Which parts fail
Components named in complaints (power steering, steering column, rack and pinion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2004 BMW Z4 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2004 BMW Z4. The contact stated while driving at various speeds in warm weather, the steering wheel was difficult to turn. The contact stated no warning light was illuminated. The contact was able to park on the side of the road. The contact continued driving with caution to his destination. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 125,000.
I own a 2004 BMW Z4 2.5i I bought it used in 2010 with 22,000 miles. It was on a cool December day when I test drove the car and I loved it. No sign of any steering problems. On a warmer day after driving for a while I suddenly experienced a unexpected binding of the steering and almost binding ended up steering into oncoming traffic. This really scared me and I started investigating. Yes, this is a known safety defect, but BMW doesn't do anything about it. NHTSA, which supposed to protect us from unsafe vehicles, did not do their job either. I am a retired Automotive engineer with Fiat-Iveco and NHTSA made my company recall vehicles for much less. The defect gets worse in hot weather and I don't let my son, friends or anybody else drive the vehicle, as I am afraid that they could get hurt, aside from a liability issue on my side. …
The electric steering gets sticky when hot. It feels locked in its position and requires extra force to unstick, once its past the sticking point it over corrects and causes the vehicle to swerve. This failure seems to be quite common and is well known. It seems to be a manufacturing defect inside the electric steering column. I believe it has already been investigated by NHTSA but a recall has not yet been called to protect the consumer. This failure only happens when it is hot or the heater is on in the car, there is no warning before it occurs. Thank you for your attention in this matter. Please help by re-investigating this common failure.
The steering sticks, in warmer weather, at freeway speeds. Continuously trying to unstick the steering wheel, with the possibility of overcorrecting, at freeway speeds, could present a safety hazard. Yes, the alignment company recognized the problem during their post-alignment test drive. The vehicle has not been inspected by "manufacturer, police, or insurance representatives." No warning lamps/lights/messages on dash. However, if you google 2004 BMW with sticky steering, you will find NUMEROUS accounts of this happening to other owners of similar vehicles (specifically 2003-2005 Z4).
The the vehicle sits out in the sunlight or its warm outside (usually over 80F) the steering wheel will get very notchy and "stick" towards the center position at highway speeds. This makes minor steering corrections at highway speeds very difficult to make without unintentionally leaving your own lane possibly into another car. This is very much a safety issue! This has happened on multiple occasions since the week after I got it in May 2022. Tonight its only 65 degrees and it was acting up (this is 2 hours after sunset).
The electric steering gets sticky when very often. It feels locked in its position and requires extra force to unstick, once its past the sticking point it over corrects and causes the vehicle to swerve. This failure seems to be quite common and is well known. It seems to be a manufacturing defect inside the electric steering column. I believe it should be investigated by NHTSA. The last time it happened my car went off onto the soft shoulder. The manufacturer should repair the steering. It's a widely known issue.
Whenever the temperature Is above 80 degrees the steering becomes very stiff with no power assist due to a design defeat within the steering column. The vehicle because very dangerous to drive due to the lack of steering control. This problem effects all BMW Z4s from 2003 to 2006. BMW wants the owners to have the dealer replace the steering column for $6,000. Please assist us in having BMW issue a Recall for a very dangerous situation they created with a defectively designed steering column.
Component or system failed: Steering Column. It is available for inspection. Safety or the safety of others put at risk: When driving the steering column will lock or stick into place until it is forced back into a normal driving position. This consistently occurs when driving on a corner or making slight steering adjustments on a straight road. Has the problem been reproduced by a dealer: UNKNOWN Has the vehicle or component been inspected: UNKNOWN Were there any warning lamps: None
Twice this month, while operating the vehicle, the power steering completely stopped functioning, causing the vehicle to be almost uncontrollable. No prior warning light. When I purchased the vehicle in 2018, the same problem occurred and the dealer replaced the steering column under warranty. In researching online I find that this is a common problem with this model. I am surprised to find that there is no recall notice for what is a major safety concern.
The steering wheel is "sticky" and has play in it when you are driving it. It appears to have steering drift. I feel this car is not safe to drive and is hard to control. No warning messages have come on. When I searched online, it appears that many others are having trouble with their 2004 z4 steering.
NHTSA investigations
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…
Steering complaints in other Z4 years
Frequently asked questions
How common are steering problems on the 2004 BMW Z4?
NHTSA has 378 complaints about the steering of the 2004 BMW Z4, 92% of the model year's 411 complaints. The component named most often is electric power assist system (9 mentions).
Is there a recall for 2004 BMW Z4 steering problems?
No. NHTSA lists no steering recall for the 2004 BMW Z4, though it has 1 recall for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2004 BMW Z4 steering problems start?
Half of the complaints with a recorded mileage happened before about 46,000 miles, and 19% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 1 fire and 0 injuries to steering problems on this model year. If you notice symptoms, have the car checked before driving further.
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.