A Class intermittent warning lamps=ABS & SRS

[pinballexpress]

Went to customer last night that is having probs with her A140 manual, Y reg where ABS & SRS warning lamps on dash are lighting on & off intermittently. (only done 97k miles).

There appears to be no pattern or duration consistency with these problem warning lamps that go on & off for no valid reason.

Could it be computer or relay faults perhaps?
Bad earth?

And will, or can the ABS lamp prevent car from passing the M.O.T. even though the rolling road test is passed?

Customer woman driver has had car for a few years & has been told by stealers that whole braking system will have to be changed along with air bag(s) totalling a massive £2,000 plus job!
(What a bunch of jokers they are).

Finally, need an indy in the Uckfield area for her, as she last used one in Rottingdean nr Brighton (25 miles away) that cost her over a £1,000 inc a major service that sounds a bit like a rip off to me.

Any help or suggestions gratefully recieved thanks.

Keith.

[Birdman]

Went to customer last night that is having probs with her A140 manual, Y reg where ABS & SRS warning lamps on dash are lighting on & off intermittently. (only done 97k miles).
Keith.
Just came across your post using the search function. I saw a brief display from the SRS warning light while waiting to pull out from a junction, with 90K on my 2001 E-series. So I wondered what the solution to your customer's problem was, if any.
Could it be connected with an ageing battery (no pun intended)?

[Ian B Walker]

I would check the £7 brake switch and save £1993.

[Birdman]

I would check the £7 brake switch and save £1993.

OK, but that couldn't account for the SRS warning flashing intermittantly. The possibility with a five year old high miler of a failing battery giving enough power to start the car but not enough to run the electrics correctly after starting is quite good (if that's the way to put it).

Could be more than one fault present in the A class, of course:)

[television]

OK, but that couldn't account for the SRS warning flashing intermittantly. The possibility with a five year old high miler of a failing battery giving enough power to start the car but not enough to run the electrics correctly after starting is quite good (if that's the way to put it).

Could be more than one fault present in the A class, of course:)

I know keith very well,lovely guy, basking in the S of france right now.

Back to the thread, just to say that many people get the letters muddled up the wording within that warning is ABS/ESP.

Malcolm

[Birdman]

The brake switch fault warning would be, ABS/ESP, you're right. But I had just one warning lamp and it said SRS and I'm not sure whether Ian's remark referred to my experience. Come to think of it, Keith did say 'lamps' in the plural. Maybe he's too busy sliding down mountains to come to our rescue?! :)

[richard]

The brake switch fault warning would be, ABS/ESP, you're right. But I had just one warning lamp and it said SRS and I'm not sure whether Ian's remark referred to my experience. Come to think of it, Keith did say 'lamps' in the plural. Maybe he's too busy sliding down mountains to come to our rescue?! :)

Birdman, you don;t happen to have one of those mb baby/child seats that turn off the airbag do you ? - They result in occasional SRS light on on our ML, that goes when you turn engine off and on again.

Cheers

Richard

[Spin_bowler]

The SRS light comes on and off in my S-class and I thought that it was totally random. I have now realised that it comes on when the passenger seat has been occupied and vacated whilst the ignition is on (i.e after dropping someone off etc). Next time I start the car the light goes out until next time the sequence is repeated...

[Birdman]

It might be linked to a random drop in the passenger seat load (weight shift), although I don't have babies on board anymore! An interruption in the sender unit can have the same effect, caused by mechanical wear'n'tear on the underseat electricals. And of course, battery fatigue...:crazy:

[television]

The circuit in this arrangment is completed by the seat belt, thats how the seat sensor knows if the seat is occupied.

There have been issues with the C class seat.

Maybe if the passenger got out and then removed the seat belt, er er er maybe not.

Malcolm

[Birdman]

The circuit in this arrangment is completed by the seat belt, thats how the seat sensor knows if the seat is occupied.

There have been issues with the C class seat.

Maybe if the passenger got out and then removed the seat belt, er er er maybe not.

Malcolm
Or chasing a smarty or lighted cigarette under the derriere.....:D

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