teabag
Senior Member
- Joined
- Jan 31, 2009
- Messages
- 705
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- Location
- North East England
- Your Mercedes
- 2001 W163 ML270 CDI
I've just aquired a 1995 SL280 without air con and the heater vents on both sides are constantly emmitting hot air regardless of the settings on the 2 rotary controllers.
I have replaced the 3 port "Duo-Valve" (A000 830 65 84) but the problem still persists. after reading various threads on the same subject, I think it may be the interior temperature sensor in the roof lining at fault but I am unsure as to how to access this to check/replace it, please can anyone provide some advice.
Also the engine coolant temperature seems to be very low at around 65 degrees according to the gauge, is this correct.
Thanks in advance
I have replaced the 3 port "Duo-Valve" (A000 830 65 84) but the problem still persists. after reading various threads on the same subject, I think it may be the interior temperature sensor in the roof lining at fault but I am unsure as to how to access this to check/replace it, please can anyone provide some advice.
Also the engine coolant temperature seems to be very low at around 65 degrees according to the gauge, is this correct.
Thanks in advance