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  #1  
Old 07-01-2007, 09:57 AM
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E 420 with Temp. related ASR & ABS problom

I have 1994 E420, recently both ASR & ABS lights comes when the temperature guage read 80 degrees; NO overheating problem. The car will start and drive normal until the temperature hit 80 degrees, then both lights comes on with engine still running and a sudden lost of accelation power, and pressing the accelator pedal require greater effort.

Suggestion to tackle this problem will be highly appreciated.

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  #2  
Old 07-01-2007, 10:07 AM
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Posting in the tech forum will better mechanical replies. Best answer you'll get in the open discussion is that the problem is caused by Islamic terrorists.
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  #3  
Old 07-01-2007, 10:57 AM
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'94 S500: only 793 sold!
 
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Quote:
Originally Posted by CASANOVA View Post
I have 1994 E420, recently both ASR & ABS lights comes when the temperature guage read 80 degrees; NO overheating problem. The car will start and drive normal until the temperature hit 80 degrees, then both lights comes on with engine still running and a sudden lost of accelation power, and pressing the accelator pedal require greater effort.

Suggestion to tackle this problem will be highly appreciated.
Check out MENU#24 on my pages; sounds like the dreaded ETA . . .

The accelerator pedal is exhibting the "limp-home" response.
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  #4  
Old 07-01-2007, 11:47 AM
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Location: Sarasota, Fl.
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Check out Jim's pages. Pull the codes (a search will yield a lot of info, including how to build your own reader) Basic codes you can get w/o a reader, by using the pushbutton and the LED.
Don't bother complaining to MB about defective wiring in the harness and the ETA - they know nothing about it (yeah, right).
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  #5  
Old 07-01-2007, 01:54 PM
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E420 Temp related ASR/ABS problem

Thanks JimF,
I am now convinced this baby must go to the dealer for this repair; all alone I had suspected both Throttle body and the Cruise/throttle control module as culpable. I am only afraid of the dealers’ price for these parts.
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  #6  
Old 07-01-2007, 03:51 PM
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What, Me Worry?
 
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Location: Sarasota, Fl.
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You're going to go to the Dealer? Boy, you must be a glutton for punishment. Either find a good mechanic, or do it yourself. (unless you have some good friends working at a Dealer).
It sounds like it might be brain surgery, but it is not - don't be afraid. For what the dealer is going to charge you, you can do this yourself, and pay for a rental car (in case this takes you more than a day, because you are doing it one-handed), and still save money compared to taking it to a dealer.
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1985 300D
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  #7  
Old 07-01-2007, 03:51 PM
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'94 S500: only 793 sold!
 
Join Date: Mar 2001
Location: San Diego, CA
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Quote:
Originally Posted by CASANOVA View Post
Thanks JimF,
I am now convinced this baby must go to the dealer for this repair; all alone I had suspected both Throttle body and the Cruise/throttle control module as culpable. I am only afraid of the dealers’ price for these parts.
You will probably find that the CC is ok . . it usually is but is one of the symptoms of a going-bad ETA. The EA/ISC/CC are all in one module.

If you have a independent shop you probably do better . . the dealer prices for the ETA and labor are abit steep,
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  #8  
Old 07-01-2007, 03:53 PM
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What, Me Worry?
 
Join Date: Jun 1999
Location: Sarasota, Fl.
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As Jim just said, the prices for ETA's are NOT cheap - I don't know if the dealer will let you use a rebuilt unit - so now you are looking at really big bucks.

You might be thinking, that the car isn't worth that kind of money...maybe you are right....I'll take it off your hands for $1k and send you a thank-you card.

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