[W126 Coupe] ABS

[eurotech1 at charter.net]

  Hey Jack, 

  Check your wheel sensors as Jonathan suggested, as that is the most likely cause of the problem. Another thing that comes to mind, and most people don't think of this when performing maintenance on their cars, is the brake fluid. It is vitally important to perform a brake fluid flush at least every other year, as brake fluid absorbs moisture, and becomes contaminated. This is why you will sometimes find rust inside calipers, master cylinders and so on, when rebuilding them. We use test strips obtained at NAPA auto parts to test the amount of moisture absorbed by the brake fluid on our customer's cars when doing a service, as a tool to recommend fluid flushes.
  If cleaning the sensors, and flushing the brake system don't do the trick, you may need to look more closely at the ABS pump. Personally, I don't run into too many of these units going bad, but it does happen on occasion.

                Christopher Huffine
> From: "Jack Emery" <jemery at wn.com.au>
> Date: 2005/01/22 Sat PM 10:36:09 EST
> To: <mbcoupes at mbcoupes.com>
> Subject: [W126 Coupe] ABS
> 
>  420 sec/1986.
> When I apply the brakes while rolling to a stop, the brake pedal kicks back 
> repeatedly & the system groans till the car comes to rest. No big deal, 
> except the stopping time increases & passengers ask me what it is. Also, the 
> "ABS" graticule on the dash lights up, & stays lit until it decides to 
> extinguish itself sometime later.
> Is anything amiss here? It has occurred to me that because it is an old car 
> with what is probably early ABS technology, I may be better off 
> disconnecting the ABS system. Any suggestions, please?
> Jack in OZ.
> 
> 
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