2011 GL 350 loses power after driving 5-10 minutes
The vehicle runs great for the first 5-10 minutes. After that, if I try accelerating, it shifts at pretty low RPMs (2k or less) even with it floored.
Shutting the vehicle off and turning it back on appears to "reset" something, where it then runs fine until it starts lagging again.
Does anyone have any clue what's going on here?
Last edited by Micah / AF1 Rac; Sep 16, 2014 at 09:03 AM.




EVERYOMNE will tell you what put their engine in limp mode, and it may or may not be what put yours there.
Seems the high hitters are (or seem to be):
The EGR system acting up
(and/or some sensor making the ECU "think" the EGR system is acting up)
The DPF filter (and/or the DPF filter pressure sensor)
People used to talk about burnt out intake manifold flap motors. (from dripping oil from eth turbo intake gasket)
Mine has done it is a few times. Each time is when it is cold and wet.
So far none of the time triggered a Check Engine Light, nor stored a code a regular OBD/CAN reader would show.
All times seemed random as to how long the engine had been running and always reset with a full shut-down and restart.
I am guessing the DPF pressure sensor since it is under the car exposed to the elements.
Since your sounds consistent, I would hope a GODD mechanic with a DAS system can figure out what is tripping it into limp mode.
Last edited by N_Jay; Sep 15, 2014 at 02:11 PM.
EVERYOMNE will tell you what put their engine in limp mode, and it may or may not be what put yours there.
Seems the high hitters are (or seem to be):
The EGR system acting up
(and/or some sensor making the ECU "think" the EGR system is acting up)
The DPF filter (and/or the DPF filter pressure sensor)
People used to talk about burnt out intake manifold flap motors. (from dripping oil from eth turbo intake gasket)
Mine has done it is a few times. Each time is when it is cold and wet.
So far none of the time triggered a Check Engine Light, nor stored a code a regular OBD/CAN reader would show.
All times seemed random as to how long the engine had been running and always reset with a full shut-down and restart.
I am guessing the DPF pressure sensor since it is under the car exposed to the elements.
Since your sounds consistent, I would hope a GODD mechanic with a DAS system can figure out what is tripping it into limp mode.
Last edited by wanderingrabbi; Sep 15, 2014 at 07:33 PM. Reason: adding explanation




From the write-ups I have read about people chasing these problems, even with a dealers help, it seems that man of these problems do not even store an error code.
What the F kind of control system software developer builds in safety routines and does not bother to capture the event causing entry into the routine?
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