SL/R230: ABC - Visit Workshop message in sub zero temps ?.
As per the title my 2003 SL500 has displayed the ABC - Visit Workshop message twice over the past month or so. It happened both times after the car had been stood over night in sub zero temperatures.
The message as you can see is in the normal white letters rather than red, does this make a difference ?.
When the car has been running for a few minutes and warmed up a bit if i turn it of then back on again the message is gone. It also never happens when the weather is warmer.
I have noticed a bit of cracking to the gaitor around the strut on my drivers side front but 99 times ot of 100 the ABC works just fine.
Do i have anything to worry about ?.
Thanks
Carl
The dealer said that its because the ABS pump is starting to fail and the pressure build up isnt high enough hence the occasional light.
Is this right ?. It has only happened twice in 6 weeks of ownership and if its not sub zero outside it doesnt hapen at all ?. The dealer wants nearly £2000 ($3500) to sort the problem and i cant help think i am being ripped off ?.
Hope somebody can help ?.
Thanks
Carl
I do hear a pump noise for a couple of seconds when i start up and switch off, could that be the ABC pump groaning ?.
The suspension seems to be working fine, it softens in C & stiffens in S then raises if requested to and it doesnt lean, sag or anything. I just had this message a couple of times when the temperatures are really low outside and the car has been parked over night.
Im going to look at the fluid today, the dealer said its fine but im guessing they would say that if they are trying to sting me for £££££.
Is there any tell tale sign of the pump not acting as it should ?.
Thanks
Carl
I hard the car running and on level ground, i removed the dipsick and cleaned it with a clean lint free cloth then re dipped the stick to check the level. When i brought it back out the fluid level on the dipstick was a clear 1/2" below the minimum marker. The marks in the dipstick were grooves, one on one side and one on another and they appeared to indicate a max / min level. My fluid level with the car running was not reaching the min mark.
If its low roughly how much do i need to top it up ?.
Did i check it correctly ?.
Thanks
Carl
since you have a 2003 model, can u tell us from the service records, if the abc was flushed prior to your ownership. Usually one of the best ways to service abc is the perform flushes at 30,000 miles to make sure the fluid is clean. If the system hasn't been flushed the liquid will get contaminated and cause all sorts of issues down the line..
If the pump is going bad, then, i would recommend taking the car to a good Mercedes independent mechanic. Hopefully u can save money, but the costs for a new pump are pretty high.
good luck.
amer
I hard the car running and on level ground, i removed the dipsick and cleaned it with a clean lint free cloth then re dipped the stick to check the level. When i brought it back out the fluid level on the dipstick was a clear 1/2" below the minimum marker. The marks in the dipstick were grooves, one on one side and one on another and they appeared to indicate a max / min level. My fluid level with the car running was not reaching the min mark.
If its low roughly how much do i need to top it up ?.
Did i check it correctly ?.
Thanks
Carl
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If it hasnt been done it will be getting done in the coming weeks.
Do you know the correct check process for the ABC fluid ?. Is the way i did it ok ?.
Thanks
Carl
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It started off with the ABC visit workshop in the display which only seamed to come on in the morning when very cold temperatures, then last week ABC drive carefully was displayed in red and the suspension went extremely soft.
I took it to the dealers and they repaired a leak and topped up the fluid, but now the same problem has returned and the dealers say that the pump requires replacement.

I just had my car in and complained about a pumping noise at start up, but I just checked that fluid and it is definitely low. they ended up replacing a bushing, a lot of good that did me.
anyway, is that the correct reservoir to check?


apparently fletcher jones didn't bother to check that when i was in two weeks ago and listed 'some sort of dry pump sound at start up' that i was concerned about.
i've restarted it a few times since and that noise is no longer occurring. i'll try it a few more times once it's cold, but either way, running the ABC dry is a pretty expensive and easily preventable situation.
now that i'm out of warranty i'll be taking it to an indy down the street, if i keep it that long. maybe i'll have a chance to review their work when i pick up my car instead of being walked directly to the cashier and then pointed to the valet to pick up my car that is already running and aimed down the driveway for my immediate departure- haha
I think I need to full it up too... Because I get my message after really hard curves, but in white color.
After ignition off, everything works fine again.

attached the image. the top of the dipstick is rubber and didn't initially strike me as something that would be the top of the dipstick, but give it a little squeeze & pull and there you go.







