2005 BMW Z4 BMW Z4 2005

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2005 BMW Z4 repairs by problem area

Engine (36%)

Transmission and Drivetrain (2%)

Brakes and Traction Control (0%)

Suspension and Steering (16%)

Electrical and Air Conditioning (30%)

Paint, Rust, Leaks, Rattles, and Trim (11%)

Other (5%)

Chart based on 88 repairs.
See TSBs and recalls for the 2005 BMW Z4.

2005 BMW Z4 repair cost distribution

$2500+ (5%)

$1000 - $2499 (15%)

$500 - $999 (9%)

$100 - $499 (33%)

< $100 (37%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 75 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2005 BMW Z4 2dr Convertible

225-horsepower 3.0L I6 6-speed manual RWD

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 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 Illinois, United States
Mar 2012 - Jun 2018
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 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 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 - Sep 2018
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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2005 BMW Z4 2dr Convertible

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

BMW Z4 in North Carolina, United States
Oct 2015 - Jun 2018
Oct 2015

49000 mi

US $500
Spark plugs all six blew 
Jan 2016

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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2005 BMW Z4 2dr Convertible

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

BMW Z4 in Idaho, United States
Jun 2013 - Jun 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. 
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 California, United States
Oct 2015 - Jun 2018
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 
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 2018
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 Manitoba, Canada
Sep 2011 - Dec 2013
Aug 2013

28920 mi

C $65
Passenger airbag/occupancy sensor replaced 
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 

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2005 BMW Z4 2dr Convertible

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

BMW Z4 in Virginia, United States
Sep 2011 - May 2018
Jan 2011

36 mi
Everything else, repair Replaced dead battery  
Jan 2013

41500 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 New York, United States
Jun 2013 - May 2014
May 2014

56000 mi

US $1200
Top motor needed to be replaced. 
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 

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2005 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 5-speed manual RWD

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 Pennsylvania, United States
Sep 2011 - Jan 2014
Jan 2014

49000 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
Jul 2015 - Jun 2018
Mar 2016

97000 mi

US $630
Starter motor replaced 

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2005 BMW Z4 2-door

6-cylinder automatic 2WD

BMW Z4 in Pennsylvania, United States
Nov 2011 - Mar 2018
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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2004 BMW Z4 2dr Convertible

225-horsepower 3.0L I6 6-speed manual RWD

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 Michigan, United States
Mar 2015 - Jun 2018
Sep 2015

70000 mi

US $549
Left rear wheel bearing was growling and was replaced 
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 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 
BMW Z4 in Pennsylvania, United States
Dec 2010 - Apr 2011
Apr 2011

129000 mi
Needed convertible top motor when sold. 
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

68200 mi
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 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 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 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 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 

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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 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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2004 BMW Z4 2dr Convertible

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

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 Florida, United States
May 2013 - Jun 2014
Dec 2013

77000 mi

US $160
Replace the alternator with a new Bosch unit . 
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 California, United States
Dec 2014 - Jun 2018
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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2004 BMW Z4 2dr Convertible

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

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 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 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. 
BMW Z4 in Texas, United States
Apr 2010 - Oct 2014
Jun 2011

101000 mi

US $164
Starter failed, replaced same 
BMW Z4 in Florida, United States
Oct 2010 - Jan 2011
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. 

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2004 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 5-speed manual RWD

BMW Z4 in North Carolina, United States
Oct 2016 - Jun 2018
Jan 2017

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. 
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". 

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2003 BMW Z4

Engine not specified

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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2003 BMW Z4 2dr Convertible

225-horsepower 3.0L I6 6-speed manual RWD

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 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 Minnesota, United States
Apr 2009 - Jun 2018
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 
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 
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 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 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 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 2009
Jun 2009

17000 mi

US $3500
Replaced steering column due to binding. 
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. 

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2003 BMW Z4 2dr Convertible

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

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 
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 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 

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2003 BMW Z4 2dr Convertible

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

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 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 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. 
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 Qatar
Jan 2010 - Jun 2011
Mar 2010

31000 mi

﷼2700
Replacement of fuel injection - 6 nozzles 

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2003 BMW Z4 2dr Convertible

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

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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2003 BMW Z4 2dr Convertible

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

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 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 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 
BMW Z4 in New Jersey, United States
Nov 2012 - Jun 2018
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 
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 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 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 New York, United States
May 2015 - Sep 2015
Jul 2015

101000 mi

US $400
Ball Joints 
BMW Z4 in Victoria, Australia
Mar 2010 - Jun 2011
Apr 2010

35960 mi

A $300
Replaced DISA valve 
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 

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2003 BMW Z4 2dr Convertible

184-horsepower 2.5L I6 5-speed manual RWD

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. 
BMW Z4 in Utah, United States
Aug 2009 - Jun 2018
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. 
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 Florida, United States
Jul 2009 - Mar 2010
Aug 2009

27000 mi

US $1534
Convertible top motor went out. 
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 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 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 Victoria, Australia
Apr 2014 - Jun 2018
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. 
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 Colorado, United States
Dec 2014 - Jun 2018
Jul 2015

136500 mi

US $250
rear wheel speed sensor shot 
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 Pennsylvania, United States
Mar 2010 - Jul 2010
May 2010

47000 mi

US $500
Two broken rear springs replaced 
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 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 Manitoba, Canada
May 2011 - Jun 2018
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

78200 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. 
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 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 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 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 North Carolina, United States
Apr 2010 - Sep 2015
Jul 2015

41000 mi

US $250
AC stopped blowing cold. 

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2005 BMW Z4 Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2005 BMW Z4 problems occur, check out our car reliability stats.