No heat from the Vents?
Thread Starter
Member
Joined: Jun 2007
Posts: 86
Likes: 0
From: SF
E320 2003
No heat from the Vents?
First off, I had the Red change battery light come on so I replaced the AUX battery and "normalized" the system. My windows work perfectly however my AC, when I turn it on it does not heat up. The fan blows perfectly. I did a search and was wondering is this related to my Aux battery being changed or I need to change the heat change over valve many people have problems with?
Also when your engine is on at night, if you open your front door, does the rear dome light turn on? mine does not...
Also when your engine is on at night, if you open your front door, does the rear dome light turn on? mine does not...
Senior Member
Joined: May 2011
Posts: 250
Likes: 1
From: Earth
2012 W212 | 2016 W205
Mine wasn't working, so i checked the collant level and i found it was down a bit. Topped it right up and now it's working fine again.
Give that a shot and see how you go. If it still doesn't work it could be the valve that needs replacing.
Give that a shot and see how you go. If it still doesn't work it could be the valve that needs replacing.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 3,254
Likes: 15
From: Louisiana
03 E500 and Corvette
When I had no heat it was the temp control valve mounted on pass side under hood at firewall. Do a search you will find al the procedures to change it,,I think it might even be in the sticky's at the beginning of the threads.
MBWorld Fanatic!
Joined: Mar 2004
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From: Ft. Lauderdale Area, USA
2015 ML 350
