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Model specific boards => Golf mk4 => Topic started by: rench on 29 May 2012, 20:32

Title: AUQ overheating problem
Post by: rench on 29 May 2012, 20:32

my anni keeps overheating on the dial since i give it some stick the other day, changed coolant sensor but still keeps saying stop check coolent temp, idels fine at 90' but drive it and put foot down abit and it goes up. checked coolant bottle after it said stop today and that wasnt red hot? could it be another faulty temp sensor?

Title: Re: AUQ overheating problem
Post by: johnnyvr6 on 29 May 2012, 20:34

sounds like a coolant temp sensor

Title: Re: AUQ overheating problem
Post by: rench on 29 May 2012, 20:37

thats wat i thought changed it for new en but still same could it be a falty sensor? also if it was overheating then wouldnt it overheat whilst iderling?

Title: Re: AUQ overheating problem
Post by: johnnyvr6 on 29 May 2012, 21:02

could be mate

Title: Re: AUQ overheating problem
Post by: richw911 on 29 May 2012, 21:28

Water pump......

Title: Re: AUQ overheating problem
Post by: Dalo Harkin on 30 May 2012, 06:58

To check if the water pump is ok - take the tube that connects to the top of the coolant bottle off and hold it over where you put the coolant into the expansion bottle, and turn the engine over, you should have a steady stream of coolant from that pipe.

have you noticed leaks or loss of coolant?
Checked all coolant pipes?

Title: Re: AUQ overheating problem
Post by: rench on 30 May 2012, 09:09

no loss of coolant or anything, i will give that ago this afternoon then see what happens

Title: Re: AUQ overheating problem
Post by: Granta Gti on 30 May 2012, 11:46

Let it get up to temp and keeping it idling and see if the fans kick in

Title: Re: AUQ overheating problem
Post by: rench on 30 May 2012, 12:23

Fans kick when it gets right up on temp gauge but then temp
Comes down pritty quick when iderling

Title: Re: AUQ overheating problem
Post by: harlemex on 30 May 2012, 12:50

sounds like gas in the system needs bleeding. Let it idle with the coolant cap off. Remember to let it cool down first, then let it get up too temp with the cap off. Give hoses a good squeeze while u wait. Also thermostat might be sticky..

Title: Re: AUQ overheating problem
Post by: barrym381 on 30 May 2012, 14:10

Quote from: richw911 on 29 May 2012, 21:28

Water pump......

my guess would be this also  :smiley:

Title: Re: AUQ overheating problem
Post by: rench on 30 May 2012, 15:59

took top hose of coolant bottle and run with cap of nothing came out only a small amount of coolant when i was squeezing pipes, that meen its the water pump then? heaters still kicking warm air out though?

Title: Re: AUQ overheating problem
Post by: richw911 on 30 May 2012, 16:58

Quote from: rench on 30 May 2012, 15:59

took top hose of coolant bottle and run with cap of nothing came out only a small amount of coolant when i was squeezing pipes, that meen its the water pump then? heaters still kicking warm air out though?

Yep the impellor will be spinning on the shaft. When was the cambelt last changed?