MrMcGoohan

hi all! can anyone offer advice: the seat pretensioners in my W164 ML350 keep going off! constantly. the front passenger seat lowers as well, all part of the pre crash safety system fitted to my car. anyone know what the fix is? is a crash sensor going nuts or is it a fault with the entire seat belt system? if i take the fuse out for the pretensioners (no 24 i think - as a short term fix) will it have any knock on effect to any other system?

NvidiaNerd

do u mean you are having problems with ur SRS, if so that it is most likely a sensor inside the belt buckle

MrMcGoohan

No.. it's not the srs... it's the tensioners firing off all the time. I suspect (hope) it's just a faulty crash sensor. But there's loads them!

spookster

Hi I know this is an old post but have been getting this same issue. Did you ever solve it?

Gillianmck

I'm having the same problem! Has anybody successfully fixed this issue?

spookster

I had the bake booster replaced last month under the factory recall, it has only happened once since then

Gillianmck

I just pulled out fuses 24 and 29, which are the driver and passenger side seatbelt pre tensioners and taken the car for a 2 hour drive and it solved the issue. It has disabled the presafe system but i dont care.

mshepstone

@gillianmck Does pulling the fuses not leave the SRS light aluminated all the time?

Gillianmck

Yes Ive got lights on and warnings coming up but I just ignore them. It's driving fine.

Statesman

Hi mate, got the same problem did you get sorted

Gillianmck

No I never got it sorted. I sold the car to a friend who doesnt care about the issue. Hes still driving it around without those two fuses.

anavabi

Hi, I know this is an old post. Would you please let me know how to get to this sensor. The SRS on my ML500 driving me crazy. Thank you.