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 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 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 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 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 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

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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2005 BMW Z4 2dr Convertible

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

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 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 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 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 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 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 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 

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2005 BMW Z4 2dr Convertible

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

BMW Z4 in Nevada, United States
Sep 2011 - Jun 2018
Jan 2013

77000 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. 
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 

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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

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
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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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.