| 1 | 0 | 3 | 4 | 3 | 4 |
2004 BMW Z4 repairs by problem area
Engine (38%)
Transmission and Drivetrain (5%)
Brakes and Traction Control (1%)
Suspension and Steering (9%)
Electrical and Air Conditioning (27%)
Paint, Rust, Leaks, Rattles, and Trim (16%)
Other (4%)
Chart based on 81 repairs.
2004 BMW Z4 repair cost distribution
$2500+ (3%)
$1000 - $2499 (13%)
$500 - $999 (21%)
$100 - $499 (28%)
< $100 (35%)
Chart based on 71 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2004 BMW Z4 2dr Convertible
225-horsepower 3.0L I6 6-speed manual RWD
| BMW Z4 in Ontario, Canada Dec 2010 - Jun 2018 | |||
| Oct 201026102 miC $300 | Engine cooling system (radiator, water pump, thermostat, heater core, etc.), repair Battery replaced | ||
| Apr 201637300 miC $500 | Control arm bushings replaced Valve cover gasket replaced | ||
| May 201740300 miC $1200 | Change belt - cracks observed and change water pump (anticipatory) | ||
| BMW Z4 in Alabama, United States Aug 2010 - Mar 2018 | |||
| Sep 201057000 miUS $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 201058000 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 201060000 miUS $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 201173000 miUS $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 201396000 miUS $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 2015114800 mi | Intake boot had a couple cracks and was replaced. | ||
| Mar 2015109000 miUS $138 | Starter failed -- replaced. | ||
| Apr 2015109300 miUS $7 | Minor oil leak -- replaced oil filter housing gasket. | ||
| Oct 2016124300 miUS $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 Vermont, United States Nov 2014 - Apr 2017 | |||
| Jun 201540000 miUS $500 | Control arms, control arm bushings | ||
| BMW Z4 in Michigan, United States Mar 2015 - May 2019 | |||
| Sep 201570000 miUS $549 | Left rear wheel bearing was growling and was replaced | ||
| Aug 201880000 miUS $2400 | Bushings for rear suspension Lower right front control arm replaced. | ||
| BMW Z4 in Ontario, Canada Aug 2008 - Sep 2014 | |||
| May 200837654 mi | replace right front headlight assembly (under warranty) | ||
| Jun 200940693 miC $1643 | replace roof motor assembly that raises and lowers convertible top | ||
| BMW Z4 in Washington, United States - Feb 2008 | |||
| Feb 200825 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 Illinois, United States Jan 2008 - Mar 2011 | |||
| Sep 200819008 mi | Failed convertible top motor replaced | ||
| Feb 200927458 mi | Coolant temperature sensor on lower radiator hose shorted out and was replaced | ||
| Sep 201040000 miUS $500 | FRONT CONTROL ARM BUSHINGS REPLACED | ||
| BMW Z4 in Minnesota, United States Jan 2011 - Jun 2012 | |||
| Jul 201132000 miUS $900 | Windshield wiper and headlight sensor failed, replaced windshield and sensor | ||
| May 201236000 miUS $400 | Cracked brake line | ||
| BMW Z4 in Florida, United States Feb 2010 - Nov 2010 | |||
| Apr 201044700 miUS $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 Pennsylvania, United States Dec 2010 - Apr 2011 | |||
| Apr 2011129000 mi | Needed convertible top motor when sold. | ||
| BMW Z4 in Ontario, Canada Oct 2010 - Mar 2013 | |||
| Sep 201266340 miC $200 | Replaced both the Intake Air Adjustment Unit/DISA Valve and the Lower Intake Boot due to wear | ||
2004 BMW Z4 2dr Convertible
225-horsepower 3.0L I6 6-speed automated manual RWD
| BMW Z4 in Florida, United States Dec 2012 - Sep 2018 | |||
| Jan 201392000 miUS $550 | I am having coolant temperature problems with the gauge moving from the center to red zone. | ||
| Aug 201595000 miUS $567 | I needed a tune-up. | ||
2004 BMW Z4 2dr Convertible
225-horsepower 3.0L I6 5-speed shiftable automatic RWD
| BMW Z4 in Florida, United States May 2013 - Jun 2014 | |||
| Dec 201377000 miUS $160 | Replace the alternator with a new Bosch unit . | ||
| BMW Z4 in New Zealand Apr 2012 - Jun 2018 | |||
| May 201253940 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 201566340 mi$300 | faulty tamper alarm sensor on bonnet | ||
| BMW Z4 in New Jersey, United States Jan 2009 - Jun 2011 | |||
| Mar 200946257 mi | Convertible motor failure | ||
| BMW Z4 in Georgia, United States Jan 2012 - Jun 2015 | |||
| Apr 201253000 miUS $700 | Auto dimming rear view mirror broke | ||
| Feb 201363200 miUS $450 | Thermostat housing | ||
| Oct 201370200 miUS $4300 | Hydraulics for convertible top quit working Instrument cluster panel | ||
| Sep 201476000 miUS $100 | Hydrolics for conververtible top | ||
| BMW Z4 in California, United States Dec 2014 - Aug 2020 | |||
| Dec 201453000 miUS $500 | replaced worn accessory belts. Right headlight burned out | ||
| Jan 2015US $1000 | Coolant leak. Replaced radiator, and expansion tank. | ||
| Mar 201663000 miUS $200 | FRONT LOWER BODY PANEL HAD SEPARATED FROM THE FRAME. NEW CLIPS WERE REQUIRED TO RE-ATTACH IT. | ||
| Dec 201776000 miUS $235 | Left headlight failed, and was replaced. Also diagnosed two oil leaks, one from valve cover, and one from the oil pan. | ||
| May 201878000 miUS $1000 | Oil leak. Oil pan gasket replaced. | ||
2004 BMW Z4 2dr Convertible
184-horsepower 2.5L I6 5-speed shiftable automatic RWD
| BMW Z4 in Texas, United States - Jan 2009 | |||
| May 200628186 mi | Ignition coil replacement | ||
| Jul 200630419 mi | "Sticky steering issue". Replaced complete EPS steering column assy, endcoded EPS and LWS control units w/ program 22.0. | ||
| Jan 200955136 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 Malaysia Jul 2011 - Aug 2011 | |||
| Aug 201138440 mi$150 | compressor belt tensioner spring replaced | ||
| BMW Z4 in Florida, United States Oct 2010 - Jan 2011 |
| BMW Z4 in Tennessee, United States Apr 2013 - Jun 2018 | |||
| Jun 2013114000 miUS $50 | Check Engine Light - Cyl 02 misfire. Replaced plug (original) and Coil pack. | ||
| Feb 2014124600 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 2015144000 miUS $50 | Replaced leaky oil filter housing gasket, brittle oil pressure switch, and gasket ring. | ||
| Apr 2015148000 miUS $615 | Replaced SIM. | ||
| Mar 2016163000 miUS $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 2016170000 miUS $475 | Idler pulley broke causing belt to snap and sever radiator hose. | ||
| BMW Z4 in Texas, United States Apr 2010 - Oct 2014 | |||
| Jun 2011101000 miUS $164 | Starter failed, replaced same | ||
| BMW Z4 in Oregon, United States Jun 2010 - Jun 2018 | |||
| Nov 201576600 miUS $945 | Airbag sensor coded. Replaced driver side B-Piller Airbag Satellite Sensor Replaced one coil pack and all 6 spark plugs | ||
| May 201681126 miUS $1475 | Top will not automatically go to down/up. Possible hydraulic or electric motor failure. Replaced Hydraulic Pump. | ||
| May 201781300 miUS $1228 | Lower intake boot cracked. Coded P0171 lean fuel trim. Replaced lower intake boot. | ||
| Nov 201782000 miUS $10 | Replaced windshield washer pump and grommet/filter. | ||
| Mar 201883000 miUS $17 | Trunk dampers were shot causing trunk lid to close without restraint. Replaced trunk dampers | ||
| Apr 201883541 miUS $618 | Starter failed. Replaced. | ||
| BMW Z4 in Tennessee, United States Jan 2010 - Jun 2011 | |||
| Feb 2010160000 miUS $10000 | Engine overheated and had to be completely replaced. | ||
| BMW Z4 in Georgia, United States Dec 2010 - Jun 2014 | |||
| Dec 201055000 miUS $400 | replaced cracked coolant expansion tank and mountng bracket. | ||
| Aug 201275000 miUS $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. | ||
2004 BMW Z4 2dr Convertible
184-horsepower 2.5L I6 5-speed manual RWD
| BMW Z4 in Connecticut, United States Jan 2008 - Sep 2012 | |||
| Dec 200828500 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 200935000 miUS $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 2017US $1025 | Oil pan gasket bad Vacuum leak | ||
| Jun 2017133000 miUS $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 2017134000 mi | Electronic throttle control errors, car wouldn't stay on, throttle inoperable. Pulled battery, recharged, reinstalled. Throttle started working. | ||
| Dec 2017134000 miUS $60 | Battery dies frequently. Diagnostic at shop says the battery and alternator are fine, still trying to find phantom load. | ||
| Apr 2018134000 miUS $180 | Battery ultimately failed, still no cause of phantom power draw. | ||
2003.5 BMW Z4
Engine not specified
| BMW in New South Wales, Australia May 2011 - Oct 2011 | |||
| Jun 201147120 miA $1000 | starter motor stopped working. couldnt start the car. | ||
See TrueDelta's information for all Hatchbacks and Convertibles.
See TrueDelta's information for all BMW models.
