W204 C250 CGI heating issue - help needed

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FunkMasterJay

Active Member
Joined
Nov 17, 2010
Messages
131
Location
Milton Keynes
Car
W202 C200 Sport Auto
Hi guys.
I have a 2010 W204 C250 CGI and I'm having issues with the air conditioning / heating.

The A/C failed on me in the summer. I remember it being lacklustre - but it worked OK. All of a sudden it just failed on a hot day. I had it pressure tested and re-gassed.

Roll on the cooler weeks we've had, and now the heating is very poor. The dial is on MAX and still barely any heat. Coolant temperature works very well and stable at 90°.

Some research has led me to believe the Heater Control Valve is the culprit. My car has dual zone climate control.

I would be most grateful if...
1. Someone can confirm the part number.
2. Provide a How-To to replace this part. So far YouTube and Google lead me to other models / LHD cars.

Many thanks.
 

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