Question about Mercedes-Benz Cars & Trucks
Asr and epc light are on and rpms go up and down and will not accelerate
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Posted on Jan 02, 2017
yes they can but unlikely-more likely a bad over voltage relay(powers up idle speed computer) or wire harness-your vehicle is probably a hfm type fuel injection they changed from lh that year. find out if it is lh check the fuses in the base module located in the passenger side of the engine compartment under a cover held in by 4mm allen head bolts-alot of times these control units have intermittent contact with there connectors. asr stands for acceleration slip regulation-both isc and asr communicate via can system to monitor throttle position- ea isc cc-idle speed cruise control and electronic actuater(throttle)-hopefully i have helped
Posted on Jun 05, 2009
I had a similar problem with my 1994 S420.
Before taking it to the shop check the following:
Distributor covers, Rotors and Spark Plugs. That's what my car needed. Before I did it two "specialized" MB mechanics wanted to replace the engine wiring harness ($1,000.00) and the other wanted to replace Air mass sensor, throttle valve actuator ($2,000.00) I hope that's all you need.
Posted on Jan 25, 2010
Testimonial: "You hit it on the head. Had same problem with my '95 S500. diagnosed as bad fuel rotors. Explained to me there is one per cylinder, and were all origi"
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