GLK-Class (X204) Produced 2008-2014

2015 GLK 250 delayed acceleration nd Jerking and Shutting Off

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Old Oct 19, 2025 | 06:51 PM
  #1  
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2015 GLK 250 delayed acceleration nd Jerking and Shutting Off

Hi so ive been at with this car for a while now alot of new parts and still nothing… The codes i get P068B71 P0299FE P0101FE

All my pipes are good that connects too the turbocharger and inter cooler everything mechanically wise seems good, took it too 1 shop and they told me it was my Gas pedal and i replaced it still nothing.

The issue it self is the car will go into a limp mode and if you press the pedal it would Jolt or Jerk and it will keep it self alive if u pedal a bit but it will keep jerking until it you let off and it will die out and completely shut off. I can reset it too get back home but not ideal for daily driving.

Need some help here kinda lost
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Old Oct 20, 2025 | 08:47 AM
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2013 glk 350
I had a hose that looked good then under pressure it had a small split . Under pressure I found it and by carefully squeezing everywhere. What are the codes for ? Pressurize and smoke might help .
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Old Jan 30, 2026 | 12:41 AM
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From: CHARLOTTE NC USA
2012 GLK350 4matic
Could be transmission oil too hot

Not sure if you ever found the root cause, but stumbled on Weistec Engineering's transmission pan upgrade as I was researching tuning parts for my 2012 GLK350 4 matic. The limp mode getting triggered could be from transmission oil getting too hot. According to the product description from Weistec Engineering this is a common problem on 2005-2017 GLK350s.
Higher capacity transmission oil pan
Higher capacity transmission oil pan
Common problem in 2005-2017 GLK350s according to Weistec Engineering...
Common problem in 2005-2017 GLK350s according to Weistec Engineering...
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Old Jan 30, 2026 | 11:01 PM
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From: Toronto, Canada
2010 GLK350 4matic
Knock on wood, still no issues on my 2010 non A89, but next fluid change I’ll upgrade to the smart media filter and deeper pan.
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