ASR Light on

[Will]

Yes, but Malcolm - that is a 124 and it is referring to US cars.

The car in question is a UK 126.

Does that not make any difference?

Will

 

[television]

Yes, but Malcolm - that is a 124 and it is referring to US cars.

The car in question is a UK 126.

Does that not make any difference?

Will

I have the official documents that show when these thing were first used.

It does not matter on the series, they were put on with the face lifts.

US cars are the same as ours apart from the steering wheel being on the wrong side and a few emision things

Look at the cluster link in post 14, you have one cluster for ASR and one without ASR

I looked his car up and the 1988 car 126 does not have it, thats why I posted back in post 6


As they do one cluster without ASR when did they use this ?????????

 

[grober]

lets agree to differ.

Malcolm you seem to be getting quite agitated about this so I am not going to pursue this difference of opinion any further. I for one value your contributions to the forum and would not wish to offend you further. Lets just agree to differ.

 

[Will]

Ditto

Will

 

[television]

Malcolm you seem to be getting quite agitated about this so I am not going to pursue this difference of opinion any further. I for one value your contributions to the forum and would not wish to offend you further. Lets just agree to differ.

Thanks grober, no I am OKthanks, its not been a good day. Any way Jay knows what he is doing and what he has got.

Well it looks like you are all right, and something very wrong with my info from MB

After going through hundreds of pages I see there is ASR1 ASR11 and ASR111


http://www.cardomain.com/ride/2237449

• The drive slip regulation (ASR) was introduced to model year 1987 and was the first all-electrically steered starting assistance. It was available initially only for the V8-Modelle. For the six cylinder variants there was an electrohydraulical check differential named ASD and to model year 1990 also an adequate ASR

By loading my old W§S back into another computer I have about 30 pages of faults but its too late tonight

Sorry to cause so much problems.




















On the system the ABS and the ASR work hand in hand and a fault in either one puts on both lights and are also affected by the throttle pedal

 

[television]

Sorry will and grober

Sorry Will and Grober. I will always say sorry when I am wrong, rather than be a fool.

I am very sorry about the trouble I have made in this post, the List of dates is an MB list from the training programs.

ABS I know started world wide in 1984
ESP 1996 correct as I know the cars that have it, and those that do not
BAS 1998 also correct as I know cars with and without it.
ETS 1994 could be correct as it seems to have replaced ASR.

My list should have said ASR 1 1987 and ASR11 in 1991, I do not know when ASR111 came.

A said I will look at the fault on Jays car later.

Everything has a silver lining ,sitting outside last night at 2am with a coffee and a cigar I saw a light inside my V70R that has been causing the battery to run flat, so thank you

 

[grober]

OVP possible problem??

Thank you Malcolm for your generous apology. The forum would be a pretty dull place if we all agreed all the time. Lets hope Jay gets his problem sorted and its not too expensive/difficult to rectify. I mentioned the OVP cos I read a post somewhere detailing poor internal connections on an old OVP were leading to a voltage drop sufficient to sometimes trigger the warning light. Replacing the OVP made the problem disappear. Not saying its that you understand but worth a try maybe.

 

[kasino]

this early asr system does not have any diagnostics,but a probable cause is failure of pressure pump. not 100% sure of its location but you will find it by following the brake fluid feed pipe from the master cylinder resevoir. when you find the pump put a 12v feed and earth to it and see if it runs freely

 

[Will]

Yes thank's Malcolm for taking the time to apologise - no need Sometimes when you are so sure of something you can't see the wood for the trees.

As Grober says, OVPs are quite troublesome and would be worth checking out.

If as Kasino says there is no stored fault codes the diagnosis method will obviously be a little more tricky!

Fingers crossed it's an easy fix

Will

 

[jaymanek]

Thanks all, i was about to correct Malcolm, but he has done it himself... i was indeed lucky to find a W126 with the ASR option... it was very expensive from new and many did not have it....

Anyway, i think my radiator blowing and the light coming on are too much of a coincidence. Im going to replace the OVP first of all, just because i have a dead W126 saloon here and that appears to have an OVP on it...

Then ill try the brake switch.,. after that ill be stuck..

The ASR pump is integrated into the ABS pump it appears and i assume that a problem here would also cause the ABS light to come on.
The ASR control unit is also a part of the ABS control unit.. The price new incidentally is £1600!!! Hope its not that!

I hate electronics, i really do...

Diagnostics is a bit of a no go... My fancy new machine tells me to plug a lead into a plug that has no wires going to it in the car.. so its back to old methods of investigation..

 

[jaymanek]

On the system the ABS and the ASR work hand in hand and a fault in either one puts on both lights and are also affected by the throttle pedal

Not necessarily... A fault in things that are inter related will cause both to come on, e.g wheel speed sensors... if its just a fault on the ASR side (e.g electronic speed control aka cruise), only the ASR light will come on..

 

[television]

Not necessarily... A fault in things that are inter related will cause both to come on, e.g wheel speed sensors... if its just a fault on the ASR side (e.g electronic speed control aka cruise), only the ASR light will come on..

I will put up a run down on the ASR1 this evening, if my USB stick works I may be able to send you the 50 pages.


The OVP relay is of the 7 pin type, it is the Austrian versions that fail through bad solder,the Irish ones are OK normally these if faulty will have 7.5 volt on pins 87 and ir should be 12v

 

[jaymanek]

hmm well the one i have just pulled off a 300SE has 9 pins and the part number matches up to what the EPC says i should have?

Appreciate the help...

 

[kasino]

Your car has definately got a seperate pump that returns fluid to the master cylinder resevoir as per my previous post. with no diagnostics to point you in the direction of the fault this system can be difficult to rectify, but from my experience it is not uncommon for these pumps to sieze and put the light on

 

[jaymanek]

yes but that would mean the light being on all the time.. mine comes on when it feels like it, sometimes i can do 60-80 miles before it decides to have a fit...

 

[jaymanek]

Not the OVP im afraid, i tried a different one and still the same, besides it looks like a brand new OVP in the car anyway...

Brake switch on order..

 

[television]

Not the OVP im afraid, i tried a different one and still the same, besides it looks like a brand new OVP in the car anyway...

Brake switch on order..

If it is not the switch I have 35 pages of info, rather than Email I may put it all onto a memory stick and post the stick to you where you can down load and return my stick

 

[jaymanek]

thanks Malcolm, appreciate it... i dont hold out much hope for the brake switch as it doesnt necessarily come on when i press the brakes!

 

[grober]

In ASR 2 systems there's a pressure accumulator device to maintain hydraulic pressure in the system. ( under the nearside wing?) It contains pressurised Nitrogen. If it fails to maintain system presure the warning light is going to go on. Another possibility??

edit :- did you try changing the battery --I'm not joking!

 

[jaymanek]

I think mine is first generation ASR.. i found the pump, it is indeed a seperate unit on the wing... it has bleed nipples on it, do you think the fluid could need a change?