SL/R231: 2013 SL550 - goes into limp mode when I punch it
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Generic scanners are OK to check your car before it gets smog tested or to clear generic codes, but OBD only specifies that manufacturers provide very basic compatibility while most manufacturers then use proprietary codes for their specific control modules. Do yourself a favor and get a scanner specific to Mercedes cars. Pick one of these.
2023 LAUNCH X431 Fit for Benz Sprinter Full System OBD2 Scanner, Bi-Directional Diagnostic Scan Tool
Last edited by JettaRed; Sep 14, 2023 at 08:50 AM.
MBWorld Fanatic!
Joined: Dec 2015
Posts: 1,634
Likes: 521
From: Hagerstown MD
2015 SL400; 2019 X5M40i
Had the wheel sensor replaced and it cleared the Christmas tree of ABS and antiskid and drives fine. No engine light either. Gave my bro $200 since he ordered an OEM sensor and I didn't lift anything but my wallet. I bet this would have been a minimum $500 dealer charge. Or a $50 maintenance charge and a $450 car wash.
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Member
Joined: Mar 2020
Posts: 131
Likes: 48
2014 sl550
I had the same issues with my 2010 E350 , punching it and limp mode every time, I never took it to a dealer or mechanic because they will not know that your accelerator pedal sensor is going bad, so they will charge you for something and it will not fix the problem. So I changed the accelerator pedal entirely, and no more problems! I suggest once you get your new pedal, reset the transmission to learn your new pedal properly. Swiffty
Junior Member
Joined: Mar 2023
Posts: 23
Likes: 0
From: Ft. Lauderdale, FL
2013 SL550
Wheel Speed Sensor ... again
Amazon's Choice...don't judge me.
ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool-Black
I'm still figuring this thing out and can't seem to Erase the codes, but the Engine light is out and no Cautions or Warnings displayed. Under the menu item that says "Stored Codes", it has:
C0034 Right Front Wheel Speed Sensor
P061A Internal Control Module Torque Performance
I think I read somewhere how the Speed Sensor failure can confuse the crap out of the sensor systems and cause mismatches that latch this type of generic code. The only issue I had was an inability to Erase the codes regardless of key state. Further investigation here, but seems all is well now and only $200 to a good man.
ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool-Black
I'm still figuring this thing out and can't seem to Erase the codes, but the Engine light is out and no Cautions or Warnings displayed. Under the menu item that says "Stored Codes", it has:
C0034 Right Front Wheel Speed Sensor
P061A Internal Control Module Torque Performance
I think I read somewhere how the Speed Sensor failure can confuse the crap out of the sensor systems and cause mismatches that latch this type of generic code. The only issue I had was an inability to Erase the codes regardless of key state. Further investigation here, but seems all is well now and only $200 to a good man.
Newbie
Joined: Apr 2026
Posts: 2
Likes: 0
SL550 R321
I paid $960 for parts and labor at a Mercedes-Benz dealer in Florida. This happened on the same day I bought my SL, and I was furious! However, when those sensors go bad, they can throw all sorts of error codes, making you feel like the car is falling apart. After I changed the sensors, I drove it for 1,000 miles without any issues.
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Newbie
Joined: Apr 2026
Posts: 2
Likes: 0
SL550 R321
You can disconnect both batteries, touch the terminals, wait 15 minutes, and then try again. I've towed mine. Lessons learned: always change in pais. I fought my dealer for just one, and she smartly said, "If I do one, you will be back here for the other soon." Might as well do both.
