2006 BMW Z4 BMW Z4 2006

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2006 BMW Z4 repairs by problem area

Engine (28%)

Transmission and Drivetrain (0%)

Brakes and Traction Control (2%)

Suspension and Steering (12%)

Electrical and Air Conditioning (55%)

Paint, Rust, Leaks, Rattles, and Trim (0%)

Other (3%)

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Chart based on 128 repairs.
See TSBs and recalls for the 2006 BMW Z4.

2007 BMW Z4 2dr Hatch

260-horsepower 3.0L I6 6-speed automated manual RWD

18000 mi minor squeaks coming from rear axle 
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. 
56700 mi battery was dieing, needed to be replaced. 
58000 mi

US $1900
Rear mounts 
71000 mi

US $90
Thermostat replaced 
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. 
21700 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. 
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 
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. 
29000 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. 
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. 

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2007 BMW Z4 2dr Hatch

260-horsepower 3.0L I6 5-speed shiftable automatic RWD

88000 mi

US $100
Bad fuel injector replaced with a new one 
90700 mi

US $575
Replaced eccentric shafts sensor and motor 
92000 mi

US $572
Drive shafts Quibo bearing went bad. alternator bearings shot rebuilt for 72 bucks. 
96000 mi

US $255
Leaking filter gasket and mechatronic sleeve.Replaced trans filter and gaskets refilled topped off 

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2007 BMW Z4 2dr Convertible

260-horsepower 3.0L I6 6-speed manual RWD

52500 mi left foglight contained trapped moisture Plastic fitting in retractable headliner had broken, leading to droop in headliner. 
88700 mi

US $700
Audible clunking coming from differential area. Driveshaft had to be dropped to allow lubrication of coupling. Completed inspection II. 
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. 
32300 mi Cyclic vibration at highway speeds. Owners notice the vibration, BMW does not seem able to "Feel" the vibration. 
35000 mi Power Convertible top motor quit and was replaced under warranty. 

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2007 BMW Z4 2dr Convertible

260-horsepower 3.0L I6 6-speed automated manual RWD

49000 mi

US $150
Lines seeping, replaced Headlight washer line broken/leaking 
51000 mi Line to headlight washer fell off. Replaced unnecessarily complicated BMW part with $0.25 hose clamp - problem fixed. 
51700 mi

US $150
Windshield Seal cracked 
57300 mi Rear end leak Coolant hose leak Exterior trim underbody replaced 
62300 mi

US $284
Front left Xenon out 
62700 mi

US $300
Dealer had to fix third party mistake, water pump pulley misaligned, ruined belt and water pump, both replaced. 

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2007 BMW Z4 2dr Convertible

230-horsepower 3.0L I6 5-speed shiftable automatic RWD

62000 mi

US $1300
Transmission pan leaking Coil springs rear replaced 
64500 mi

US $100
Cable making noise 
66000 mi

US $150
Original battery replaced Solenoid dirty, cleaned and changed oil 
33000 mi The xenon light turned off one night.. got it replaced 
37000 mi Computer enter transport mode, no ac, defroster available 
39500 mi Found leak on driveway, traced it to transmission pan, was later told it was the mechatronic Xenon auto level also did not work. 
51000 mi

US $100
Coolant light came on 
52000 mi Check engine came on, rough idle 
52000 mi Engine studdering, pull codes and order coil to test, bad coil on #2 
53000 mi Convertible top will not open or close. Replaced motor 
57000 mi

US $200
Replaced accessory belt Replace brake pads, sensor, caliper, bleeder. Bleed screw broke off, replaced entire caliper. 
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. 

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2007 BMW Z4 2dr Convertible

230-horsepower 3.0L I6 5-speed manual RWD

38000 mi Driver's cup holder replaced. Both bump-stops under hood replaced. 
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. 
85000 mi Power top motor broke again within almost a year. 

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2006 BMW Z4 2dr Hatch

225-horsepower 3.0L I6 6-speed automated manual RWD

61000 mi

US $1800
Constant Oil Pressure Valve leak. Rear differential seals leaking, A/C belt cracked - after 4 years of ownership. 
64000 mi

US $900
Power window regulator broken, repaired by dealer. 

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2006 BMW Z4 2dr Convertible

225-horsepower 3.0L I6 6-speed automated manual RWD

75020 mi Differential seal leaking, straightforward repair with no special issues. 
29000 mi Spring holding the hood up at the front broke. 
37000 mi

US $430
Power steering hose was leaking, replaced. 
37000 mi

US $65
Shift knob came off, replaced with ZHP knob. 
38700 mi

US $250
Rear sway bar end link snapped in half on passenger side. 
41000 mi

US $5
Center storage compartment button broke off. 
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 

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2006 BMW Z4 2dr Convertible

225-horsepower 3.0L I6 5-speed shiftable automatic RWD

35320 mi Transmission pan was leaking, I simply tightened the pan bolts a little and the leak stopped. 
41540 mi

C $300
Transmission pan was leaking. New pan, gasket, filter and ATF 
41540 mi Windshield wipers were erratic. Stopping for several minutes, not shutting off. Took wiper motor out and cleaned grease off electrical contacts. 

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2006 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 5-speed shiftable automatic RWD

26000 mi Valve tapping when cold. Shop replaced all exhaust side hydr. valve pushrods slow automatic transmission fluid leak. 
27000 mi Transmission still leaking when traded after two trips to repair it. 

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2006 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 5-speed manual RWD

24000 mi Pressure plate failure 

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2005 BMW Z4 2dr Convertible

225-horsepower 3.0L I6 6-speed manual RWD

41000 mi

US $223
Passenger side Window regulator failed. Replaced with new window regulator. 
42000 mi

US $392
Replaced rear output shaft bearings. 

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2005 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 5-speed shiftable automatic RWD

77000 mi

US $200
speed sensor in transmission was replaced 
91000 mi

US $90
cooling overflow tank cracked. replaced tank and coolant. 
98000 mi

US $60
replaced trunk lift struts 
99000 mi

US $150
replaced battery 

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2004 BMW Z4 2dr Convertible

225-horsepower 3.0L I6 6-speed manual RWD

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. 
58000 mi Transmission replaced. 
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. 
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. 
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). 
108500 mi Intake boot had a couple cracks and was replaced. 
109000 mi

US $138
Starter failed -- replaced. 
109700 mi

US $7
Minor oil leak -- replaced oil filter housing gasket. 
124700 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. 

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2004 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 5-speed shiftable automatic RWD

114000 mi

US $50
Check Engine Light - Cyl 02 misfire. Replaced plug (original) and Coil pack. 
124700 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. 
144000 mi

US $50
Replaced leaky oil filter housing gasket, brittle oil pressure switch, and gasket ring. 
149000 mi

US $615
Replaced SIM. 
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. 
170000 mi

US $475
Idler pulley broke causing belt to snap and sever radiator hose. 

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2003 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 6-speed automated manual RWD

137400 mi

US $3798
transmission rebuilt,rear oil seal on engine replaced 

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2003 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 5-speed manual RWD

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. 
178300 mi

US $2500
complete transmission rebuild due to a small tranny leak that was left unattended (since 11/2012) 
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. 
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) 
229000 mi

US $1490
removed and replaced differential bearings progressive oil leak required the valve cover gasket to be removed and replaced 
243000 mi remove and replace cracked Oil housing radiator had a small crack 
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 
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 
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 
94000 mi

US $200
Disa valve 
96500 mi Soft top hydroelectric motor stopped working due to water intrusion, this would be the fourth unit installed 
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 

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2006 BMW Z4 Transmission Problems

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