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SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

ASR light

 
Old 07-08-2011, 10:47 PM
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1991 SL500
ASR light

ASR light comes on randomly and causes car to go into "limp mode".Shop could not find any error codes and of course it did not act up when they test drove it.Any suggestions on where to start looking?
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Old 07-25-2011, 04:53 PM
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not a merc
if only ASR lamp comes on and car goes to limp mode,
You have a problem with your electronic accellerator control
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Old 08-09-2011, 03:53 PM
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94 SL500
Just went to the dealer to have them check why me asr went on and into limp mode. They said I need the Throttle Actuator was a fault and I need a new stop light switch. Found a place to rebuild my Throttle Actuator for $290, the dealer wants $2042 for the part plus six hours of labor

Tom Blanchard
94 SL500
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Old 08-23-2011, 02:52 PM
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95 SL 500, 08 Infinity FX35
Could you please provide information regarding the company you found to rebuild you ETA? Thanks
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Old 08-23-2011, 04:07 PM
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94 SL500
BBA-Remanufacturing

BBA Remanufacturing Inc
300 Myles Standish Blvd
Tauton, MA 02780

1-866-573-2740

http://www.bba-reman.com

I just got my ETA back today and going to get install yet today I hope.
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Old 09-26-2011, 11:16 AM
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95 SL 500, 08 Infinity FX35
To repair your ETA, contact Victor Sevryugin

www.restoreyourmercedes.com

Direct line: 917-674-5599
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Old 03-20-2013, 07:54 PM
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1995 SL500
Sl R129

Doe anyone know how to overide my ASR - it puts my car into a limp mode from time to time........?
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Old 03-20-2013, 10:07 PM
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94 SL500
ASR light

When my ASR Light came on I had to have the ETA rebuilt, and find a new computer box called the E-gas module, I found one on e-bay after looking for months for a price of $226.95 and had looked a long time for one that was a good price. The dealership what like a fortune, I also tried replacing the stop light switch. I went to an independent Mercedes Mechanic, and he had no idea, and replacing a few parts. I ended up figuring out the problem myself. Question does the cruise control work ok?
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Old 04-13-2013, 01:27 PM
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1994 SL500
Hi everyone, Newbie here!! I purchased my 94 SL500 a year ago, had the same issue with ASR light and LimpHomeMod!!! Was qouted anywhere from $250 - $3000 to fix.. Went to my back yard mechanic friend he had a look, found the "Black Plastic Throttle Adjuster at Back of Engine that has some kinds of a plastic lock nut that was not locked to the adjuster.. tightened it up issue gone, and throttle more responsive now.. Anyone needing pic's let me know... cost $$Handshake...
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Old 07-22-2013, 02:45 AM
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CLK 320 ELEGANCE CABRIOLET
Can I see the picture, got the same problems like yours
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Old 07-31-2013, 02:14 PM
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ASR light on

Originally Posted by tomblan View Post
Just went to the dealer to have them check why me asr went on and into limp mode. They said I need the Throttle Actuator was a fault and I need a new stop light switch. Found a place to rebuild my Throttle Actuator for $290, the dealer wants $2042 for the part plus six hours of labor

Tom Blanchard
94 SL500
My ASR light comes on after 40 second when starting up but no limp mode
Car drives fine but the ASR light is on
can you help me
1991 500 s/l

Bill
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Old 07-31-2013, 09:01 PM
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CLK 320 ELEGANCE CABRIOLET
Originally Posted by wingman2k7 View Post
Hi everyone, Newbie here!! I purchased my 94 SL500 a year ago, had the same issue with ASR light and LimpHomeMod!!! Was qouted anywhere from $250 - $3000 to fix.. Went to my back yard mechanic friend he had a look, found the "Black Plastic Throttle Adjuster at Back of Engine that has some kinds of a plastic lock nut that was not locked to the adjuster.. tightened it up issue gone, and throttle more responsive now.. Anyone needing pic's let me know... cost $$Handshake...
Can you post the picture so that everyone can see it, thanks
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Old 08-13-2013, 10:17 AM
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1994 SL500
ASR Light

Originally Posted by mohdnoor View Post
Can you post the picture so that everyone can see it, thanks
Hi guys, sorry I wasn't able to reply sooner, was working outta town and my laptop quit. I'm still waiting to get it back as that's where my photos are of the repairs I've to my SL500.
But what ended up being the issue with my ASR light was the throttle cable at the back of the engine, the adjuster which is on the driver side, the cable runs thru this plastic adjuster that has a 3" hollow bolt the cable wire runs thru, that star shaped nut on mine was loose which is suppose to lock this adjusted in place. Once it was tightened, I haven't had the light come on since. I drive it to work every day. If i get my laptop back and don't loose all my info I will post pictures.
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Old 08-29-2013, 01:06 PM
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500SL 1993
Please post photo. On my 500SL 1993 I see the star hollow screw bolt. Just wondering how far it is supposed to be screw in?? now it is about half screw in. Photo would show me how far to screw it in.
Thanks,
Silly girl trying to fix her car
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Old 07-23-2014, 11:42 PM
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r129 500SL
ASR Light

My 1991 Mercedes R129 500SL ASR light indicator turns on randomly especially when the engine is running for more than 25 minutes.
The engine is using K Jetronic fuel injection and has a mechanical fuel distributor.
After more than 30 minutes driving, the ASR light comes on and engine goes into "limp mode".
During the first 25 minutes of driving, the car perform without any problems.
The problem starts after the engine has run in for more than 25 minutes.
From existing forum, there were suggestions to check the throttle body and cable.
My mechanic has tightened the throttle cable and check the throttle body and found no problems with these .
Appreciate if someone can provide some suggestions on where to start with troubleshooting this car.

Thanks in advance.
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Old 07-25-2014, 01:57 AM
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124 92 126 90 R129 91
Check ETA wiring,may have shorts.
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