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Model specific boards => Golf mk4 => Topic started by: skidd on 10 October 2012, 11:20

Title: Air con faults/repairs
Post by: skidd on 10 October 2012, 11:20

Is there a complete guide to the Aircon system in a MK4?
I have done a complete search of posts and guides and cant find one :sad:

I just bought a MK4 1.8t for my Girlfriend and cant get the Air con system to work, so would be nice to check it all before i stick it in to specialists.

Title: Re: Air con faults/repairs
Post by: rio_gti on 10 October 2012, 16:52

check the green fuses on top of the battery give them a wiggle whilst the air con is on, to see if the compressor kicks in  :wink:

Title: Re: Air con faults/repairs
Post by: skidd on 10 October 2012, 21:37

Thanks Rio, but how will i know if it does? has it got a distinguishable noise to it.
Sorry i am unfamiliar with the MK4 1.8t engine bay layout and i have no manual to help recognise parts/area yet

Title: Re: Air con faults/repairs
Post by: rio_gti on 10 October 2012, 21:55

with the engine running the revs will drop when it cuts in  :smiley:

dont worry mate you will get used to it  :wink:

Title: Re: Air con faults/repairs
Post by: skidd on 11 October 2012, 10:55

I have check all Fuses and everything is good.
But from reading other forums about this problem my understanding is that when the engine is running and i switch on the AC the fans should run at low speed.
Unfortunately they are not.
But when the engine gets hot enough both fans are kicking in.
Need to do a bit more reading/understanding but from what i gather so far my fans are knackered and i need to replace them or wire in a couple of resistors.

Title: Re: Air con faults/repairs
Post by: skidd on 11 October 2012, 13:36

Managed to check, the fans are working on both speeds so that's one less thing to worry about...............the search continues!