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Premium Member
2004 CLK 240 Coupe
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11,385 Posts
Stan -- this is the wrong forum for your car. This is for post 2012 B-range models

Your B200 would be in the W245 forum.

However, I have searched the WIS documents, and it seems that for your engine (266.980) MB no longer use the hot film mass air-flow sensor system for mixture control.

That's why nobody can find it.
 

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Premium Member
2004 CLK 240 Coupe
Joined
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11,385 Posts
The original question is also valid for model W246 with engine M270, there are versions of this engine with/without CODE 920 (gasoline direct injection with stratified charge.) I do not know if CODE 920 is a customer option, or is determined by the market location - as some emission features are.

With CODE 920 the engine has a MAF sensor plus the EGR and NOX control components.
Without CODE 920 the engine has no MAF sensor or EGR and NOX control components.

This can be seen on the WIS drawing below which shows the location of the MAF sensor (B2/5) where required.
 

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B200 / 2006
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Discussion Starter · #5 ·
Thank you so much for the info.
My engine is 266 so it may not have MAF sensor as you said.

My apology for the wrong forum, but W245 doesn't mean much to me. Now I know.

Thanks
 
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