Skip the auto shop - Our mechanics make house calls

Q: Airbag & seat belt signs come on and off continually

asked by on

A few days after purchasing the car and driving it, the airbag on the passenger side kept turning off and on. Also, the seat belt sign started coming on and off, too. I think there is probably something wrong with the sensor. When I took my car to get it fixed, they only fixed the wiring, which did not solve the problem. The same thing still occurs with the airbag and seat belt signs. What is causing this problem and what will repair it? Thanks.

A: There is a sensor in the seats of your BMW ...

There is a sensor in the seats of your BMW 545i that signals the computer there is someone in the seat and will turn on or off the passenger air bag. If you have leather seats that are not soft anymore, or you put something in the front seat it may cause the sensor to think someone is in the seat. You may need to have the sensor repaired or the seat repaired to correct the condition. If you need help figuring out how to repair this, a certified technician from YourMechanic can come to your home or office to diagnose these signs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Engine knocking.

The most common noise like this is the serpentine belt tensioner knocking noise. The belt and tensioner replacement is the most common fix.

Q: Dome light won't turn on unless you press the unlock button for the car. And the airbag light stays on, code 33

Code 33 is a passenger side air bag fault. It can also be the seat belt pre-tensioner. The air bag system can be touchy. If you mishandle anything correctly, an air bag can explode. Have a certified technician, like one...

Q: Transmission malfunction error code

Hello. You will need to know if your BMW appears to be running normally, or if there are noticeable problems. If there are problems, take it immediately to a qualified technician to diagnose before more damage can happen. Regardless, you...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...