SL/R129: ASR problem??
Thread Starter
Newbie
Joined: Apr 2025
Posts: 3
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From: Charlotte, NC
1995 SL500
ASR problem??
Hey everybody,
I’m a migrant from BenzWorld, and I’ve got a problem going on with my SL. For reference, it is a 1995 SL500, 101k miles on it.
The Problem: the car starts fine and idles fine until the car’s temp reaches ~65 degrees C. At this point, the car dies almost as if I removed the keys.
I have replaced the coils, distributor caps and rotors, spark plugs, HT leads, fuel pressure regulator, EZL (thrice), the EGAS module and ASR module, crank sensor (twice), drained and filled the gas, fuel pump, fuel filter, MAF (which incidentally made it run worse because the 5 pin connector version of the MAF is NLA, and new parts are 4 pin) and I’m at my wits end. I read the codes, cleared them all, and ran it to see which codes came back and I got these.
Pin 6: code 30
Pin 7: code 2
Pin 19: Code 6, Code 7, Code 16, Code 17.
Code 30: no data comm.
Code 2: fault in one of many systems
Code 6: idle speed control faulty
Code 7: ignition system faulty
Code 16: Closed throttle position information faulty
Code 17: Data exchange fault between individual control module
Harnesses were replaced in 2014, cut into harness for ETA to CANBUS, looks brand new HOWEVER I haven’t taken off the plate that covers the potentiometers or the circuit board on the other side of the ETA.
Any help is appreciated greatly, thank you!!
I’m a migrant from BenzWorld, and I’ve got a problem going on with my SL. For reference, it is a 1995 SL500, 101k miles on it.
The Problem: the car starts fine and idles fine until the car’s temp reaches ~65 degrees C. At this point, the car dies almost as if I removed the keys.
I have replaced the coils, distributor caps and rotors, spark plugs, HT leads, fuel pressure regulator, EZL (thrice), the EGAS module and ASR module, crank sensor (twice), drained and filled the gas, fuel pump, fuel filter, MAF (which incidentally made it run worse because the 5 pin connector version of the MAF is NLA, and new parts are 4 pin) and I’m at my wits end. I read the codes, cleared them all, and ran it to see which codes came back and I got these.
Pin 6: code 30
Pin 7: code 2
Pin 19: Code 6, Code 7, Code 16, Code 17.
Code 30: no data comm.
Code 2: fault in one of many systems
Code 6: idle speed control faulty
Code 7: ignition system faulty
Code 16: Closed throttle position information faulty
Code 17: Data exchange fault between individual control module
Harnesses were replaced in 2014, cut into harness for ETA to CANBUS, looks brand new HOWEVER I haven’t taken off the plate that covers the potentiometers or the circuit board on the other side of the ETA.
Any help is appreciated greatly, thank you!!
