Most common 2005 BMW Z4 problems
Share of the 191 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
BMW Z4 complaints by model year
Best Z4 years: 2012, 2015, 2021. Years to avoid: 2011, 2003, 2004, 2005, 2006. Compare all years →
NHTSA defect investigations
Federal safety investigators have looked into 2 possible defects involving the 2005 BMW Z4:
Sticky Steering
ODI has evaluated the sticky steering condition, which included reviews of complaints and warranty claims, interviews and surveys of owners of complaint vehicles, road tests of complaint vehicles, and a review of BMW's engineering and test data.ODI found the sticky steering condition does not result in a significant steering effort, thus the impact on the driver's ability to control the vehicle does not appear to be…
BMW airbag light illumination
BMW is conducting a safety recall campaign on approximately 200,000 my04 through my06 subject vehicles built through 11/30/05 to correct the front passenger seat air bag occupant detection mat. The specific vehicles included in the recall aremy04- 06/ 5-series with standard and sport seats, my04-06/ x3-series and my06/ 3-series with sport seats.
What 2005 BMW Z4 owners say
Steering all 172 →
Owned the vehicle since purchased new in July 2005. Warranty expired ~2010. Approximately 2014, symptoms started. In the heat -- 80F - 90F degree sunny day -- response of the steering wheel became notchy, as though requiring a push to get the wheel past a notch. After some time the symptom disappeared, until the (black color) car was again heated in hot sun of a 90F day. It seemed incidental. I was no longer commuting and drove the car less in 2015-2019 period, so noticed it less often. 2020 was Covid-19 so car was barely driven until Spring 2021. Now in hot Summer 2021, the symptom is back and much stronger. Again, only after the car has been baked in hot sunlight for some period. Both directions (L and R) moving the wheel off centerline, requires pushing past a "notch" type feeling...it is NOT a smooth turn of the steering wheel. …
This 2005 BMW Z3 was bought from a dealer who sold the car to the original owner and maintained it. The car has 45,000 miles on it, and I am the second owner. I have only owned the car for one month. Yesterday was the first day of 80 degree weather, and the steering is now "sticking". It will not track in a straight line and needs constant corrections from side to side to compensate for the problem. If you do not pay close attention and correct the steering input, you will go off the road. I have now read about others with the same problem, and that BMW is aware of its design flaw. There should be a recall issued for them to correct the problem. My understanding is that it is a costly repair, and it will most likely reoccur after the fix. Needless to say, I am very disappointed with the dealer as I feel they knowingly sold me this car with the steering problem. …
Air bags
My driver side seatbelt sensor suddenly would randomly detect no seatbelt despite being buckled and then the steering wheel airbag deployed into me while I was reversing the car under 2mph. I suffered burns and bruises, hearing loss, and disorientation from the deployed airbag. I could have broke my nose, or my wrist or fingers. BMW dealership refused covering towing and inspection. BMW airbags across multiple models and years have experienced recalls and issues. Seatbelt detection sensor blinked before airbag deployed into me.
Tl* the contact owned a 2005 BMW Z4. While the contact's husband was driving 65 MPH, the vehicle hydroplaned and crashed into the rear of the preceding vehicle. The air bag deployed with metal shards and a metal rod going through the hand of the driver. The contact also sustained minor burns on the hand and feet from the gases when the air bag deployed. Medical attention was sought several days after the crash. A police report was filed. The vehicle was destroyed and towed to an independent facility. A dealer was not contacted. The manufacturer was notified of the failure. The approximate failure mileage was 54,000.
Electrical system
Bought the 2005 z-4 BMW used from a dealer in high point nc. Drove it and enjoy driving until the warm weather. The steering sticks to a point of being dangerous. To compensate, I steer to the left and car pulls to the left then I bring the steering back towards the center and feel it sticking so I compensate by steering to the right. The whole time down the highway I fear for my life driving this car. I really had to concentrate to keep the car from steering off the road and I'm sure it appears I'm driving erratically to others on the road. The warm weather will soon be here in north carolina and I'm just scared to drive it. The car otherwise is beautiful. …
Heater/air conditioner stopped blowing. Took to local shop and found multiple wires melted. Concerned due to fire risk so researched and found this is a major issue with many now recalled bmws-mine is not included in the recalls but it's highly suspicious that I'm having the apparent exact same issue as those vehicles being recalled. I saw white smoke coming from under my hood and smelled a burning odor a few months ago so drove straight home and popped the hood-saw no additional smoke but did smell some residual burning odor but nothing was visible. This happened approximately 2 other times but nothing was ever found and it was assumed it was a spillage or overflow. Wasn't until recently when the heater and A/C stopped blowing that further investigation was done. Thank goodness no fire started. …
2005 BMW Z4 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.5L 6-cyl | 5-speed manual | RWD | 18 / 26 / 21 |
| 2.5L 6-cyl | 5-speed automatic | RWD | 18 / 26 / 21 |
| 3.0L 6-cyl | 6-speed manual | RWD | 18 / 27 / 21 |
| 3.0L 6-cyl | 6-speed automatic | RWD | 18 / 27 / 21 |
| 3.0L 6-cyl | 5-speed automatic | RWD | 17 / 25 / 20 |
EPA ratings. Class: Sports car.
Frequently asked questions
Is the 2005 BMW Z4 a good car?
Based on 191 owner complaints filed with NHTSA, the 2005 Z4 rates avoid: 7.4× as many complaints as a typical year of the Z4 at the same age. It is one of the Z4 years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2005 BMW Z4?
The steering — 172 complaints, 90% of all complaints for this model year, most often about column. Next are the air bags (10) and electrical system (6).
How many recalls does the 2005 BMW Z4 have?
NHTSA lists no recalls for the 2005 BMW Z4. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the BMW Z4?
The best years by complaints, compared at the same age, are 2012, 2015 and 2021. Years to avoid or approach with caution: 2011, 2003, 2004, 2005 and 2006. See the full BMW Z4 years comparison.
At what mileage do 2005 BMW Z4 problems happen?
The median mileage reported in complaints is about 47,000 miles; 53% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.