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Model specific boards => Golf mk4 => Topic started by: mrshakeyuk on 16 September 2010, 16:40

Title: Engine Temp
Post by: mrshakeyuk on 16 September 2010, 16:40
Hi Guys

bit of advice please, and i have done a search and couldnt really find much on my problem i have if it is one.

My engine temp only gets to 90 when the car is ticking over. When i drive it the temp goes down and only rises when i stop with the engine ticking over?

should i be worrried about this?
Title: Re: Engine Temp
Post by: Lewisf1988-DUB on 16 September 2010, 16:47
cold air goes through the radiator when driving therefore cooling the engine, when sitting idle there is no cold air flowing hence the temp rise.
Title: Re: Engine Temp
Post by: Rhyso on 16 September 2010, 16:48
Replace your thermostat

Car temp should sit bang on 90 degree once up to temperature
Title: Re: Engine Temp
Post by: Lewisf1988-DUB on 16 September 2010, 16:56
mine goes below 90 when driving at 70mph for a while  :lipsrsealed:
Title: Re: Engine Temp
Post by: Rhyso on 16 September 2010, 16:58
mine goes below 90 when driving at 70mph for a while  :lipsrsealed:

Then you got a fault  :tongue:
Title: Re: Engine Temp
Post by: T_J_G on 16 September 2010, 17:06
A thermostat fault ;)
Title: Re: Engine Temp
Post by: Lewisf1988-DUB on 16 September 2010, 19:05
Hmmm well I just changed my coolant sensor a couple of weeks ago cause there was a fault. I would have thought that, when driving at speed the cool air would cool the engine, only goes down to about 80ish
Title: Re: Engine Temp
Post by: richw911 on 16 September 2010, 19:16
Hmmm well I just changed my coolant sensor a couple of weeks ago cause there was a fault. I would have thought that, when driving at speed the cool air would cool the engine, only goes down to about 80ish

Nope should stay at 90  :wink:
Title: Re: Engine Temp
Post by: Lewisf1988-DUB on 16 September 2010, 19:25
Hmmm well I just changed my coolant sensor a couple of weeks ago cause there was a fault. I would have thought that, when driving at speed the cool air would cool the engine, only goes down to about 80ish

Nope should stay at 90  :wink:

So if I've changed the sensor, any suggestions? I ain't cleared the code since putting in the new sensor, my mate cleared it after he found it, but no doubt it's came back since then cause I waited at least a month before gettin the sensor. If the code ain't cleared would the fault still be causing a problem?
Title: Re: Engine Temp
Post by: vwfiend on 16 September 2010, 19:33
To be fair, neuspeed sell a lower stat set at 80 so the engine maintains a cooler temperature......
Title: Re: Engine Temp
Post by: Rhyso on 16 September 2010, 19:47
So if I've changed the sensor, any suggestions?

You've had two already  :rolleyes:

Replace your thermostat

A thermostat fault ;)

Title: Re: Engine Temp
Post by: Dan_GTI on 16 September 2010, 20:02
give the lad what he asked for... or do one back too club audi  :grin:
Title: Re: Engine Temp
Post by: northeast_gti-t on 17 September 2010, 00:36
As said your thermostat needs replacing your sensor should be fine if you've not long changed it preferably with the o.e.m item tho and i would fit an o.e.m stat to and as winters approaching some new G12++ coolant too
Title: Re: Engine Temp
Post by: Lewisf1988-DUB on 17 September 2010, 01:09
As said your thermostat needs replacing your sensor should be fine if you've not long changed it preferably with the o.e.m item tho and i would fit an o.e.m stat to and as winters approaching some new G12++ coolant too

ah so the temp sensor and the thermostat are different things? yea got an OEM one from VW, and i'll do a cooland change too. and reason why id use G12++ opposed to G12+? its an AGU if that helps
Title: Re: Engine Temp
Post by: northeast_gti-t on 17 September 2010, 01:39
As said your thermostat needs replacing your sensor should be fine if you've not long changed it preferably with the o.e.m item tho and i would fit an o.e.m stat to and as winters approaching some new G12++ coolant too

ah so the temp sensor and the thermostat are different things? yea got an OEM one from VW, and i'll do a cooland change too. and reason why id use G12++ opposed to G12+? its an AGU if that helps
They certainly are and its worth getting it changed soon as the weather will be getting cooler soon the G12++ is afaik just an updated coolant so to speak to replace the earlier stuff some dealers may have stock of the older stuff i don't think it makes all that much difference it could be down to the fact of the make up of the coolant,inhibitors etc etc
Title: Re: Engine Temp
Post by: Lewisf1988-DUB on 17 September 2010, 08:30
So how much is the thermostat gonna sting me? And where's it located?

Cheers for the help :)
Title: Re: Engine Temp
Post by: richw911 on 17 September 2010, 08:44
So how much is the thermostat gonna sting me? And where's it located?

Cheers for the help :)

About £15 IIRC  :smiley:

Its is below the alternator.

http://www.golfgtiforum.co.uk/index.php?topic=101783.0
 
Title: Re: Engine Temp
Post by: Lewisf1988-DUB on 17 September 2010, 09:45
Cheers rich, much appreciated. Yet another thing to buy :(