100% Free

No Scanner Needed

Carly logo
Prices

richardsilber4

C Klasse check engine light and stalling issue

My 2010 C Klasse with a Gasoline engine has a check engine light and stalling engine. Any ideas?

Summary of the thread

A 2010 C Klasse with a gasoline engine experienced a check engine light and stalling issues. The problem was suspected to be related to a dirty throttle body or a faulty Idle Air Control (IAC) valve. After inspection, the IAC valve was identified as the cause, leading to its replacement and cleaning of the throttle body, which resolved the stalling and check engine light issues.

Did this summary help you solve your problem?

4 comment(s)

hannessilber7

Sounds familiar. I had a similar issue with my Mercedes C Klasse. The check engine light would pop on and the engine would sometimes stall when I stopped at lights. Does it happen more when the engine is cold? It could be a dirty throttle body or a faulty IAC valve, like a clogged artery in your car's breathing system. Have you checked those?

richardsilber4 (community.author)

Thanks for the quick reply. You mentioned the IAC valve. Where exactly is that located and how difficult is it to clean?

hannessilber7

The IAC valve is usually attached to the throttle body. Finding it can be tricky. Some models have it easily accessible, others bury it. Cleaning it isn't rocket science, but you need to be careful with the electronic components. Given your description and the mileage it is likely related to a heavily contaminated intake system. Honestly, if you're not super comfortable working on engines, I would suggest taking it to a reputable workshop. The error memory definitely needs reading. My eventual repair cost was around 425€.

richardsilber4 (community.author)

Thanks for the input. I took your advice and had it checked out. Turns out the IAC valve was indeed the culprit, just like you thought. They cleaned the throttle body and replaced the valve. Car idles perfectly now and the check engine light is off.

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

CKLASSE