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

SL/R129: Compy reprogramming

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 21, 2008 | 01:00 AM
  #1  
chopnotch's Avatar
Thread Starter
Newbie
 
Joined: Sep 2008
Posts: 9
Likes: 0
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
Reply
Old Sep 21, 2008 | 02:26 AM
  #2  
HLG600's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2005
Posts: 4,057
Likes: 341
From: NJ
2009 SL63 AMG
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
Reply
Old Sep 21, 2008 | 10:21 AM
  #3  
chopnotch's Avatar
Thread Starter
Newbie
 
Joined: Sep 2008
Posts: 9
Likes: 0
From: Santa Clara
1992 500SL & 1974 Porsche 914
Thanks for the link! Beautiful car you have there BTW!
Reply
Old Sep 21, 2008 | 12:09 PM
  #4  
CWW's Avatar
CWW
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 1,517
Likes: 9
From: Daytona, Florida
SL600
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.
Reply
Old Sep 21, 2008 | 12:41 PM
  #5  
HLG600's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2005
Posts: 4,057
Likes: 341
From: NJ
2009 SL63 AMG
Originally Posted by chopnotch
Thanks for the link! Beautiful car you have there BTW!
Thank you!
Reply
Old Sep 21, 2008 | 12:45 PM
  #6  
HLG600's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2005
Posts: 4,057
Likes: 341
From: NJ
2009 SL63 AMG
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.
Reply
Old Sep 21, 2008 | 08:17 PM
  #7  
CWW's Avatar
CWW
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 1,517
Likes: 9
From: Daytona, Florida
SL600
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.
Reply
Old Sep 21, 2008 | 09:55 PM
  #8  
HLG600's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2005
Posts: 4,057
Likes: 341
From: NJ
2009 SL63 AMG
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.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Sep 21, 2008 | 10:36 PM
  #9  
CWW's Avatar
CWW
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 1,517
Likes: 9
From: Daytona, Florida
SL600
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.
Reply
Old Oct 2, 2008 | 05:13 PM
  #10  
HLG600's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2005
Posts: 4,057
Likes: 341
From: NJ
2009 SL63 AMG
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.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 04:38 AM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE