jere.o988

Hello guys I got a 2014 Mercedes GLK250 4Matic. I recently replaced the boost hoses back in late May early June.

(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.

jere.o988

So I erase all the codes and now I have one code P245B. I did went for a short drive around the block. So I assume it’s something to do with the EGR. I found out a page saying it could be a vacuum hose.

andreigbs

I'm not sure if you've had the updated software for the water pump; if not, you definitely should. And if still on the original water pump which is plastic, I would plan on replacing it with the updated metal version along with a new drivebelt and tensioner, and complete it with new coolant.

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.

jere.o988

My vacuum hose that controls my turbo waste gate actuator was ripped. I just replaced it. Cheap and easy fix. But now I have other problems but this time I don’t have a CEL

andreigbs

Just because there is no active CEL doesn't necessarily mean there are no error code(s) stored. Do a scan and see, post any codes.

What problems are you noticing?