Airbag complaints by model year
Which parts fail
Components named in complaints (front, side and curtain air bags, sensors and inflators).
Mileage when the problem started
What owners report
A failed front passenger air bag seat sensor mat causes the air bag warning lamp and the passenger air bag 'on-off' lamp to be illuminated simultaneously. In August 13, 2008, BMW issued a voluntary recall involving front passenger seat sensor mat on U.S.A. Model bmws regarding the front passenger air bag seat sensor mat involving approximately 200,000 model year 2004-06 vehicles. My similarly affected 2008 vehicle was not included in the recall. The recall also states that in this situation, BMW recommends customers not to use the front passenger seat and have the vehicle serviced immediately. When I called my local BMW dealer, I was advised of a $152 shop diagnosis fee and a likely repair cost of $1800. This is a prohibitive cost for a factory defect on a 73 year old senior citizen living on social security.
'the vehicle was purchased used from a dealer in October 2012, with about 30600 miles;, current mileage is about 57400. The airbag disabled light in instrument cluster started acting up several months ago; now it is on at all times, whether or not a passenger is in the seat or the car is in motion or stopped. A scan of the vehicle shows a defective passenger occupancy sensor / mat. Resetting the light with the scan tool does not fix the problem. Many 2008 BMW models were recalled for a similar problem, but not the Z4, even though there are several complaints listed here. The local BMW dealer wants $152.00 shop diagnosis fee and a replacement mat switch could be $1800.00. This is a safety issue known by the manufacturer from the beginning and should be included in the recall.
While in motion the vehicle accelerates for 2 to 3 seconds periodically on highway and in city. While in motion at low speed and when stationary after driving only a few miles the vehicle engine shuts down. While in motion at high speed the vehicle engine stutters badly but does not turn off. The ignition switch has to be tuned off and then on again, and then the engine turns over and I'm able to continue to drive it. Both valve cover gaskets leak oil onto the engine. The worst was front of the engine which has been replaced. There is an electrical issue: seatbelts don't retract automatically and are not working properly, get caught in the door. Both e-keys have stopped working and not able to be reprogrammed for en. The horn does not work at all. The airbag warning light remains on at all times. The cig lighter and seat warmers are working fine. …
'airbags have never been deployed according to carfax history. I was commuting home, waiting at a stop light, when I heard a very loud pop. At first, I thought something had fallen on to my car because the dash did not explode. Reveraling the airbag. I started to smell smoke coming from the passenger side and noticed that the airbag light was on. I wasn't able to start the car given the battery safety terminal disengaged. I am lucky that the driver side airbag didn't deploy, or even deploy while I was driving.
Front passenger air bag sensor warning light on - passenger air bag will not function in event of collision. Passenger air bag sensor warning code can not be reset. The car air bag system has never been activated by collision. The front passenger air bag warning light first appeared when starting the car in garage and is not associated with any collision events. It appears to be linked to similarly reported BMW models recalls involving the front passenger seat air bag sensor mat failures, which requires seat air bag sensor mat replacement. The problem is it is not clear if current air bag sensor mat recalls include and cover the BMW 2006 Z4 passenger air bag seat sensor mat replacement. The car was purchased from BMW dealer as a pre-owned certified car under full warranty. …
My car had approximately 65K miles on it when the light on the dashboard indicated an issue. It was manufactured in 08/06. Reading from the computer indicated a passenger occupancy mat failure. BMW extended the warranty for 10 years through model year 05 but won't do anything for 2006. I called BMW USA and escalated it. They called me back and stated it will not be covered. I am concerned that this May prevent the airbag from operating in case of a collision for the passenger. There are many complaints about the 2006 model occupancy mat with this my and I think BMW should be forced to cover this safety hazard. The car was purchased from BMW dealer as a pre-owned certified car under full warranty. The dealer would not address repairs under the current recalls. This should be covered the same way as previous model year Z4 vehicles. …
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.
Related recalls (1)
Air bags
On certain passenger vehicles, incompatible electronic air bag system processors May have been installed.
Remedy: Dealers will inspect and, if necessary, replace the air bag system processors. The recall began June 11, 2004. Owners should contact BMW at 1-800-831-1117.
NHTSA investigations
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.
Frequently asked questions
Which BMW Z4 years have airbag problems?
By NHTSA complaints, the 2003 (31), 2004 (18), 2006 (14), 2005 (10) and 2008 (8) model years. Airbag complaints make up 7% of all complaints for the 2003.
Is there a recall for BMW Z4 airbag problems?
Yes — 1 recall, including 04V-247 (air bags, May 24, 2004). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do BMW Z4 airbag problems start?
Across all years, half of the complaints with a recorded mileage happened before about 58,000 miles; 38% happened before 50,000 miles.
What part fails most often?
Owners most often name the sensor › occupant classification (6 mentions), followed by the frontal (4).
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.