No heat from the Vents?

Fabboi · 04-07-2012, 12:37 AM

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...

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Fabboi · 04-08-2012, 03:25 PM

Really? not even 1 person?

willy_manilly · 04-09-2012, 08:35 AM

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.

vettdvr · 04-09-2012, 08:39 AM

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.

Barry45RPM · 04-09-2012, 10:25 AM

Quote:

Originally Posted by Fabboi

...when your engine is on at night, if you open your front door, does the rear dome light turn on? mine does not...

No, it goes on only when the rear door is opened. Overengineered?

Fabboi · 04-11-2012, 04:29 AM

Thanks, i never notice the rear light off until now, guess it not my battery fault. Also my time to deal with the temp valve has came

DAMN YOU W211 AND ALL YOUR RANDOM PROBLEMS!

04-09-2012, 08:35 AM	#3
willy_manilly Member Garage is empty, add now Join Date: May 2011 Location: Melbourne, Australia Posts: 200 Drives: 04 E W211	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. __________________ Mercedes-Benz Command Screen Protectors, $4.99 Posted HERE

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04-08-2012, 03:25 PM	#2
Fabboi Member Garage is empty, add now Join Date: Jun 2007 Location: SF Posts: 86 Drives: E320 2003	Really? not even 1 person?

04-09-2012, 08:39 AM	#4
vettdvr MBWorld Fanatic! Garage is empty, add now Join Date: Mar 2006 Location: Louisiana Posts: 2,817 Drives: 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.

04-11-2012, 04:29 AM	#6
Fabboi Member Garage is empty, add now Join Date: Jun 2007 Location: SF Posts: 86 Drives: E320 2003	Thanks, i never notice the rear light off until now, guess it not my battery fault. Also my time to deal with the temp valve has came DAMN YOU W211 AND ALL YOUR RANDOM PROBLEMS!

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