Need help with 14 GLK250
(https://www.benzworld.org/threads/2014-glk250-4matic-intake-hoses-replacements.3142391/?post_id=18779882&nested_view=1&sortby=oldest#post-18779882)
Well now I’m in July and now I’m getting a bunch of errors saying turbo 1 is not making enough pressure, along with EGR cooler bypass, and some coolant issues. I read on a forum that it could be a clogged air filter, clogged boost hoses, and clogged inter cooler. I don’t wanna say it’s a turbo failure since the car sounds the same. I also replaced the hose 2045280000 thinking that was the problem but wasn’t the issue. Any thoughts on what exactly the problem could be??
Keep in mind I live in the USA I have tm configured my Foxwell to use miles rather than KM. Another think I been towing my Jetski with my GLK250 quite often ever since I fixed it. And I live in Washington state with a lot of steep up hills. I tow my Jetski fully loaded only with the car full of passengers. Idk if that could play a factor.
edit: the car has super slow acceleration above 30ish miles which I assume is limp mode. The car doesn’t sound very much different than before I started having issues.
Last edited by jere.o988; Jul 9, 2024 at 08:10 PM.
I know the above isn't the fix to your current issue, but it will need doing sooner rather than later (especially based on the first error code on your list).
As to the low power condition: it's possible your turbocharger wastegate actuator is defective. Back when my first intercooler hose popped, the dealership didn't bother checking it even though I specifically told them to. Instead, their diagnostic steps told them the wastegate actuator needed to be replaced. Of course that didn't fix my problem, but once I replaced the intercooler hose as well on my own, I immediately could tell the difference between how/when the boost comes on.
I assume yours has had the AEM work performed, so you should still (hopefully) have some of that extended warranty coverage. If so, the CEL and the low power "limp home" mode should get fixed by the MB dealer free of charge.
What problems are you noticing?






