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

SL/R129: Compy reprogramming

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Old Sep 21, 2008 | 01:00 AM
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chopnotch
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From: Santa Clara
1992 500SL & 1974 Porsche 914
Compy reprogramming
Hi fellas.

Okay, so I just purchased a '92 500SL. Now I haven't taken it to it's 155 mph limit (speed) and of course I don't plan on it but, you never know if there will be a nuclear exchange with "Iran" and should I need to outrun a shockwave... I would like to have that ability... just in case.

How can I or is there anyone in the San Francisco bay area who could remove the speed limiter on my car as what is it capable of? 180 something?

Muchos garcias!
Chop
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Old Sep 21, 2008 | 02:26 AM
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HLG600
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R129 SL500's are capable of getting up into the 170+ range when delimited. Any reputable ECU upgrade removes the speed limiter. Shoot them an email and see if they offer a chip for the '92 model.

http://speedtuningusa.com/products/mb.htm
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Old Sep 21, 2008 | 10:21 AM
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Thanks for the link! Beautiful car you have there BTW!
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Old Sep 21, 2008 | 12:09 PM
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Originally Posted by HLG600
R129 SL500's are capable of getting up into the 170+ range when delimited. Any reputable ECU upgrade removes the speed limiter. Shoot them an email and see if they offer a chip for the '92 model.

http://speedtuningusa.com/products/mb.htm
Have you used them? Their price is certainly nice...less than 1/2 of Powerchips' tune.
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Old Sep 21, 2008 | 12:41 PM
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Originally Posted by chopnotch
Thanks for the link! Beautiful car you have there BTW!
Thank you!
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Old Sep 21, 2008 | 12:45 PM
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Originally Posted by CWW
Have you used them? Their price is certainly nice...less than 1/2 of Powerchips' tune.
I haven't. Read some very positive reviews about them though. I don't see why ECU tuning is expensive ($900 for a Power Chip) for these older cars. It is literally plug and play by swapping out two chips, unlike the modern Merc's which require re-flashing. SpeedTuning at least offers a more manageable price. If I didn't have to replace my effin' cats and starter module, I would have had a nice budget for some upgrades. Guess I'll have to settle with just 400 bhp.
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Old Sep 21, 2008 | 08:17 PM
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Originally Posted by HLG600
I haven't. Read some very positive reviews about them though. I don't see why ECU tuning is expensive ($900 for a Power Chip) for these older cars. It is literally plug and play by swapping out two chips, unlike the modern Merc's which require re-flashing. SpeedTuning at least offers a more manageable price. If I didn't have to replace my effin' cats and starter module, I would have had a nice budget for some upgrades. Guess I'll have to settle with just 400 bhp.
What year is your car? I just got a letter in the mail from MBUSA telling me they got sued for defective manufacturing on the SL600 cats, and are now extending the factory warranty on them to 10yrs/100k. My car is a 2001, and the letter states it covers 1999 or 2000 through 2002. I can scan and send it to you if you want.
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Old Sep 21, 2008 | 09:55 PM
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Originally Posted by CWW
What year is your car? I just got a letter in the mail from MBUSA telling me they got sued for defective manufacturing on the SL600 cats, and are now extending the factory warranty on them to 10yrs/100k. My car is a 2001, and the letter states it covers 1999 or 2000 through 2002. I can scan and send it to you if you want.
I appreciate that very much, but mine is a '97, so the warranty would have already been expired. They failed after 11 years and 57,000 miles. Those direct fit replacements saved me a ton as well. Thank you for the offer though.
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Old Sep 21, 2008 | 10:36 PM
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Originally Posted by HLG600
I appreciate that very much, but mine is a '97, so the warranty would have already been expired. They failed after 11 years and 57,000 miles. Those direct fit replacements saved me a ton as well. Thank you for the offer though.
Oh that's right, I forgot you already replaced them. Nevermind.

I may give speedtuning a shot.
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Old Oct 2, 2008 | 05:13 PM
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Post up the results if you go with it. The great thing is that an a more aggressive map for this car is literally plug and play.
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