Auxiliary fans
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MBWorld Fanatic!
Joined: Mar 2010
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Auxiliary fans
Now that we have started a nice heat wave which should continue over the next days, I noticed that only one auxiliary fan up front is in operation with the A/C engaged (necessary these summer days). The A/C was topped up a couple of weeks ago and the system blows nice cold air inside.
When does the second fan kick in? Is it for the A/C or as an extra fan should the engine get very hot (not my problem) even with the viscous fan engaged?
When does the second fan kick in? Is it for the A/C or as an extra fan should the engine get very hot (not my problem) even with the viscous fan engaged?
Super Member
Joined: Nov 2001
Posts: 789
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From: Henrico, Virginia
2014 ML350 4Matic
Now that we have started a nice heat wave which should continue over the next days, I noticed that only one auxiliary fan up front is in operation with the A/C engaged (necessary these summer days). The A/C was topped up a couple of weeks ago and the system blows nice cold air inside.
When does the second fan kick in? Is it for the A/C or as an extra fan should the engine get very hot (not my problem) even with the viscous fan engaged?
When does the second fan kick in? Is it for the A/C or as an extra fan should the engine get very hot (not my problem) even with the viscous fan engaged?
Last edited by vinceC; Jul 2, 2015 at 09:42 AM. Reason: Add information.
Thread Starter
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,890
Likes: 323
From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Thanks mate! Just what I need to start looking around to be sure the fuses and relays are operational.
