100% Free

No Scanner Needed

Carly logo
Prices

vivienschmitz1

Mercedes X Klasse Diesel Engine Misfire Resolved

My 2019 Mercedes X Klasse diesel has the check engine light on at 151521 km. Fuel consumption is high and power feels low. A local shop mentioned faulty inlet VANOS mechanics, possibly camshaft solenoid valves or a power issue, and hinted at a timing chain. Has anyone else experienced similar engine misfire symptoms?

Summary of the thread

A 2019 Mercedes X Klasse diesel exhibited symptoms of a check engine light, high fuel consumption, and low power at 151,521 km. The local shop suspected issues with the inlet VANOS mechanics, possibly involving camshaft solenoid valves or a timing chain. The problem was identified as a faulty VANOS solenoid and a poor connection. After replacing the solenoid and fixing the wiring, the vehicle's performance improved significantly.

Did this summary help you solve your problem?

4 comment(s)

marieblitz1

VANOS issues are fairly common. I had similar symptoms on my X Klasse, check engine light, higher fuel consumption. It turned out to be a VANOS solenoid. Did they check the VANOS solenoid?

vivienschmitz1 (community.author)

They mentioned the VANOS solenoid. Is it a big job to fix? Is there any chance it's something simple?

marieblitz1

It could be wiring, but it's likely the solenoid itself if they scoped it out. If you want to tinker, you could try swapping the VANOS solenoids, inlet and exhaust, and see if the code changes. But honestly, save yourself the headache and let them do it. It doesn't sound like a timing chain problem.

vivienschmitz1 (community.author)

Thanks for the advice! I took it back to the shop. It turns out it was a faulty VANOS solenoid and a dodgy connection. They replaced the solenoid and fixed the wiring. Cost me 250€ all in, but it’s running great now!

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

MERCEDES

community_crosslink_rmh_model

XKLASSE