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BMW Z4 repairs by problem area

Engine (31%)

Transmission and Drivetrain (6%)

Brakes and Traction Control (3%)

Suspension and Steering (11%)

Electrical and Air Conditioning (26%)

Paint, Rust, Leaks, Rattles, and Trim (17%)

Other (5%)

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Chart based on 714 repairs.

See TSBs and recalls for the BMW Z4.

BMW Z4 repair cost distribution

$2500+ (7%)

$1000 - $2499 (13%)

$500 - $999 (14%)

$100 - $499 (34%)

< $100 (32%)

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Chart based on 518 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

See repairs for all BMW Z4 model years.

BMW Z4 in Massachusetts, United States Oct 2020 - Oct 2021
Oct 2021 15000 mi US $1049	Needed a new steering knuckle & camber adjustment mechanism due to an encounter with a rock on the road. Diagnosed when front end camber could not be aligned in spec.

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BMW Z4 in California, United States Jun 2017 - Jun 2018
Apr 2018 34000 mi	Leak on top where the mechatronics wiring enters the transmission. Also a leak on the seal for the transmission pan. Covered under the CPO warranty.

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BMW Z4 in Texas, United States Jun 2017 - Jun 2018
Apr 2018 29000 mi	Factory recall

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BMW Z4 in California, United States Jun 2014 - May 2022
Mar 2014 22000 mi	Under Warranty, dealer replaced entire right tail light.
Apr 2018 45000 mi	Replace the fuel injectors
May 2019 46000 mi US $200	Replace battery

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BMW Z4 in California, United States Jun 2017 - Jun 2018
Sep 2017 70000 mi US $150	Bank 2 O2 sensor failed; replaced both pre-cat sensors.

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BMW Z4 in Pennsylvania, United States - Jan 2017
Jan 2017 33000 mi US $9200	Transmission shut down. Took dealer over a week to diagnos. Repair took several weeks. Out of warranty by years, not mileage. BMW shared half cost of repair. Couldn't trust car after this. Traded it in. After much deliberation, they think it was megatonics unit. Repair cost $4600 after BMW paid half. Very distressing with such low mileage

BMW Z4 in Ohio, United States Jun 2017 - Jun 2017
Apr 2017 US $1200	I got stranded with the hard top stuck when opening. Cause was a broken wire to one of the many sensors. Diagnostic and soldering it back cost over 1k.

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BMW Z4 in Connecticut, United States May 2021 - Jan 2022
Nov 2021 80000 mi US $3605	Front struts

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BMW Z4 in Maryland, United States - Jul 2011
Jul 2011 9000 mi	Reflash CPU.

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BMW Z4 in Hawaii, United States Jun 2017 - Jun 2018
Sep 2017 37000 mi US $200	replaced calipers with ceramric

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BMW Z4 in Missouri, United States - Oct 2010
Oct 2010 21000 mi	Air bag light,cup holder Power steering hose leaking, replaced

BMW Z4 in Virginia, United States Jun 2010 - Jun 2022
Dec 2010 18000 mi US $1600	Drivers seat spring failure. Oil analysis discovered that the connecting rod bearings were worn (43PPM lead). This is a known issue on the S54 engine.

BMW Z4 in Kuwait - Oct 2011
Oct 2011 16326 mi $1200	Xenon light control unit replaced

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BMW Z4 in Georgia, United States Jun 2018 - Jan 2022
Jan 2022 31000 mi US $600	It needed a new alternator.

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BMW Z4 in New Jersey, United States Sep 2018 - Sep 2020
Jul 2020 78 mi US $1000	Starter failed

BMW Z4 in Virginia, United States Jun 2010 - Jun 2022
Sep 2010 16200 mi	Replaced mass air filter, serviced fuel injectors, replaced valve cover and vacuum hoses, and replaced O2 sensor, which finally fixed the rough cold running.
Jun 2017 45000 mi US $500	Soft top would not operate.
May 2018 55000 mi US $2500	Soft top closing not operating. Relaxed motor and hydraulic hoses. Convertible top would not go up. Replaced motor and hydraulic hoses.
Jun 2018 56000 mi US $3400	DSC unit failed.

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BMW Z4 in New Jersey, United States Jun 2015 - Jul 2022
Jan 2015 16536 mi US $525	Convertible roof failure. Dealer quoted $1800 for repair. Fixed in a weekend for about $525. Must have technical ability and not for beginners
Jul 2018 27000 mi	Replace O2 sensor (bank 2, sensor 1) PCV heater valve recall

BMW Z4 in New York, United States Jun 2018 - Jul 2018
Jul 2018 26000 mi	PCV valve heater replaced under recall.

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BMW Z4 in Texas, United States - Nov 2010
Nov 2010 45444 mi	Repair broken cupholder and driver's seatback Replace Steering Column (faulty steering position sensor) replace interior windshield surround which had cracked

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BMW Z4 in Georgia, United States Feb 2010 - Jun 2011
Mar 2010 13000 mi	Oil Pan plug leaking- oil pan replaced

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BMW Z4 in Colorado, United States Jul 2013 - Jan 2017
Nov 2016 31000 mi US $465	Bulbs and igniters replaced

BMW Z4 in Texas, United States Sep 2013 - Jan 2014
Sep 2013 12000 mi US $3500	Stability Control Box went bad, had to be replaced BMW Emblem/Lock on trunk crooked

BMW Z4 in North Carolina, United States Aug 2010 - Sep 2011
Mar 2011 32000 mi	strut bar would loosen over time, causing rattle from under dash interior trim on door handle loosened (passenger side), easily reattached.

BMW Z4 in Texas, United States Sep 2009 - Sep 2016
Jun 2010 18000 mi	minor squeaks coming from rear axle
Oct 2011 33000 mi US $500	Alignment was done but the job was not completed properly and the bolts was not screwed back down so they all cams lose on the road.
Jan 2014 56300 mi	battery was dieing, needed to be replaced.
May 2014 58000 mi US $1900	Rear mounts
Sep 2016 71000 mi US $90	Thermostat replaced

BMW Z4 in Texas, United States Dec 2009 - Jun 2011
Oct 2009 13500 mi	dealer replaced broken cupholder at no charge
Feb 2010 16500 mi US $321	dealer failed to tighten bolts in suspension after doing an alignment causing noise. dealer replaced several parts, but did not fix problem. owner switched dealer. new dealer found and fixed problem. owner was charged for part of repairs.
Oct 2010 21300 mi	Replaced the transmission. Cost was about $6000 paid for by BMW through warranty. Problem was grinding when shifting at high engine speeds from 1st to 2nd gear, synchronizer malfunction.
Jun 2011 26000 mi US $850	doors sometimes do not unlock via remote, dealer reset computer and could not replicate, problem not fixed dealer misaligned rear wheels (too much negative camber) causing extremely uneven tire wear, tire blew on highway, both rear tires replaced, dealer denies responsibility

BMW Z4 in Alabama, United States Dec 2009 - Jun 2018
Dec 2010 24000 mi US $58	Throttle cable bracket broke causing engine to go into safe mode. License Plate bracket fell apart. BMW emblem on Driver airbag delaminating. Have to replace the whole airbag assembly.
Jun 2012 51000 mi US $75	O2 sensor
Oct 2012 52700 mi US $10	Angel eye bulb replacement.

BMW Z4 in California, United States Jun 2011 - Oct 2011
Oct 2011 41000 mi	replaced GPS antenna

BMW Z4 in California, United States Feb 2011 - Nov 2018
Apr 2011 28500 mi US $75	Thottle sensor control--software issue (TSB). Fixed by indie shop as the software flash was cheaper than spending time taking it to the dealer.
May 2011 30000 mi	Right rear axle and pinon seals on differential had minor leaks. Successfully epaired under OEM warranty. Driver's side headlight control module faulty causing intermittant headlight function. Module replaced under OEM warranty.
Oct 2018 49000 mi US $25	Oil change and oil testing. Blackstone analysis shows bearings and engine with very low wear after 30 track days

BMW Z4 in California, United States Sep 2014 - Jan 2022
Jun 2015 71000 mi US $600	Broken motor mount, passenger side.
Nov 2016 78600 mi US $1800	replaced rod bearings

BMW Z4 in California, United States Oct 2009 - Jun 2011
Dec 2009 27000 mi	Clutch slips from 1st to 2nd gear with strong grinding. Replicated problem with shop foreman. After 8 days in the shop they told me that BMW now approve replacing drivetrain. Very loud metal on metal scratching noise at startup and sometime when clutch is depressed. Dealer would not replicate problem.

BMW Z4 in Washington, United States Oct 2009 - Jun 2022
Sep 2010 29000 mi	Steering expansion hose weeping fluid

BMW Z4 in California, United States Jul 2010 - Nov 2019
Mar 2018 49000 mi US $4800	Rod bearings replaced for wear, typical with S54. Valves adjustment checked no shims req'd. All bushings replaced including sub-frame, new shocks/springs added, car corner balanced and aligned.

BMW Z4 in California, United States Apr 2010 - Jun 2013
May 2010 21000 mi	The engine mount bolts had to be replaced
Mar 2013 43000 mi US $900	Had to replace an ignition coil on #1 Cylinder. Dealer recommended replacing all the rest as well since labor charge is the same for 1 vs 6

BMW Z4 in British Columbia, Canada May 2011 - Oct 2011
Oct 2011 30380 mi	Tachometer not working when sold.

BMW Z4 in California, United States Aug 2009 - Dec 2015
Sep 2009 14000 mi	rough operating power seat.

BMW Z4 in New Jersey, United States Aug 2009 - May 2015
Sep 2010 37000 mi	Windshield molding trim was cracking excessively. Dealer replaced windshield frame under warranty after approval from manufacturer.

BMW Z4 in Arizona, United States Aug 2009 - Jul 2015
Mar 2014 51000 mi	leaky valve cover gasket. Wasn't charged as it had been replaced during Inspection II and shouldn't have been leaking already.

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BMW Z4 in New Zealand Jun 2013 - Jun 2015
Jul 2013 13120 mi $49	Broken drink holder unit on Drivers side.

BMW Z4 in California, United States May 2022 - Oct 2022
Oct 2022 122 mi US $360	Replaced headliner fabric, with matching padded grey taffeta.

BMW Z4 in California, United States May 2011 - Jun 2012
Jun 2011 37000 mi	The rubber trim above the windshield was cracking off everywhere. I bought the car like that so I'm not sure how long the rubber had been in such bad shape, but it must have been a while. Dealer replaced the piece under warranty.

BMW Z4 in Georgia, United States Dec 2015 - Jun 2018
Apr 2016 87500 mi US $100	Bad fuel injector replaced with a new one
Jul 2016 90300 mi US $575	Replaced eccentric shafts sensor and motor
Sep 2016 92000 mi US $572	Drive shafts Quibo bearing went bad. alternator bearings shot rebuilt for 72 bucks.
Mar 2017 97000 mi US $255	Leaking filter gasket and mechatronic sleeve.Replaced trans filter and gaskets refilled topped off
Aug 2017 99000 mi US $134	#6 fuel injector

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BMW Z4 in California, United States Aug 2009 - Nov 2009

BMW Z4 in Oklahoma, United States Oct 2009 - Jul 2010
Dec 2009 11000 mi	Hydraulic valve lifters making excessive noise. TSB had been written by BMW but only used if customer complains.
Feb 2010 12000 mi	First solution did not fix valve lifter problem. Final solution was to replace the cylinder head, which BMW volunteered to do in this situation. Very pleased with the final outcome of this repair.

BMW Z4 in Missouri, United States Feb 2010 - Jun 2011
Apr 2010 33000 mi	Tail lights melted in center (brake lamp heat from LA stop traffic). Also had hatch struts replaced. Also warrantied.

BMW Z4 in Texas, United States Sep 2010 - Oct 2010
Oct 2010 27000 mi	Repaired loose seatback panel and windshield seal under warranty.

BMW Z4 in Iowa, United States Sep 2010 - Dec 2012
Oct 2010 43000 mi	Replaced cowl cover (plastic at bottom of windshield) under warranty due to warpage. Replaced cowl cover (plastic at bottom of windshield) under warranty due to warpage.
Jun 2012 62000 mi US $400	SES light activated. VANOS solenoids replaced per service bulletin accessory drive belt showing wear. Tensioner found to be worn and out of alignment. Tensioner and belt replaced.
Aug 2012 65700 mi	Intermittent nuisance TPMS warnings. Some with aural, some without, sometimes flashing, sometimes solid. Dealer unable to reproduce problem. No parts replaced. Problem still exists.
Sep 2012 69000 mi US $200	Convinced the service department to replace TPMS sensor in left front wheel after I had isolated the problem (with great difficulty) using my own diagnostic equipment and software. Problem has not recurred since.

BMW Z4 in Washington, United States Aug 2007 - Dec 2009
Apr 2007 100 mi	fixed loose gear shift knob

BMW Z4 in California, United States - Mar 2008
Jan 2008 11000 mi	rattling/squeaking B-Pilar interior plastic cover.
Mar 2008 14000 mi	Gear shift difficult to place into third gear and tending to vibrate audibly in position.

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BMW Z4 in California, United States Nov 2012 - Dec 2016
May 2013 25100 mi US $50	Noises fuel pump
Aug 2013 26100 mi US $50	Bad O-ring caused system to vent

BMW Z4 in Virginia, United States Dec 2013 - Mar 2016
Apr 2014 48500 mi US $150	Lines seeping, replaced Headlight washer line broken/leaking
Jun 2014 51000 mi	Line to headlight washer fell off. Replaced unnecessarily complicated BMW part with $0.25 hose clamp - problem fixed.
Jul 2014 51500 mi US $150	Windshield Seal cracked
Apr 2015 57200 mi	Rear end leak Coolant hose leak Exterior trim underbody replaced
Jan 2016 56300 mi US $284	Front left Xenon out
Feb 2016 62300 mi US $300	Dealer had to fix third party mistake, water pump pulley misaligned, ruined belt and water pump, both replaced.

BMW Z4 in Florida, United States Aug 2009 - Jul 2011
Aug 2010 24000 mi	Tightened the front sway bar.

BMW Z4 in Colorado, United States Jul 2010 - Jan 2022
Dec 2021 68000 mi US $600	Dead battery and bad spark plug wire. Also needed fluid changes

BMW Z4 in New York, United States Jul 2009 - Sep 2017
Nov 2014 25000 mi	Rain sensor for wipers did not work after windshield replaced due to stone. Unable to fix sensor or understand why it wasn't working.

BMW Z4 in Maryland, United States Feb 2010 - May 2016
Mar 2010 26000 mi	Steering was very hard. Even more so than it normally is on my Z4m. Dealer found the cap for steering fluid reservoir missing. As a result the pump was damaged and had to be replaced.
Apr 2016 59000 mi US $500	Placing of the convertible top motor is terrible. If convertible top drain is clogged (also terribly designed) the motor is flooded and corrodes. Huge number of failures on forums. Repair is very extensive and require removal of soft top.

BMW Z4 in Alberta, Canada Jul 2016 - Aug 2023
Jun 2019 65720 mi C $5	top wouldn't open. pump noise but no action. Was operately slowly and jerkily before that. removed soft top and confirmed the banjo bolts on pump were not tightened properly from a previous pump replacement and leaked hydraulic fluid. Removed balance of fluid and replaced with new fluid. Tightened banjo bolts and reinstalled.
Jun 2022 75640 mi C $18	windshield washer motor leaking fluid.
Aug 2023 79980 mi C $1800	OEM battery finally failed die to age and faulty alternator. Driveability severely affected, cruise inoperative, on board computer constantly resetting, multiple dash lights randomly illuminated, noticeable hesitation and finally stalling completely. Battery completely discharged. Replaced battery and no improvement. Alternator output appropriate voltage couldn't check regulator board but dash voltmeter extremely erratic. Alternator replaced and the random failures have left the electrical system.

BMW Z4 in Oregon, United States Apr 2012 - Jul 2022
May 2013 49000 mi US $1200	Convertible top would not go down after pulling from winter storage. Electric/hydraulic motor had seized. Water in the case. Had to replace motor. Convertible top motor failed (water in the case). Replaced motor.
Sep 2016 98000 mi US $869	Misfire on cylinder 6. Car running very rough. Replace all plugs and coils (typical of a 100k mile service)
Jun 2017 102000 mi US $350	Right side motor mount and one of the two bolts broke.
Sep 2017 103000 mi US $500	Diagnose intermittent alternator operation. Fails when hot. Owner decided to drive on battery and self-repair later. Swapped in good battery and drove the ~150 miles home.
Sep 2018 108000 mi US $408	Replaced the alternator, and the two related accessory belts
Mar 2021 111000 mi US $25	Replaced cracked windshield washer fluid reservoir.

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BMW Z4 in Ontario, Canada Dec 2010 - Jul 2012
Jan 2011 29760 mi	N52 exhaust lifter replacement under warranty. http://www.rtsauto.com/bmw-e90-valve-train-lifter-ticknoise/ N52 exhaust lifter replacement under warranty. http://www.rtsauto.com/bmw-e90-valve-train-lifter-ticknoise/
Mar 2011 31000 mi	Head gasket oil leak
Jun 2011 32240 mi	Knocking or creaking sound in rear suspension. Dealer says they retorqued and relubricated all rear suspension parts. Seems to have fixed it.

BMW Z4 in New York, United States Jun 2013 - Aug 2016
Aug 2014 64900 mi US $109	Battery would die after a week of non use. Replaced battery with one from bj s for $109.00 with 720 cca. Original was only 520 cca. Found center console switch was defective.
Jun 2015 69000 mi US $400	Front control arm bushings and rear springs
Dec 2015 71000 mi	D2s xenon bulbs replaced

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BMW Z4 in North Carolina, United States Sep 2012 - Jul 2022
Nov 2012 51700 mi	left foglight contained trapped moisture Plastic fitting in retractable headliner had broken, leading to droop in headliner.
Feb 2016 89000 mi US $700	Audible clunking coming from differential area. Driveshaft had to be dropped to allow lubrication of coupling. Completed inspection II. Audible clunking coming from differential area. Driveshaft had to be dropped to allow lubrication of coupling.
Sep 2016 98000 mi US $50	One bi-xenon bulb was turning red, indicating end of life. Replaced both bulbs to ensure color and brightness match. Windshield cowl had become brittle, pieces were breaking off.
Sep 2017 110000 mi US $216	Right front wheel speed sensor failed, resulting in disabling of ABS and traction control system
Dec 2017 113000 mi US $913	Water pump failed. Pump is electrically boosted, and this wasn't achieving proper speed, resulting in engine overheating. Thermostat was replaced for good measure, because it has to be removed anyway to get to the pump.
May 2021 141000 mi US $1684	Clutch replacement. It was starting to slip. With 140k miles on it, I concluded it was starting to wear out and opted to replace.

BMW Z4 in Illinois, United States Aug 2009 - Apr 2012
May 2010 31600 mi	Cyclic vibration at highway speeds. Owners notice the vibration, BMW does not seem able to "Feel" the vibration.
Nov 2010 33900 mi	Power Convertible top motor quit and was replaced under warranty.

BMW Z4 in Tennessee, United States Oct 2014 - Apr 2016
Oct 2014 40000 mi US $3800	ABS Braking System. ABS Module and Hydraulic Pump replaced due to failure.

BMW Z4 in Massachusetts, United States Aug 2009 - Jan 2015
Jul 2011 25000 mi	Brake and DSC light on, car pulled hard to left. Steering sensor replaced. Problem solved.
Jul 2014 34000 mi US $3540	ABS sensor light came on. Dynamic Stability Control module failed. No repair attempted, as estimate for replacement was ridiculously high Belt tensioner leaking, replacement advised. Did not repair at this time. Control arm bushings worn, replacement advised, cost estimate $630.
Oct 2014 34200 mi US $2695	Control arm bushings worn and replaced belt tensioner leaking and was replaced. Dynamic Stability Control module failed. ABS light was on, loss of ABS system. Replaced module, Estimate for repair was $3500, BMW NA authorized goodwill out-of-warranty repair, cost to owner was $1289.

BMW Z4 in Pennsylvania, United States Jul 2007 - Feb 2012
Jun 2007 2800 mi	outside temperature sensor failed
Aug 2010 32000 mi US $80	power top stopped working (2nd time since new. Power top motor failed again. Warranty replaced motor.

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BMW Z4 in New Jersey, United States Jun 2013 - Dec 2015
Mar 2014 62000 mi US $1300	Transmission pan leaking Coil springs rear replaced
Aug 2014 64500 mi US $100	Cable making noise
Nov 2014 66000 mi US $150	Original battery replaced Solenoid dirty, cleaned and changed oil

BMW Z4 in South Carolina, United States Aug 2010 - Jul 2012
Sep 2010 14000 mi US $5	Light inside center storage compartment would not go off. Door that controlled the light was damaged. New door was ordered and installed.

BMW Z4 in Texas, United States Sep 2010 - Mar 2013
Jun 2011 47000 mi	Leaking transmission fluid from area around drain pan. Dealer replace trans pan seal and some other tube I'm not familiar with. Trans fluid replaced due to dropping the pan.

BMW Z4 in New York, United States Apr 2016 - Sep 2018
Jun 2018 36000 mi	fuel cannister and pcv valve

BMW Z4 in California, United States Aug 2008 - Jul 2010
Jul 2008 9000 mi	Windshield wiper control stopped working - wipers never turned on. Fixed under warranty at 1-year service.

BMW Z4 in New York, United States Apr 2010 - Jun 2018
May 2010 33000 mi	The xenon light turned off one night.. got it replaced
Jan 2011 37000 mi	Computer enter transport mode, no ac, defroster available
Apr 2011 39200 mi	Found leak on driveway, traced it to transmission pan, was later told it was the mechatronic Xenon auto level also did not work.
Aug 2013 51000 mi US $100	Coolant light came on
Nov 2013 52000 mi	Check engine came on, rough idle
Dec 2013 52000 mi	Engine studdering, pull codes and order coil to test, bad coil on #2
Mar 2014 53000 mi	Convertible top will not open or close. Replaced motor
Jun 2014 57000 mi US $200	Replaced accessory belt Replace brake pads, sensor, caliper, bleeder. Bleed screw broke off, replaced entire caliper.

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BMW Z4 in Alabama, United States Mar 2011 - Sep 2015
Apr 2011 37500 mi	Driver's cup holder replaced. Both bump-stops under hood replaced.
Mar 2014 73000 mi US $3500	This trip was a game changer... Transmission leak, Cam timing thingy, Sensor leak, Inspection II, and the power top motor died. The dealer failed to inform me that the drain system for the top needed to be checked occasionally.
Jun 2015 85000 mi	Power top motor broke again within almost a year.

BMW Z4 in Tennessee, United States Aug 2014 - Dec 2016
Nov 2016 116700 mi US $700	Valve cover gasket leaking oil.
Dec 2016 121000 mi US $800	Coolant expansion tank had to be replaced. Oil filter housing and cooler gaskets were leaking.

BMW Z4 in Texas, United States Feb 2016 - Jun 2018
Nov 2016 89000 mi US $1500	Oil leaking from the valve cover. Replaced gasket, didn't solve the problem. Replaced the entire valve cover.
Feb 2017 90000 mi US $200	Replaced lower control arm. Replaced coolant expansion tank.
Oct 2017 95000 mi US $1500	Water pump failed, replaced pump, thermostat, and a hose.

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BMW Z4 in Arizona, United States Jan 2010 - Sep 2016
Feb 2010 26000 mi	Intermittent headlight not working
Mar 2010 27000 mi	Retractable nav display intermittantly would not open.

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BMW Z4 in Alabama, United States Dec 2011 - Jul 2014
Apr 2012 92000 mi US $500	Loose suspension parts
Jul 2012 92200 mi US $1500	Airbag light came on.

BMW Z4 in California, United States Jun 2010 - Aug 2011
Dec 2010 61000 mi US $1800	Constant Oil Pressure Valve leak. Rear differential seals leaking, A/C belt cracked - after 4 years of ownership.
Mar 2011 64000 mi US $900	Power window regulator broken, repaired by dealer.

BMW Z4 in California, United States Aug 2021 - Jul 2022
Jul 2022 59000 mi US $600	fuel pump and filter

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BMW Z4 in Florida, United States Aug 2009 - Jun 2015
Dec 2010 66000 mi US $1150	replaced front lower control arms and bushings
Oct 2011 78800 mi US $150	replaced coil cylinder #5
Jul 2013 102800 mi US $1200	new radiator resevoir hoses theromstat and water pump
Oct 2013 107200 mi US $525	replaced starter

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BMW Z4 in Minnesota, United States Nov 2009 - Jun 2022
Jul 2011 44000 mi US $25	alarm would go off after set. replaced the under hood switch.

BMW Z4 in Washington, United States Jul 2015 - May 2017
Mar 2016 60000 mi US $475	Replaced air mass sensor
Jul 2016 62500 mi US $1978	Water pump, thermostat, temperature sensor replaced. Water pump was preventives. When other two failed car overheated and had to be towed.
Nov 2016 65200 mi US $870	Expansion tank exploded, dumping all coolant. Probably result of faulty cap.

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BMW Z4 in Virginia, United States Aug 2009 - Mar 2010
Sep 2009 26000 mi	AC computer (IHK) died. Blew hot air when the compressor was working. Replaced IHK, now working.

BMW Z4 in California, United States Mar 2010 - May 2016
May 2012 65500 mi US $780	Replace passenger-side broken engine mount bolts, engine mount bracket and rubber mount seats.
Dec 2012 70000 mi US $300	Dead battery
Feb 2013 72300 mi US $2000	Oil cooler leaking.
Mar 2013 72000 mi US $500	A/C not cooling air, vacuum tested, no leaks found, A/C recharged and functioning well. High pressure power steering line seeping/saturated, replaced line.
Oct 2014 81300 mi US $200	Broken shift knob. Cracked third brake lamp. Sun damaged M badge.

BMW Z4 in Ontario, Canada Mar 2010 - Jun 2022
Apr 2010 8680 mi	Left hand side inner Halo light ring not lighting, Light out warning on dash. Dealer had to order new headlight assembly for repair.
Jun 2015 17360 mi C $250	Replaced battery
Mar 2018 22320 mi C $200	hid bulb would not always turn on

BMW Z4 in Virginia, United States Apr 2010 - Jan 2011
May 2010 18000 mi	windshield cowl trim piece was warped & cracked.

BMW Z4 in Tennessee, United States Oct 2009 - Apr 2018
Mar 2010 40000 mi	headlight replaced
Oct 2010 51000 mi	Small electrical component in front fascia.
Nov 2010 51500 mi	Wire wrap melted on wire next to vanos. Replaced wire wrap.
Oct 2013 73300 mi US $150	Battery died. Cable was corroded to battery terminal.
Oct 2014 81000 mi	Plastic handle on center console broke. Seatbelt guides on top side of both seats broke.
Dec 2017 97000 mi US $100	Rear Third Brake Light was falling apart. Repair unsuccessful.

BMW Z4 in New Mexico, United States Oct 2009 - Jun 2011
Apr 2010 18000 mi	Screw fell out of convertible top, oil change, and sticky top latch.

BMW Z4 in California, United States Jul 2009 - Aug 2014
Aug 2009 23400 mi	Tighten loose dashboard screws. Replace driver's side xenon lamp.
Dec 2009 27000 mi	rattle in the dash area, fixed to my satisfaction.
Aug 2010 35000 mi US $179	cleaning of fuel injectors
Jul 2013 58300 mi US $396	Xenon bulb failed, replaced the pair myself.
Mar 2014 62000 mi US $200	Battery ran low, triggering 'transport mode'. Had to reset codes. Also, changed headlights (not related.

BMW Z4 in Alabama, United States Jan 2010 - Oct 2016
Oct 2015 38000 mi US $450	Car has "Top HIFI System Professional DSP" sound system. All four woofers stopped working. I correctly guessed the ten channel amplifier had partially failed. New amp was $1,000. I purchased a used one for $450, installed it, problem solved.

BMW Z4 in Michigan, United States Dec 2019 - Apr 2023
May 2022 62000 mi US $161	Drivers side window guides needed to be replaced. I paid for parts and they provided labor. Top was removed for a prior repair of the top hydraulics. When the top was reinstalled, there was a small gap between window and top guide. Very difficult to see and only showed up after a car wash.

BMW Z4 in New Jersey, United States Mar 2017 - Jan 2022
May 2017 52500 mi US $10	Windshield washer pump replaced

BMW Z4 in California, United States Sep 2016 - Jul 2022
May 2018 61000 mi US $150	Both mirrors and front bumper paint clearcoat failed.

BMW Z4 in Georgia, United States Jul 2009 - Jan 2022
May 2009 9600 mi US $210	Had recommended oil change and brake fluid changes. Put in modified CDV and had computer settings modified. No cost for services.
Oct 2009 10000 mi	Oil change and replaced wiper arms which were damaged by the technician on the last visit.
Apr 2010 11000 mi	TSB for sill plate damage.
May 2010 12000 mi	Broken cupholder

BMW Z4 in Georgia, United States May 2016 - Jun 2018
Jun 2016 92000 mi US $90	Center brake light developed another cracked lens. Replaced it
Dec 2016 97000 mi US $80	Burned out xenon driver headlight. Replaced via access panel in the wheel well using instructions found on YouTube
Oct 2017 104000 mi US $5200	Cracked VANOS hub, replaced. Hoses, o2 sensors, replaced inspection 1 and 2 items
Mar 2018 107000 mi US $30	Burned out passenger xenon headlight. Replaced. Extra time spent figuring out how to get metal spring back on to assembly

BMW Z4 in Ontario, Canada Sep 2015 - Jul 2016
Sep 2015 75020 mi	Differential seal leaking, straightforward repair with no special issues.

BMW Z4 in Pennsylvania, United States Jun 2011 - Feb 2013
Aug 2012 35600 mi US $625	Starter intermittently dead. Replaced starter.

BMW Z4 in Texas, United States Apr 2012 - Dec 2016
Feb 2014 39000 mi US $1000	During Inspection 1 service, an oil leak was found and thought to be from the constant pressure valve - turned out that the head gasket was the source, and that was replaced.
Mar 2015 50000 mi US $634	Radio would cut out, was suspected as a radio issue. Turned out to be alternator needing replacement. Windshield sprayers stopped working; pump was replaced.
Apr 2016 56000 mi US $401	Car will stall on cold starts and sometimes while sitting after warmed up. Drive belts had some visible cracks.
Dec 2016 57000 mi US $60	Battery refused to take charge; replaced with proper sized battery (48R).

BMW Z4 in California, United States Sep 2014 - Jun 2022
Jul 2016 36200 mi US $165	A/C fan inoperative
May 2018 41343 mi US $267	No start. New key relay

BMW Z4 in Texas, United States May 2010 - Oct 2021
Jun 2012 29000 mi	Spring holding the hood up at the front broke.
Mar 2013 37000 mi US $430	Power steering hose was leaking, replaced.
Jun 2013 37000 mi US $65	Shift knob came off, replaced with ZHP knob.
Feb 2014 38600 mi US $250	Rear sway bar end link snapped in half on passenger side.
Sep 2014 41000 mi US $5	Center storage compartment button broke off.
Aug 2016 51000 mi US $100	Leaking shifter shaft seal Starter failed the day before a scheduled repair for the other items, intermittent starting Flex disc cracked
May 2017 52000 mi US $40	Angle eye bulb replaced

BMW Z4 in Missouri, United States Jul 2009 - Aug 2010
Aug 2009 21000 mi	nav system error, blown speaker
Jan 2010 US $60	Replace rear side marker, replace M emblem on engine after chrome bubbled

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BMW Z4 in Alabama, United States Nov 2009 - Jun 2011
Jun 2010 20000 mi	Lifter noise, replaced lifters.

BMW Z4 in British Columbia, Canada Mar 2014 - Jun 2016
Jul 2014 35420 mi	Transmission pan was leaking, I simply tightened the pan bolts a little and the leak stopped.
Jan 2015 C $300	Transmission pan was leaking. New pan, gasket, filter and ATF
Feb 2015 41540 mi	Windshield wipers were erratic. Stopping for several minutes, not shutting off. Took wiper motor out and cleaned grease off electrical contacts.

BMW Z4 in California, United States Feb 2010 - Jun 2011
Apr 2010 28000 mi	passenger side power window and same side cup holder.

BMW Z4 in New Jersey, United States Nov 2009 - Jun 2011
Aug 2010 46000 mi US $4200	antennae for gps had to be replaced

BMW Z4 in Texas, United States Jan 2011 - Oct 2017
Nov 2011 50000 mi US $500	Battery safety fuse fired off. Mechanic put back together but dash light is still on. He will order parts to replace. Airbag light is on.
Jul 2012 52000 mi US $4000	New battery New CRC?? SRC? computer Headlight starter
Apr 2017 60600 mi US $1100	Work to lessen negative camber on rear wheels. Installed longer adjustable suspension parts so that the rear tires would wear better. Problem was rear tires wearing out prematurely on insides of tread. Once tire even separated and required tow truck.

BMW Z4 in Georgia, United States Dec 2010 - Jun 2012
Jun 2012 28000 mi US $2000	Convertible roof motor needed replacement.

BMW Z4 in Virginia, United States Aug 2011 - Feb 2022
Jul 2012 48200 mi US $1700	pump to raise and lower the convertible top went out
May 2013 52300 mi US $5100	pump for convertible top failed previous owner had used wrong parts and BMW insisted on replacing entire front brakes including rotors and pads and wheel bearings
Sep 2015 66000 mi US $1200	Loose steering Convertible top won't go down again - previously repaired by box for $1800.
Feb 2022 90000 mi US $150	Replaced battery

BMW Z4 in British Columbia, Canada May 2011 - Nov 2012
Jun 2011 41540 mi C $3000	Had many lights on, speedo did not work. ABS, Traction control and brake lights all on. Replaced ABS module, corrected al problems

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BMW Z4 in Florida, United States Mar 2010 - Jul 2014
Oct 2013 57300 mi US $160	Coil replaced.

BMW Z4 in Pennsylvania, United States Oct 2010 - Jun 2022
Jul 2018 51000 mi US $322	One of the struts from the center of the firewall to the left shock tower cracked creating a maddening squeak when I drove. Thompson BMW in Doylestown Pa did a great job of diagnosing and repairing. Even gave me a rental as they kept it overnight. Overall, a minor repair.

BMW Z4 in Texas, United States Aug 2009 - Mar 2011
Sep 2009 16700 mi	CUP HOLDER REPLACED
Dec 2010 39000 mi	switch on clutch was replaced so engine could be started

BMW Z4 in Virginia, United States Jul 2009 - Oct 2012
Aug 2009 23900 mi	Replace Xenon headlight control unit - under warranty
Apr 2010 34800 mi	Thumping sound when exit/enter a driveway. Caused by loose mounting bolts on strut braces.
Jul 2010 39000 mi	Replaced bad motor for power window Replaced bad motor for convertible top
Jun 2011 50000 mi US $100	A/C did not cool properly. Shop could not find leak and added refrigerant.
Feb 2012 54000 mi US $1400	DSC computer crapped out & needed replacement

BMW Z4 in Pennsylvania, United States Mar 2010 - Oct 2010
Jul 2010 23000 mi	Strut Tower brace became loose
Sep 2010 26000 mi	Defective starter motor was replaced

BMW Z4 in Iowa, United States Feb 2016 - Jan 2022
Feb 2016 45000 mi US $400	Zenon bulb actuator, left side. Also replaced bulb.

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BMW Z4 in Florida, United States Feb 2017 - Apr 2018
Apr 2017 83000 mi	Leaking valve cover
Apr 2018 95000 mi US $115	Lower Control arm and bushings. Both sides

BMW Z4 in Saskatchewan, Canada Jun 2013 - Sep 2016
Sep 2014 29760 mi C $1000	Problem with add-on soft top module. Removed and issues went away.

BMW Z4 in Texas, United States Apr 2012 - Sep 2016
Nov 2012 48800 mi US $175	Had to replace battery, found a 3 year warrenty for 175.00
Nov 2014 71600 mi US $225	Replace lower control arm bushings
Dec 2014 73000 mi US $250	Car will not start replaced starter still same problem now have EML and check engine light. Will need to check trouble codes.
Apr 2015 73700 mi US $554	No start, shop found "EWS" module bad, had to order from BMW and reprogram. The longest time was waiting for part to arrive. Actual labor was less then 4 hours.
Oct 2015 81500 mi US $650	Car would wander and follow cracks in the pavement. Four wheel alignment and lower control arm bushings were replaced. Headlights would not come on after they had been on for a time, turned off, and turned back on. Found light ballast failing and replaced.

BMW Z4 in Arizona, United States Nov 2009 - Jun 2018
Jul 2010 28300 mi	Plugged condensation drain
Dec 2013 38000 mi US $378	Problem with battery reset after a battery replacement. Had problems getting the electrical system to respond.
Mar 2017 47000 mi US $2600	replace convertible top hyd pump due to water damage from plugged drain that is not accessible without removing top.

BMW Z4 in California, United States Aug 2009 - Jun 2018
Oct 2011 31000 mi	Convertible top does not work anymore. Motors and switches seem to work, but top no longer raises or lowers. Top needs to be removed for further examination. Very expensive to do that.
Sep 2012 32000 mi US $1100	Replaced convertible top pump and motor assembly. Not rusty as most are, just stopped working.
Jul 2014 34200 mi US $1035	Battery was not being charged properly. Alternator was not charging at low speed, but seemed to be charging at higer rpm. Alternator was replaced. Amount paid included alternator, labor and 2 hours charge for 'diagnosis'.
Oct 2014 35200 mi	The very expensive alternator repair did not work. Battery was replaced as it was defective at 2+ years. Repair shop did not have a battery tester that could cycle batt. Maybe I did not need alternator!! O'Reilly had this batt. tester.
Aug 2017 36953 mi US $340	Left rear wheel bearing making noise. Replaced. Bearing was $95. Labor was $240. Also oil and filter change and attach lower engine cover with new one.

BMW Z4 in Washington, United States Jul 2009 - Jun 2018
Dec 2009 17000 mi	Two broken cupholders.
Jan 2010 29800 mi	Replaced lifters to solve problem of ticking noise.
May 2010 19000 mi	Ticking sound from engine after short trips. Head replacement approved and parts ordered.
Jun 2010 22000 mi	head replacement to correct ticking sound
Mar 2013 30000 mi	Starter pinion not always fully retracting causing noise on some start ups.

BMW Z4 in Florida, United States Jul 2009 - Dec 2010
Dec 2009 33000 mi	Engine making ticking noise. All lifters and related parts replaced. Known problem
May 2010 36000 mi	Replacement of vehicle head assembly

BMW Z4 in California, United States Jan 2012 - Apr 2017
Sep 2016 77000 mi US $20	I couldn't start the car intermittently; I would jump the battery and it would start or so I thought! I bought a new battery but the problem persisted. It turned out to be a failing ignition coil which I replaced with one I bought on ebay.
Nov 2016 78000 mi US $500	The water pump failed which required replacement of the pump, thermostat, and coolant reservoir.

BMW Z4 in Texas, United States Oct 2009 - Feb 2010
Nov 2009 26000 mi	Valve tapping when cold. Shop replaced all exhaust side hydr. valve pushrods slow automatic transmission fluid leak.
Feb 2010 27000 mi	Transmission still leaking when traded after two trips to repair it.

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BMW Z4 in North Carolina, United States Oct 2009 - Jan 2016
Aug 2010 21000 mi	Hydraulic motor for convertible top is toast, needed replacing.
Sep 2010 18000 mi US $50	The right rear wheel had a crack in the rim, causing tire to lose pressure. Unclear what caused the crack. Dealer surprised. Said never saw this without something catastrophic having happened to the wheel. The hydraulic motor on the convertible top went out, still under extended warranty so the cost was only $50 which was the stated deductible.
Feb 2013 41700 mi US $2700	The door lock on passenger side did not engage if a key was used. The part came from Germany and the door had to be taken off since some of the old lock cylinder feel inside the door The bushings were wearing out, the car is 7 years old
Nov 2013 50000 mi US $1500	The hydraulic motor went out
Nov 2014 59000 mi US $1900	The engine's fan started to run after being turned off, then a day later the engine thermostat was in the 'red' area
Mar 2015 62000 mi US $3700	The dynamic Stabilizer unit went bad
Jan 2016 41000 mi US $5000	the ball joint was about to go out, never been fixed before in 9.5 years

BMW Z4 in California, United States Aug 2009 - Jun 2012
Sep 2009 13000 mi	Valve lifter problem
Jan 2010 14000 mi	Valve noise, BMW performed hydraulic valve "flush" per an TSB.
Nov 2011 19200 mi	Replace valve lifters.....ticking noise when cold or after short trips

BMW Z4 in Ontario, Canada Jul 2009 - Nov 2013
Aug 2009 24180 mi	The passenger cup holder broken - was replaced under warranty - dash "wood" cracked - replaced under warranty - also did a "low mileage" oil change under the free maintenance policy
Jan 2012 32240 mi C $50	one rear spring was broken - repaired for $50 under certified warranty

BMW Z4 in Indiana, United States Apr 2011 - Jun 2011
May 2011 34300 mi US $50	driver side window regulator went bad, required replacement. driver side window regulator went bad, required replacement.
Jun 2011 36000 mi US $50	Head was replaced due to ongoing lifter tick problem, covered under CPO warranty. Head was replaced due to ongoing lifter tick problem, covered under CPO warranty.

BMW Z4 in Ontario, Canada Nov 2013 - Jun 2022
Nov 2014 21800 mi C $105	Replaced original 8 year old battery (it was getting weak and a load test showed 50%). Bought a Costco battery for $105, reset clock, all done.

BMW Z4 in New Jersey, United States Jan 2021 - Jun 2022
Apr 2021 94000 mi US $525	Replaced frozen tie-rods and wheel alignment
Oct 2021 94600 mi US $238	Replaced oil filter housing and gaskets
Apr 2022 96000 mi US $178	Control Arm Bushings Replaced

BMW Z4 in Pennsylvania, United States Aug 2009 - May 2011
Oct 2009 28000 mi	drain for convertible top motor clogged, water damaged motor, needed to be replaced.

BMW Z4 in North Carolina, United States Feb 2010 - Jun 2011
Apr 2010 24000 mi	Pressure plate failure

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BMW Z4 in Virginia, United States Sep 2011 - Jun 2012
Oct 2011 56000 mi US $35	Exterior temperature sensor showing incorrect values. Replace temperature sensor.

BMW Z4 in Illinois, United States Mar 2012 - Jul 2022
Jul 2012 41200 mi US $223	Passenger side Window regulator failed. Replaced with new window regulator.
Nov 2012 42200 mi US $392	Replaced rear output shaft bearings.

BMW Z4 in New Hampshire, United States Sep 2010 - Sep 2014
Mar 2010 28000 mi	Radio not working correctly. Presets play other stations than what is set. Will not go to next station.

BMW Z4 in Massachusetts, United States Sep 2016 - Oct 2016
Oct 2016 38000 mi	Things would not work..problem would move when battery terminal lifted. Probably in the main computer. Dealer would never repair. Had problem from when vehicle was new. Dealer would always say "no problem found" even when I brought it in wi.

BMW Z4 in Tennessee, United States Feb 2015 - May 2018
Feb 2018 96000 mi US $500	Coolant overflow tank.
Apr 2018 96000 mi US $1400	Oil lines, oil filter housing

BMW Z4 in Ontario, Canada Feb 2017 - Jun 2022
Jun 2017 35340 mi C $70	Vehicle had a pronounced clunking noise in front end. Mechanic quickly diagnosed a loose strut brace. Tightened brace and repaired problem.

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BMW Z4 in North Carolina, United States Oct 2015 - Jun 2018
Oct 2015 49000 mi US $500	Spark plugs all six blew
Jan 2016 60800 mi US $1400	Gaskets leaking and oil pan replacement, along with I had an inspection II done. That is why it was so expensive with labor and the parts.
Oct 2017 70000 mi US $8000	Engine fell out, pistons and headers all needed work. This was the worst damage they have ever seen.
Jun 2018 100000 mi US $8000	Another year another engine. It fell out again on the interstate. Hopefully it stays in this time.

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BMW Z4 in Pennsylvania, United States - Nov 2008
Nov 2005 601 mi	Air leak, driver side, no repair made.
Apr 2006 949 mi	Fuel pump & sensor were replaced.
Oct 2006 5235 mi	Air leak, driver side, no repair made
Jan 2007 5250 mi	Fixed air leak
Jun 2007 6206 mi	Car idle was slow, car felt like it was stalling, said there was no problem
Oct 2007 8079 mi	Fuel pump making noise again, service could not duplicate. Was not fixed.
May 2008 8810 mi	Battery wasn't charging, service could not find a problem.
Nov 2008 12051 mi	Fuel Pump making loud noise, BMW sent service rep to my home, took it to BMW, 2nd fuel pump was installed. CD player making noise, no fix was made.

BMW Z4 in Pennsylvania, United States Nov 2015 - Mar 2017
Aug 2016 25000 mi US $2500	electric steering motor failure required replaced of entire steering column and lower steering link

BMW Z4 in Nevada, United States Jun 2015 - Jan 2018
May 2016 72300 mi US $7000	starter replaced
Sep 2016 73000 mi US $800	bearings were removed and replace form all 4 front and rea rods
Jun 2017 79000 mi US $1400	differential, coolant, and brake fluid flush and change, upper and lower radiator hoses replaced radiator expansion tank replaced

BMW Z4 in New Mexico, United States Oct 2009 - Dec 2012
Oct 2009 23000 mi	car won't start in morning (intermittent issue) - dealer has re-charged battery
Nov 2009 24000 mi	car won't start in morning - dealer re-placed battery
Dec 2009 26000 mi	car won't start in morning - dealer re-programmed computer.
Feb 2010 25000 mi US $700	car will not start in morning, replaced starter
Mar 2010 26000 mi	car will not start in morning, replaced battery again (dead cell)
Apr 2010 29000 mi	car will not start in morning, replaced battery again (dead cell) - dealer still working to determine cause (dealer still treating as warranty work)

BMW Z4 in California, United States Sep 2008 - Jun 2022
Aug 2008 22000 mi US $1200	Crack in rear alloy wheel required replacement of wheel and tire.
Jun 2013 52000 mi US $21	security alarm misbehaved . . . would sound off when car was parked in the sun or on warm days. replaced underhood relay switch.
Nov 2013 57000 mi US $268	Crumpled heat shield around exhaust caused harmonic rattle. Replaced heat shield.
Feb 2015 68000 mi US $1610	Low oil light lit after engine shutdown. Diagnosed as faulty oil level sensor. Replaced sensor.
Apr 2015 72000 mi	Plastic gear in passenger seat adjustment motor stripped. New part ordered, never arrived. Service provider claimed FedEx lost part in transit. This part NLA in North America. Could not wait for part to be shipped from Germany.
Jun 2015 82000 mi US $1500	Stripped plastic gears in seat base made adjustment functions inoperable. Overnighted new seat base from inventory. Installed new part. Restored seat functions.
Jun 2017 101000 mi US $1299	Cracked air intake boot. Replaced boot. Oil housing leak. Replaced Oil housing gasket and oil pipe. Odd wear on front tires. Replaced front control arm bushings
Oct 2017 102080 mi US $1975	Engine ran rough. Ignition misfire codes. Replaced all plugs and coil packs. Non-start issue. Random and unpredictable. Difficult to reproduce problem in shop. Finally replaced starter. The unpredictable starting malfunction remains unrectified in my Z4. The issue appears now to be isolated to the ignition switch deeper in the steering column than the keyway. I have not been back to the shop to have that switch changed until I'm thoroughly convinced it is the root issue.

BMW Z4 in California, United States Oct 2015 - Jan 2022
Feb 2016 84000 mi US $675	Replaced starter Valve cover gasket has small leak
Feb 2017 97000 mi US $2200	One morning my vehicle could barely start and keep idle. The turn about was sudden as the day before the vehicle ran perfectly. I sent the vehicle to the dealership and was informed that the DME computer failed and had to be replace and reprogramed.
May 2017 102388 mi US $406	As part of the repair, I also had to replace valve cover gasket. Replaced leaking oil filter gasket
Jun 2017 102846 mi US $56	Replaced engine drive belt
Jan 2018 113009 mi US $306	Replace coils and sparkplugs
Feb 2018 115330 mi US $811	Replaced leaking oil pan gasket. Replaced cracked air intake boot.
Mar 2018 116496 mi US $447	Replaced bent swaybar link (both sides, but only passenger side was bent at the top.) Also, replaced the rubber brake caliper bushing on all four calipers with brass replacements. Replaced both ripped front strut mounts
May 2018 117406 mi US $275	Replaced 6-year old Batter
Jan 2022 175000 mi US $1000	I had problems starting the vehicle. I had starter replaced.

BMW Z4 in Manitoba, Canada Sep 2011 - Dec 2013
Aug 2013 28920 mi C $65	Passenger airbag/occupancy sensor replaced

BMW Z4 in Idaho, United States Jun 2013 - Aug 2018
Jul 2013 43000 mi US $180	Replaced thrust arm bushing on front control arms.
Mar 2016 76000 mi US $350	Car was not stable while driving. Replaced control arms and related bushings.
Jun 2016 78000 mi US $250	Starter failed, repaired starter.
Nov 2016 82700 mi US $300	Steering was loose, replaced entire tie rod assembly. Suspension was loose, replaced sway bar end link. Suspension was loose, replaced stabilizer bar bushings.
Jan 2017 84500 mi US $400	Belts worn. Replaced both AC and alternator belts. Oil leaks visible from VANOS oil pressure tube. Replaced VANOS oil pressure tube. Engine valve cover gasket leaking, replaced valve cover gasket.
Sep 2017 92000 mi US $15	Ignition switch started not working intermittently, replaced ignition switch.
Dec 2017 94800 mi US $1200	All shocks and struts were worn out. Replaced all shocks and struts and associated mounting hardware.

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BMW Z4 in Virginia, United States Sep 2011 - May 2018
Jan 2011 36 mi	Everything else, repair Replaced dead battery
Jan 2013 49000 mi	low charge
Apr 2013 44200 mi US $350	dead/dying battery. Installed new battery.
Jul 2014 50200 mi US $75	Lost or stolen emblem
Mar 2016 49000 mi US $300	Relaxed seat belts receiver end broken
Sep 2016 50000 mi US $360	Clouded side mirror
Sep 2017 42000 mi US $2100	replaced hydraulic pump for convertible top
Jan 2018 42000 mi US $150	Replaced battery

BMW Z4 in Nevada, United States Sep 2011 - Jun 2018
Jan 2013 87000 mi US $200	speed sensor in transmission was replaced
Feb 2014 90400 mi US $90	cooling overflow tank cracked. replaced tank and coolant.
Sep 2014 98000 mi US $60	replaced trunk lift struts
Nov 2015 99000 mi US $150	replaced battery
Mar 2018 101000 mi US $180	replaced starter

BMW Z4 in New York, United States Jun 2013 - May 2014
May 2014 56000 mi US $1200	Top motor needed to be replaced.

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BMW Z4 in Pennsylvania, United States Sep 2011 - Jan 2014
Jan 2014 54000 mi US $300	Front strut bracket lower Lower radiator hose and sending ubit Valve cover gasket

BMW Z4 in Oklahoma, United States Mar 2013 - Mar 2015
Sep 2013 64000 mi US $200	Oxygen sensor needed to be replaced

BMW Z4 in California, United States Oct 2011 - Dec 2011
Nov 2011 60100 mi US $112	Dead battery. Changed it myself with an aftermarket part. No electronic reset needed for any options on the vehicle.

BMW Z4 in California, United States Jul 2015 - Jan 2019
Mar 2016 97000 mi US $630	Starter motor replaced

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BMW Z4 in Pennsylvania, United States Nov 2011 - Jan 2022
Dec 2011 21000 mi US $160	rear brake light lens cracked, seems to be an issue with many z4's. very costly for a plastic lens piece
Dec 2017 58000 mi US $300	rear coils cracked, typical for this car

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BMW Z4 in Washington, United States - Feb 2008
Feb 2008 25 mi	Rear center brake lens cracked due to excess stress caused by retaining springs. Problem is recognized by bmw as factory fault and fixed under warranty free of charge. BMW goodwill will also fix outside of warranty for free.

BMW Z4 in Minnesota, United States Jan 2011 - Jun 2012
Jul 2011 32000 mi US $900	Windshield wiper and headlight sensor failed, replaced windshield and sensor
May 2012 36000 mi US $400	Cracked brake line

BMW Z4 in Florida, United States Feb 2010 - Nov 2010
Apr 2010 44700 mi US $500	Erratic tire warning light, oil light stayed on after ignition was turned off, standard oil change, wiper blade replacement and 2 tires (rear), I'm getting almost 22,000 on the head for my Continental 3's, much lower than my 328ci

BMW Z4 in Ontario, Canada Oct 2010 - Mar 2013
Sep 2012 66340 mi C $200	Replaced both the Intake Air Adjustment Unit/DISA Valve and the Lower Intake Boot due to wear

BMW Z4 in Alabama, United States Aug 2010 - Mar 2018
Sep 2010 57000 mi US $50	Side mirror remote adjustment switch failed. Switch was replaced. Manual transmission shifting poorly -- inconsistent and balky. Dealer diagnosed problem as internal to transmission, requiring replacement. Transmission ordered but not yet received.
Oct 2010 58000 mi	Transmission replaced. Transmission was replaced. Had been diagnosed on a previous visit but had to wait for re-manufactured transmission to be received.
Dec 2010 60000 mi US $149	Service Engine Soon light turned on. After reading the trouble codes myself with a generic OBD-2 tool I repaired the problem by replacing both upstream O2 sensors. Probably only one sensor was actually bad.
Dec 2011 73000 mi US $53	Valve cover gasket had a slight oil leak -- I replaced the gasket set and associated sealing grommets. I'm sure an experienced mechanic could have done this in much less time than the 3 hours it took me.
Dec 2013 96000 mi US $43	There was a small coolant leak where one of the coolant hoses mates with the expansion tank. I replaced the hose ($43). Also preemptively replaced the expansion tank ($85), tank cap ($17), level sensor ($16) and coolant ($21).
Jan 2015	Intake boot had a couple cracks and was replaced.
Mar 2015 109000 mi US $138	Starter failed -- replaced.
Apr 2015 109300 mi US $7	Minor oil leak -- replaced oil filter housing gasket.
Oct 2016 124300 mi US $936	Convertible top motor was noisy and struggling to work. Actuator arms were leaking, so I had them rebuilt by tophydraulics.com and replaced the motor.

BMW Z4 in Ontario, Canada Aug 2008 - Sep 2014
May 2008 37654 mi	replace right front headlight assembly (under warranty)
Jun 2009 40693 mi C $1643	replace roof motor assembly that raises and lowers convertible top

BMW Z4 in Illinois, United States Jan 2008 - Mar 2011
Sep 2008 19008 mi	Failed convertible top motor replaced
Feb 2009 27458 mi	Coolant temperature sensor on lower radiator hose shorted out and was replaced
Sep 2010 40000 mi US $500	FRONT CONTROL ARM BUSHINGS REPLACED

BMW Z4 in Pennsylvania, United States Dec 2010 - Apr 2011
Apr 2011 129000 mi	Needed convertible top motor when sold.

BMW Z4 in Michigan, United States Mar 2015 - May 2019
Sep 2015 70000 mi US $549	Left rear wheel bearing was growling and was replaced
Aug 2018 80000 mi US $2400	Bushings for rear suspension Lower right front control arm replaced.

BMW Z4 in Ontario, Canada Dec 2010 - Jun 2018
Oct 2010 26102 mi C $300	Engine cooling system (radiator, water pump, thermostat, heater core, etc.), repair Battery replaced
Apr 2016 37300 mi C $500	Control arm bushings replaced Valve cover gasket replaced
May 2017 40300 mi C $1200	Change belt - cracks observed and change water pump (anticipatory)

BMW Z4 in Vermont, United States Nov 2014 - Apr 2017
Jun 2015 40000 mi US $500	Control arms, control arm bushings

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BMW Z4 in Florida, United States Dec 2012 - Sep 2018
Jan 2013 92000 mi US $550	I am having coolant temperature problems with the gauge moving from the center to red zone.
Aug 2015 95000 mi US $567	I needed a tune-up.

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BMW Z4 in Georgia, United States Jan 2012 - Jun 2015
Apr 2012 53000 mi US $700	Auto dimming rear view mirror broke
Feb 2013 63200 mi US $450	Thermostat housing
Oct 2013 70200 mi US $4300	Hydraulics for convertible top quit working Instrument cluster panel
Sep 2014 76000 mi US $100	Hydrolics for conververtible top

BMW Z4 in Florida, United States May 2013 - Jun 2014
Dec 2013 77000 mi US $160	Replace the alternator with a new Bosch unit .

BMW Z4 in New Zealand Apr 2012 - Jun 2018
May 2012 53940 mi $200	Petrol cap locking actuator not working. Broken rear boot brake lens. Known fault recorded with the boot lens breaking due to retaining spring pressure overseas, however BMW NZ have no record of this being a problem here.
May 2015 66340 mi $300	faulty tamper alarm sensor on bonnet

BMW Z4 in California, United States Dec 2014 - Aug 2020
Dec 2014 53000 mi US $500	replaced worn accessory belts. Right headlight burned out
Jan 2015 US $1000	Coolant leak. Replaced radiator, and expansion tank.
Mar 2016 63000 mi US $200	FRONT LOWER BODY PANEL HAD SEPARATED FROM THE FRAME. NEW CLIPS WERE REQUIRED TO RE-ATTACH IT.
Dec 2017 76000 mi US $235	Left headlight failed, and was replaced. Also diagnosed two oil leaks, one from valve cover, and one from the oil pan.
May 2018 78000 mi US $1000	Oil leak. Oil pan gasket replaced.

BMW Z4 in New Jersey, United States Jan 2009 - Jun 2011
Mar 2009 46257 mi	Convertible motor failure

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BMW Z4 in Tennessee, United States Jan 2010 - Jun 2011
Feb 2010 160000 mi US $10000	Engine overheated and had to be completely replaced.

BMW Z4 in Florida, United States Oct 2010 - Jan 2011

BMW Z4 in Malaysia Jul 2011 - Aug 2011
Aug 2011 38440 mi $150	compressor belt tensioner spring replaced

BMW Z4 in Georgia, United States Dec 2010 - Jun 2014
Dec 2010 55000 mi US $400	replaced cracked coolant expansion tank and mountng bracket.
Aug 2012 75000 mi US $300	Replaced starter. I did not have to tow the car only because it was sitting in my driveway at the time. It would not make a sound when turning the ignition. Replaced 1) leaking water hose and, 2) leaking thermostat and housing.

BMW Z4 in Texas, United States - Jan 2009
May 2006 28186 mi	Ignition coil replacement
Jul 2006 30419 mi	"Sticky steering issue". Replaced complete EPS steering column assy, endcoded EPS and LWS control units w/ program 22.0.
Jan 2009 55136 mi	After warranty expired but repaired a/c as good will. Defected IHKA. A/C clutch would not engage. Replaced IHKA and encode using prog. 2.32.1

BMW Z4 in Tennessee, United States Apr 2013 - Jun 2018
Jun 2013 114000 mi US $50	Check Engine Light - Cyl 02 misfire. Replaced plug (original) and Coil pack.
Feb 2014 124600 mi	Dreaded P0743 (torque converter). Did initial diag and reset myself and SEL returned in about 30 miles. Took it to the shop, estimate is $700 to 1k. Right now runs and drives fine other than gas mileage dropping by .4 per gal. If it worsens might fix it.
Feb 2015 144000 mi US $50	Replaced leaky oil filter housing gasket, brittle oil pressure switch, and gasket ring.
Apr 2015 148000 mi US $615	Replaced SIM.
Mar 2016 163000 mi US $600	Soft top motor died. Replaced the motor with a new one but it is still slow to respond. It does work, just very slowly.
Sep 2016 170000 mi US $475	Idler pulley broke causing belt to snap and sever radiator hose.

BMW Z4 in Texas, United States Apr 2010 - Oct 2014
Jun 2011 101000 mi US $164	Starter failed, replaced same

BMW Z4 in Oregon, United States Jun 2010 - Jun 2018
Nov 2015 76600 mi US $945	Airbag sensor coded. Replaced driver side B-Piller Airbag Satellite Sensor Replaced one coil pack and all 6 spark plugs
May 2016 81126 mi US $1475	Top will not automatically go to down/up. Possible hydraulic or electric motor failure. Replaced Hydraulic Pump.
May 2017 81300 mi US $1228	Lower intake boot cracked. Coded P0171 lean fuel trim. Replaced lower intake boot.
Nov 2017 82000 mi US $10	Replaced windshield washer pump and grommet/filter.
Mar 2018 83000 mi US $17	Trunk dampers were shot causing trunk lid to close without restraint. Replaced trunk dampers
Apr 2018 83541 mi US $618	Starter failed. Replaced.

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BMW Z4 in Connecticut, United States Jan 2008 - Sep 2012
Dec 2008 28500 mi	No repairs since the purchase of the vehicle in August 2004. Silicone lubricant was used in Nov.'04 to correct a wind leak on the driver's side window that occurred at speeds above 40 mph. Problem solved!
Dec 2009 35000 mi US $1700	Service Engine light was on.Two faults were found;defective fuel breather valve and a defective instrument cluster that was not communicating with the engine computer.Steering no longer "sticky" or "binding".

BMW Z4 in North Carolina, United States Oct 2016 - Nov 2020
Jan 2017 132200 mi US $1025	Oil pan gasket bad Vacuum leak
Jun 2017 133000 mi US $270	Convertible top hydraulic hinge seals broken. Top would not open or close. Removed top, sent hinge to be refurbished. After hinge seals fixed, reinstalled.
Sep 2017 134000 mi	Electronic throttle control errors, car wouldn't stay on, throttle inoperable. Pulled battery, recharged, reinstalled. Throttle started working.
Dec 2017 134000 mi US $60	Battery dies frequently. Diagnostic at shop says the battery and alternator are fine, still trying to find phantom load.
Apr 2018 134000 mi US $180	Battery ultimately failed, still no cause of phantom power draw.

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BMW Z4 in Virginia, United States Jul 2011 - Sep 2012
Aug 2011 88000 mi US $325	replaced radiator, expansion tank, and lower radiator hose with aftermarket parts.

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BMW Z4 in Connecticut, United States May 2009 - May 2011
Aug 2010 58000 mi US $530	Speedometer and all related functions stopped working. Warning lights for DSC, ABS, Brake, and TPMS. Returned for repair of broken wheel speed sensor. New sensor did not fix problem, further diagnosis found shorted out wire was the original cause. 3 more days of diagnosis time plus one day for the actual repair.

BMW Z4 in South Carolina, United States May 2015 - Jul 2016
May 2015 199000 mi US $400	Coolant overflow tank was cracked and leaking. Overflow tank was replaced.

BMW Z4 in Georgia, United States Mar 2014 - Mar 2017
Aug 2014 59600 mi US $104	Back of Driver seat came off. Had to get parts from Germany Navigation system would not extend up. Bolt broke. New unit required.
Apr 2015 62200 mi US $580	Starter died. Had to replace
Feb 2017 66000 mi US $600	Re nav broke. Found new unit out of California for 500. Ordered and had installed locally.

BMW Z4 in Minnesota, United States Apr 2009 - Jun 2022
Jun 2009 38000 mi US $3	broken hose clamp on engine air intake was fixed
Jul 2011 45960 mi US $260	replaced coil springs in rear suspension replaced coil springs in rear suspension
Jun 2012 50000 mi US $110	replace front control arm bushings
Sep 2017 68000 mi US $150	replaced starter
May 2018 69000 mi US $130	replaced valve cover gasket; replaced spark plugs
May 2022 73000 mi US $650	shifter shaft seal - replaced

BMW Z4 in South Carolina, United States Sep 2011 - Sep 2012
Jun 2012 82000 mi US $350	Replace cracked MAF boot Replace coil
Sep 2012 84000 mi US $40	Tighten battery cables

BMW Z4 in Great Britain - Jan 2010
May 2004 26000 mi £150	Rear coilover springs x2
May 2008 42000 mi	Cracked 3rd brake light due to retaining springs being too strong.
Nov 2009 44000 mi £1220	Electric Hood motor
Dec 2009 45600 mi £500	Fuel pump failed on freeway. Fuel pump failure. Scary..
Jan 2010 46000 mi £350	Driver Side Window Regulator

BMW Z4 in Tennessee, United States Dec 2011 - May 2014
Oct 2013 78500 mi US $300	Coolant expansion tank developed a leak. Replaced tank and all hoses.

BMW Z4 in Texas, United States Jun 2013 - Sep 2016
Jun 2013 73000 mi US $450	Oil filter housing was cracked and leaking. had to be replaced.
Mar 2015 88000 mi US $2500	Convertible top motor failed. Replaced motor and all new hydraulics
Jun 2015 89000 mi US $150	Front window seals and plastic wiper covers were rotting due to age. Replaced.
Sep 2015 89000 mi US $50	Driver's drink holder failed. Replaced with OEM part.
May 2016 92400 mi US $250	Thermostat failed Ignition coil failure
Jul 2016 94300 mi US $280	coolant overflow tank cracked resulting in loss of coolant

BMW Z4 in North Carolina, United States Apr 2009 - Nov 2009
Jun 2009 80000 mi US $50	Steering column replaced due to binding

BMW Z4 in Texas, United States - Jun 2009
Jun 2009 17000 mi US $3500	Replaced steering column due to binding.

BMW Z4 in Texas, United States Apr 2009 - Jun 2018
Oct 2009 82000 mi US $150	Large evaporative leak code 0455 - fixed by replacing the gas cap and some vent hoses.
Nov 2011 104000 mi US $270	Original alternator died at 104,000. Replaced with remanufactured alternator, replacement was easy DIY.
May 2012 109400 mi US $100	Very slightly leaky oil separator valve, replaced with ancillary hoses. Pretty simple once I figured out how it's assembled.
Mar 2013 118000 mi	Small oil leak at oil pan gasket; replaced gasket. Proper replacement requires supporting the engine from the top and dropping the subframe - time consuming.
Sep 2013 121000 mi US $40	Secondary air pump died at 121,000 miles triggering check engine light. Replaced pump and hoses.
Nov 2013 122700 mi US $200	Starter went out, replaced with a new unit
Dec 2014 135000 mi	Passenger side window stopped going up when temperatures dropped. Cleaned window regulator, traced problem to bad relay on GM5 module. Followed online instructions to clean relay, works fine now.
Mar 2015 138000 mi	Had to replace valve cover gasket, #1 ignition coil and DISA valve to fix misfiring at idle
Sep 2015 145000 mi US $300	Refreshed suspension and bushings, did front end alignment
Jun 2018 160000 mi US $30	Slight oil leak in the front of the valve cover, replaced gasket

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BMW Z4 in New York, United States Feb 2015 - Jul 2018
Jan 2017 16000 mi US $600	anti freezer leaking from the front of the engine, considering the age I replace, water pump, water out let and all hoses

BMW Z4 in Florida, United States Feb 2011 - Mar 2013
Apr 2011 24000 mi US $11570	AM going to do work myself 4 TPMS modules need to be replace, Brake pressure sensor need to be replaced Thrid Brake light cracked Rear side marker light fell into car fender Radio volume button does not work. was told have to replace radio. bought aftermarket radio nd installed. Better features and sound Headlight housing cracked. BMW told me have to replace headlight housing. Bought aftermarket headlights that are better and for $500 Airbag light is on. Had to spend 135 to diagnose the problem and they told me it was a loose wire. The fixed it & still had the same problem. car ws in shop for 6 days and no loaned car while they tried to determine problem was a faulty mat

BMW Z4 in Oregon, United States Oct 2009 - Sep 2012
Jul 2012 51800 mi US $212	radiator hose

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BMW Z4 in California, United States May 2010 - Jun 2011
Jun 2010 25000 mi US $300
Jul 2010 25300 mi US $7000	Three wheels cracked, and tires required replacing.

BMW Z4 in South Carolina, United States Feb 2010 - Jul 2013
Jun 2010 41000 mi	Chronic right front turn signal failure
Oct 2010 42000 mi	Replaced right front turn signal socket. Now the headlight continually fills with condensation
Apr 2011 45000 mi US $2800	Hydraulic pump for top failed.

BMW Z4 in Georgia, United States Jul 2009 - Apr 2010
Oct 2009 49000 mi US $617	Passenger door latch no longer sensed door was closed. Door would not lock and window stayed down as if door were open. Entire latch assembly had to be replaced.

BMW Z4 in Nova Scotia, Canada Apr 2010 - Oct 2014
Jun 2010 78120 mi C $120	Sec. air system (2760)
Oct 2013 84940 mi C $450	Sec. air fault. Replaced Air pump/motor.

BMW Z4 in Nevada, United States Apr 2012 - Apr 2017
Apr 2015 48000 mi US $850	Coolant leak. Not the radiator, but new thermostat, hoses, temperature sensors, and new overflow bottle cap. I probably got took to the cleaners. I should have looked more for the leak location and possible causes.

BMW Z4 in Qatar Jan 2010 - Jun 2011
Mar 2010 31000 mi ﷼2700	Replacement of fuel injection - 6 nozzles

BMW Z4 in Minnesota, United States Oct 2012 - Sep 2017
May 2015 68300 mi US $650	Valve cover gasket
Jun 2015 69000 mi US $85	Thermostat housing had a micro crack resulting in leaking coolant.
Aug 2017 75000 mi US $200	Replaced worn front brake pads, rotors, amd wear sensors.

BMW Z4 in Florida, United States Apr 2008 - May 2018
Jun 2008 30800 mi	Replace Instrument Carrier. Replace passenger window regulator.
Dec 2008 33000 mi US $92	Replaced battery.
Oct 2009 34800 mi	Replaced driver side window regulator. Replaced DSC pressure sensor.
Aug 2011 36000 mi US $327	Replaced headlights due to fogging.
Sep 2011 40000 mi US $121	Replace CHMSL. The center brake lights crack on these cars. Replaced windshield molding and cowl cover due to cracking and deterioration.
Feb 2013 43000 mi US $132	Replaced starter motor.
Jun 2013 44000 mi US $23	Replaced valve cover gasket.
Jun 2015 47000 mi	A/C compressor failure. I purchased the parts but have yet to have them installed. New compressor, condenser, drier, expansion, valve, and belt tensioner. $900.00 for parts, all new not remanufactured. Expecting labor to be $600.00. Convertible top hydraulic pump failed. Will not repair.
Apr 2016 50000 mi	Code P0741. The ZF 5HP19 transmission is known to have an issue with the shaft seal on the torque converter clutch. Not yet repaired as the SES light turned off after 6 consecutive start/stop cycles.
Dec 2017 53000 mi US $175	Replaced the Battery. It was 2 months shy of 5 years old and would not take a charge.

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BMW Z4 in Texas, United States Jun 2013 - Jul 2014
Apr 2014 58200 mi US $385	replace cowling at the base of the windshield due to deterioration

BMW Z4 in North Carolina, United States Nov 2009 - Jun 2018
Jan 2010 93300 mi US $263	Replace dead battery, Replace air intake tube that cracked causing whistle
Aug 2010 72000 mi US $700	Replaced Right Rear wheel Bearing

BMW Z4 in California, United States Feb 2015 - Dec 2016
Apr 2015 134000 mi US $3798	transmission rebuilt,rear oil seal on engine replaced

BMW Z4 in Ohio, United States Jun 2009 - Dec 2015
Jul 2009 53000 mi US $50	Replaced broken cup holder
Oct 2009 56000 mi US $80	Replaced front windshield cowl
Mar 2014 81000 mi US $115	Replaced Third Brake light which had cracked
Sep 2015 86000 mi US $1200	climate control module replaced

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BMW Z4 in Victoria, Australia Mar 2010 - Jun 2011
Apr 2010 35960 mi A $300	Replaced DISA valve

BMW Z4 in California, United States May 2010 - Feb 2014
Jan 2013 65400 mi US $300	Engine mounts replaced
Jun 2013 77000 mi US $1000	Bushings and suspension arm replaced along with Alignment n oil change

BMW Z4 in New York, United States May 2015 - Sep 2015
Jul 2015 101000 mi US $400	Ball Joints

BMW Z4 in Oregon, United States Dec 2009 - Feb 2017
Mar 2011 31000 mi US $100	cable connecting outside door handle broke (Bowden cable) and had to be replaced. Had to remove entire door handle and interior panels to do so

BMW Z4 in Virginia, United States Apr 2009 - Sep 2013
Aug 2010 67000 mi US $35	Faulty Coil on Plug (COP) on cylinder no. 5. Replaced with new COP
Nov 2011 67200 mi US $150	Coolant leak. Replaced both hoses and coolant temp sensor.

BMW Z4 in New Jersey, United States Nov 2012 - Jul 2022
Dec 2012 71000 mi US $1400	Windshield washer pump replaced. Power top motor had to be replaced.
Aug 2013 72300 mi US $250	Molding above & below windshield was deteriorated. I had them replaced
Dec 2015 76000 mi US $300	cooling system leak. Had radiator replaced
Oct 2017 77000 mi US $16	repaired wires chewed up
Jun 2022 81000 mi US $170	replaced

BMW Z4 in Quebec, Canada Jul 2015 - Oct 2015
Jul 2015 75020 mi	Convertible motor needed to be changed... apparently it's a common issue because of a bad drainage system near the trunk.

BMW Z4 in Korea, South Jun 2012 - Jun 2018
Jul 2017 79980 mi $990	Replaced DISA Valve Replaced struts and shocks
Oct 2017 81220 mi $40	Valve Cover Gasket Replacement
Jan 2018 82543 mi $150	Replaced water pump, thermostat, belts, hoses
Feb 2018 82770 mi $250	Replaced leaking radiator, expansion tank and mounting bracket, cap, transmission thermostat

BMW Z4 in Georgia, United States Apr 2010 - Sep 2016
Jul 2015 81000 mi US $180	Window regulator replacement Brake master cylinder replaced
Jun 2016 84000 mi US $560	Brake master cylinder replacement Center brake light leaking around seal. Allowed water into trunk with collection in battery/electronics area ruining radio amplifier. Replaced light and amplifier.
Sep 2016 84000 mi US $40	Replaced deflection pulley

BMW Z4 in British Columbia, Canada Mar 2011 - Jun 2018
Dec 2011 23560 mi	main computer acting up..cleared it of all messages and seems ok again.
Jun 2012 28520 mi C $67	Convertible top motor failed and squealing brake pads changed for ceramic which fixed problem.
Sep 2016 44640 mi C $140	MAF replaced

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BMW Z4 in Michigan, United States Dec 2009 - Oct 2017
Sep 2009 59000 mi US $40	replaced boot from intake to throttle body
Jul 2010 62000 mi US $1600	Convertible top motor and drive belt replacement
Feb 2011 63900 mi US $145	Replaced cooling expansion tank and hoses
Sep 2011 68000 mi US $1500	Convertible top motor leaking fluid. Replaced seals for hydraulic lines.
Mar 2012 69000 mi US $200	Replaced DISA in intake.
Aug 2012 71300 mi US $1000	HVAC control panel was replaced Seat sensor not working causing airbag light
Sep 2012 72000 mi US $530	replaced front control arms including ball joints and control arm bushings as well as sway bar end links
Aug 2013 74300 mi US $975	replaced oem suspension with aftermarket coilover and shock/springs
Oct 2013 75000 mi US $35	replaced camshaft position sensor

BMW Z4 in Florida, United States Jul 2009 - Mar 2010
Aug 2009 27000 mi US $1534	Convertible top motor went out.

BMW Z4 in New York, United States Apr 2009 - Jun 2012
Aug 2010 27000 mi US $607	Airbag warning light came on. Took to 2 independent repair shops but they could not repair as their computer would not allow reflash. Took to dealer who installed airbag sensor, reflashed computer and problem solved for over $600.

BMW Z4 in Utah, United States Aug 2009 - Jun 2022
Oct 2012 84000 mi US $790	Leaking Radiator
Oct 2015 105300 mi US $247	Bad starter motor
Sep 2016 110000 mi US $100	Passenger door won't unlock with remote. Replaced door latch. Still does work correctly. Will need to replace GM5 module. Had GM5 Module repaired to fix passenger door not opening. $100 plus $9 shipping to have it repaired.
Dec 2016 110000 mi US $46	Oil leak, Replaced valve cover gasket.
Jun 2017 112000 mi US $89	car shakes over 60 MPH. Lower control arm bushings are shot.
Apr 2021 119000 mi US $1100	replace cracked Thermostat housing and all cooling hoses and serpentine belt

BMW Z4 in Puerto Rico Jul 2010 - Jan 2011
Sep 2010 82000 mi US $1400	Replace right rear bearing. Driver door had rattle. dealer pulled panel and found bolt from power window motor had come out and fallen into bottom of door. Dealer said it was not under warranty and $400 ~$600 cost to fix it.

BMW Z4 in Tennessee, United States Sep 2012 - Jun 2018
Oct 2012 77300 mi US $1500	front bushings convertible top motor
Nov 2013 87400 mi US $1500	bushing replacement Top Motor
Jul 2014 99000 mi US $150	Coolant expansion tank leak (common failure, expected at 100k mi per BMW).
Jul 2017 115000 mi US $175	Replaced failed coil.

BMW Z4 in Virginia, United States - Mar 2008
Oct 2007 52000 mi US $30	Replace intake hose
Jan 2008 57000 mi US $900	Replace Air Conditioner Compressor
Mar 2008 61000 mi US $500	Replace Convertible Top Motor

BMW Z4 in Colorado, United States Dec 2014 - Jun 2018
Jul 2015 136500 mi US $250	rear wheel speed sensor shot

BMW Z4 in Victoria, Australia Apr 2014 - Jul 2022
Apr 2015 82660 mi A $150	Car kept overheating, changed coolant, pressure tested system, still overheated. Ran engine and added additional coolant, problem resolved. Suspect air lock in system.
Jun 2017 102920 mi A $150	Coolant level warning light, loss of coolant.
Oct 2017 105400 mi A $150	Replaced bottom radiator hose after discovering a small leak.
Jun 2018 120280 mi A $200	Convertible roof wouldnt retract, dealer repaired faulty fitting and tested all good. Dealer had previously fitted new roof to vehicle.
Sep 2021 142600 mi A $150	Drivers side door latch stopped working replaced with new cables and latch

BMW Z4 in Washington, United States Apr 2007 - Mar 2010
Jun 2007 4000 mi	Instrument cluster fault, replaced - covered by warranty.
Dec 2007 8500 mi US $175	Cracked 3rd brake light (due to cold).

BMW Z4 in Massachusetts, United States Mar 2018 - Jun 2020
Jun 2020 25000 mi US $850	two brake sensors failed --largely due to age

BMW Z4 in Pennsylvania, United States Mar 2010 - Jul 2010
May 2010 47000 mi US $500	Two broken rear springs replaced

BMW Z4 in New South Wales, Australia May 2011 - Oct 2011
Jun 2011 47120 mi A $1000	starter motor stopped working. couldnt start the car.

BMW Z4 in Connecticut, United States Jul 2012 - Dec 2013
Sep 2012 132000 mi US $2300	Stability control unit went, needed a new unit installed, software update
Dec 2012 134000 mi US $2800	stabilizer bar was broken, needed new front shocks, both front wheels were bent and not able to be trued. required a four wheel alignment, new tires for all four wheels

BMW Z4 in Manitoba, Canada May 2011 - Jun 2022
Mar 2012 52700 mi C $8	Seatback wouldn't stay in position, purchased new fitment pins and reinstalled, seems good now
Sep 2013 73160 mi	problem with power door locks
Apr 2014 79360 mi C $475	Bought 2 new actuators after getting completely locked out(thankfully top was down). Both worked perfectly for a week, but drivers door is again not working. Next step either wire in a new relay system or replace the relays on the GM5 module.
Mar 2016 93620 mi	The car has also developed a minor oil leak from the valve cover gasket, more of an annoying smell now and again than anything but I have the parts ordered.
Dec 2016 96100 mi C $95	Replaced water pump.. should have also replaced a few rad hoses on spec but will keep an eye on things.
Jan 2017 87560 mi C $30	Managed to fix the GM5 unit by desoldering and replacing the relays on the circuit board. Not a difficult job, but spend some time on Youtube learning how to desolder components if anyone else tries this.
Feb 2017 96100 mi C $75	Car was leaking coolant over time. Replaced top and bottom rad hoses, and engine coolant temperature sensor. Quite possibly could have gotten away with replacing the o-ring on the sensor and fixed things, but these hoses are getting older. Noticed the car was smoking on the exhaust manifold. Valve cover gaskets failing. Replaced valve cover gaskets, all good now.
Feb 2020 102300 mi	Frozen battery. Removed battery, let it thaw out in shop and slowly recharged it. Installed battery switch to easily disconnect battery for storage.

BMW Z4 in California, United States Jul 2010 - Mar 2014
Dec 2010 70000 mi US $55	Started after sitting a few days, severe engine knocking and vibrations occurred. Might have been ignition coil failure in one cylinder. When drive to shop, engine ran fine. Shop inspected; I decided not to replace since holidays/$ short.
Sep 2011 79000 mi	Rain sensing wipers had never worked since I bought car @ 23000mi. Sensor had separated from glass, only way to fix was new windshield & I didn't. Recently my windshield got large crack and insurance replaced, which also fixed rain sensor!
Jul 2012 90500 mi US $175	Crack in coolant expansion tank. Had to replace tank and associated parts.
Nov 2013 97000 mi US $300	Rotation Rate Sensor AKA Yaw sensor was bad. Figuring this out took forever to diagnose but was an easy repair to replace the part.

BMW Z4 in Florida, United States Apr 2010 - Jun 2012
Jun 2010 83000 mi US $8000	Expansion tank cracked, R&R expansion tank and water hoses Windshield cover cracked and deformed, R&R Winshield cover Driver's door leaking, reatached door membrane. Soft top drainage clog, cleaned drains valve head cover leaking oil R&R cover seal
Aug 2010 83000 mi US $500	Soft top electro hydraulic motor burn out due to water intrusion. This is the second time that the E/H unit has to be replaced due waterd damage
Feb 2011 88000 mi US $90	Head light front auto leveling sensor link broke off. R&R sensor and adjusted head light Replaced soft top electro-hydraulic motor
Jun 2011 94000 mi US $200	Disa valve
Aug 2011 95700 mi	Soft top hydroelectric motor stopped working due to water intrusion, this would be the fourth unit installed
Dec 2011 99000 mi US $1000	Engine oil filter housing "o" ring replaced due to a leak Transmission shaft and linkage seal replaced due to a leak

BMW Z4 in North Carolina, United States Apr 2010 - Sep 2015
Jul 2015 41000 mi US $250	AC stopped blowing cold.

BMW Z4 in California, United States Aug 2010 - Jun 2017
Sep 2012 165000 mi US $300	replaced left and right front control arm bushings left and right sway bars: location points of attachment were cracked, requiring spot welds on both sides.
Jul 2013 177700 mi US $2500	complete transmission rebuild due to a small tranny leak that was left unattended (since 11/2012)
Sep 2014 199000 mi US $1050	left and right lower control arms were removed and replaced. both Left and Right bushings were dry and cracked. I was advised bushings can't be replaced & the arms must be replaced as an assy.
Jun 2015 216000 mi US $590	experienced an intermittent radiator indicator light on the control panel. Finally belt broke requiring a tow and r/r of waterpump *and associated parts were replaced although not broken)
Jan 2016 229000 mi US $1490	removed and replaced differential bearings progressive oil leak required the valve cover gasket to be removed and replaced
Sep 2016 243000 mi	remove and replace cracked Oil housing radiator had a small crack
Mar 2017 255000 mi US $142	Removed & replaced cracked upper radiator hose (OEM)

BMW Z4 in North Carolina, United States Jun 2011 - Dec 2012
Jul 2011 76000 mi US $1200	New electric motor to raise/lower convertible top
Aug 2012 61000 mi US $475	Main gasket around front windshield had aged in the sun

BMW Z4 in South Carolina, United States Sep 2010 - Mar 2013
Sep 2010 99800 mi US $200	I can only select one radio button?? What if two things are broken? Bad alternator. Bad convertible top motor- not repaired 3 weeks apart
Aug 2012 165300 mi US $3000	Bad fuel injectors. All replaced. Leak in coolant fluid lines Engine thermostat faulty, replaced.

BMW Z4 in Tennessee, United States Sep 2010 - Dec 2011
Oct 2010 73000 mi US $400	Windshield Gasket, dry rotted and cracked with pieces falling out. New part ordered from manufacturer in Germany.
Aug 2011 78000 mi US $469	Starter totally failed and was replaced.
Oct 2011 78000 mi US $350	Crack in the Fuel Injection rail leaking gas onto the intake manifold.

BMW Z4 in Virginia, United States Feb 2010 - Apr 2011
Jul 2010 52000 mi US $140	Air bag light came on. Problem was fault triggered by mat in passenger's seat.
Apr 2011 56000 mi US $500	SRS light was on, caused by fault in passenger's seat sensor mat. Installed bypass so car thinks passenger's seat is always occupied. Then had light reset by a shop. Motor for convertible top seized. Will be replacing it myself. Parts total about $500.

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BMW Z4 repairs by problem area

BMW Z4 repair cost distribution

2020 BMW Z4 2dr Convertible

2012 BMW Z4 2dr Hardtop conv.

2011 BMW Z4 2dr Hardtop conv.

2011 BMW Z4 2dr Hardtop conv.

2011 BMW Z4 2dr Hardtop conv.

2009 BMW Z4 2dr Hardtop conv.

2009 BMW Z4 2dr Hardtop conv.

2009 BMW Z4 2dr Hardtop conv.

2008 BMW Z4

2008 BMW Z4 2dr Hatch

2008 BMW Z4 2dr Convertible

2008 BMW Z4 2dr Convertible

2008 BMW Z4 2dr Convertible

2008 BMW Z4 2dr Convertible

2007 BMW Z4

2007 BMW Z4 2dr Hatch

2007 BMW Z4 2dr Hatch

2007 BMW Z4 2dr Hatch

2007 BMW Z4 2dr Convertible

2007 BMW Z4 2dr Convertible

2007 BMW Z4 2dr Convertible

2007 BMW Z4 2dr Convertible

2007 BMW Z4 2dr Convertible

2006.5 BMW Z4 2dr Convertible

2006 BMW Z4 2dr Hatch

2006 BMW Z4 2dr Hatch

2006 BMW Z4 2dr Hatch

2006 BMW Z4 2dr Convertible

2006 BMW Z4 2dr Convertible

2006 BMW Z4 2dr Convertible

2006 BMW Z4 2dr Convertible

2006 BMW Z4 2dr Convertible

2005 BMW Z4 2dr Convertible

2005 BMW Z4 2dr Convertible

2005 BMW Z4 2dr Convertible

2005 BMW Z4 2dr Convertible

2005 BMW Z4 2dr Convertible

2005 BMW Z4 2-door

2004 BMW Z4 2dr Convertible

2004 BMW Z4 2dr Convertible

2004 BMW Z4 2dr Convertible

2004 BMW Z4 2dr Convertible

2004 BMW Z4 2dr Convertible

2003 BMW Z4

2003 BMW Z4 2dr Convertible

2003 BMW Z4 2dr Convertible

2003 BMW Z4 2dr Convertible

2003 BMW Z4 2dr Convertible

2003 BMW Z4 2dr Convertible

2003 BMW Z4 2dr Convertible

BMW Z4 Repair Histories