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Kevin, Master tech
Category: Mercedes
Satisfied Customers: 2180
Experience:  Diagnostic technician
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Does the cooling fans come on as a/c turns on? It's

Customer Question

Does the cooling fans come on as a/c turns on?
It's regardless the 2000 Mercedes c230
This vehicle has two fans at front of the condenser and one that is driven by the belt (mechanical)
Thank you
Submitted: 1 year ago.
Category: Mercedes
Expert:  Kevin replied 1 year ago.
Hi im kevin how can we help ?
Customer: replied 1 year ago.
Where is the answer ?
Expert:  Kevin replied 1 year ago.

I did write back on the 18th requesting more info on your question as to what help you required .does fan only run when ac on ?not running without ac on ?

Customer: replied 1 year ago.
I didn't see any respond
But any way
The front two cooling fans don't come on at all when a/c is on and a/c will blow warm air at idle but at driving conditions it works good
Expert:  Kevin replied 1 year ago.

fan should run to cool the warm gas inside condenser .wont come on instantly but after ac has been running for a couple of minutes fan will come on and off as needed .does cooling fan work when engine is left to get warm ?

Customer: replied 1 year ago.
The main cooling fan that is driven by water pump and belt is the one that I would say cools the engine and a/c to extend
I have tested the fans manually they do work
Also had main cooling fan module replaced and didn't help stayed the same , didn't turn the fans on when a/c was turned on
Expert:  Kevin replied 1 year ago.

the fan on the engine runs full time then when engine gets hot one of the electric fans cuts in and out to further regulate engine temperature .the other fan is for ac

Customer: replied 1 year ago.
My question what's else could be the cause of no fans when a/c is on?
Expert:  Kevin replied 1 year ago.

its either a wiring issue to and from the fans or a temp /pressure sensor fault on the ac system .have you had ac scanned for fault codes?

Customer: replied 1 year ago.
No I haven't
Where is the pressure switch is located?
Expert:  Kevin replied 1 year ago.

it screws into receiver drier behind the drivers headlamp

Customer: replied 1 year ago.
is their is any other sensors that could be the problem to the cooling fan beside the wiring?
Expert:  Kevin replied 1 year ago.

im goimng to opt out my info on this model is restricted to more detail another tech may have more detailed info