barbaraguenther28
Mercedes CLA engine stalling at idle
Summary of the thread
A 2022 Mercedes CLA with a gasoline engine is experiencing stalling at idle and a check engine light is on. The problem is suspected to be related to the idle air control valve or a dirty throttle body. A professional diagnosis is recommended to check for intake contamination and air leaks. The issue was confirmed to be a faulty idle air control valve and a dirty intake, which was resolved at a workshop.
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4 comment(s)
barbaraguenther28 (community.author)
Air leaks How would I even check for those Is that something I could do myself or am I better off just taking it to someone who knows what they are doing
moritz_mystic24
Checking for air leaks can be tricky without proper tools Given the stalling and error codes a professional diagnosis is advisable It does sound like a faulty air valve or related issue The intake contamination is probable A workshop can properly inspect the throttle body and air valve
barbaraguenther28 (community.author)
Thanks for the advice Took it to a workshop and you were right It was the idle air control valve and a filthy intake Cost me 425€ to get it sorted but at least it is running smoothly again Appreciate the help
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MERCEDES
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CLA
moritz_mystic24
The symptoms you describe combined with the error code do point to a potential issue with the idle air control valve A contaminated intake is a likely culprit Have you checked for any obvious air leaks