wokingBigBoy

Hi,

I had my restraint system warning reset a couple of times it comes up with a error B13B2 something about a ignition circuit.....

Does anyone know what the problem is??


Thanks in advance!


Car: BMW E61 56 plate.

535DA_M

Hi,

Same problem my 535d, and same error B13B2.
Does anyone know ?

Kuul4

Seems to be quite common problem: https://5series.net/forums/topic/491...ure-passenger/

Liam

Had the same issue already 2x in 6 months. In my case it meant that the airbag sensor mat in the passenger seat was faulty. You can have the mat replaced by the dealer (expensive, about 400?) or buy an airbag sensor bypass on Ebay.

Cheers & good luck,
Liam

wokingBigBoy

My problem was a loose positive battery terminal. I smoothed the terminals out and regreased. After a reset the problem never occured.
.

fletchedpair

Same problem from me earlier this year, but positive battery terminal connection was faulty so had it replaced. Very expensive as it contains the Safety Brake Konnector (SBK), explosive device which breaks the positive terminal connection in the event of a collision.