SL55/63/65/R230 AMG: sl55 amg limp mode
Thread Starter
Newbie
Joined: Feb 2018
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From: Mt Pleasant, Wi
sl55 amg 2003
sl55 amg limp mode
Under hard accelleration the car goes to limp mode, I read some where that the tps was probably to blame so I Picked up a used gas peddle and changed it out. It didn't fix the problem. there is no check engine light
Thread Starter
Newbie
Joined: Feb 2018
Posts: 3
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From: Mt Pleasant, Wi
sl55 amg 2003
Member
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2005 SL55 Completely Built Motor
On a serious note plug it into a OBDII reader that works with Mercedes Benz and see what it says. A lot of things can cause these things to go into limp mode. If you have an Advanced Auto(or Autozone) I think they'll hook it up for free and tell you the codes.
Thread Starter
Newbie
Joined: Feb 2018
Posts: 3
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From: Mt Pleasant, Wi
sl55 amg 2003
Ahhhh.....why would you ever do that?
On a serious note plug it into a OBDII reader that works with Mercedes Benz and see what it says. A lot of things can cause these things to go into limp mode. If you have an Advanced Auto(or Autozone) I think they'll hook it up for free and tell you the codes.
On a serious note plug it into a OBDII reader that works with Mercedes Benz and see what it says. A lot of things can cause these things to go into limp mode. If you have an Advanced Auto(or Autozone) I think they'll hook it up for free and tell you the codes.
Member
Joined: Feb 2018
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2005 SL55 Completely Built Motor
You can also try this..
All auxiliary must be off (radio, lights.aircon, etc) no electrical drains or CAN signals can be triggered during the process.
Turn the Key to the "on" position (the position right before you start your )
Press and hold your gas pedal down for like 5 to 10 seconds
Turn to "off" position (dont remove the ) and then release the gas pedal.
than wait at least 2, if not 3 minutes, for the system to reset.
Though I doubt the later will solve anything but it won't hurt.
MBWorld Fanatic!
Joined: Dec 2005
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From: Indiana
2003 AMG SL55, 2002 AMG CLK55, 2002 AMG ML55, 2005 ML350, 1995 S320 LWB - totaled
I too had this problem. It was the accel pedal assembly. It s an easy fix. 2 bolts and a plug. Done and done - problem solved. This one is a DIY problem.
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Joined: Jun 2006
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From: Atlanta
'12 Cayenne Turbo, '12 GL450, '03 SL55, '89 560SL,
Should I try replacing the Accelerator Pedal Assembly or the TPS (throttle position sensor)?
Thank you!
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Junior Member
Joined: Jun 2006
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From: Atlanta
'12 Cayenne Turbo, '12 GL450, '03 SL55, '89 560SL,
It's not throwing any warning symbols, though... will a reader still pick up a code?? By the time I slow down to ~20 mph, the problem seemingly resolves itself and I'm good to go again with my 500 hp.
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2005 SL55 Completely Built Motor
Yes, many codes won't set off a check engine light.
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SL 55 AMG
MBWorld Fanatic!
Joined: Dec 2006
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From: Bethesda, MD
2000 SL500
If it happens every time you hit wide open throttle(pedal to the floor) car goes to limp mode with ESP light then it’s probably your pedal. There is a sensor attached and it’s a full unit. I bought one used on eBay and fixed my problem right away. It only happened when I pushed the pedal all the way to the floor
