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Model specific boards => Golf mk4 => Topic started by: Leach01 on 28 March 2014, 07:44

Title: Coolant temp low
Post by: Leach01 on 28 March 2014, 07:44

First thing I'm new on this forum.

My car is: 20v 1.8t mk4 GTI

Right, problem is my car won't get to 90 degrees and then stay there like they should.

I had an eml on so scanned it and it said coolant temp sensor.

So after replacing it still not getting to temp.

So on the way to work today I tailgated a car for a bit and it goes up slightly.

When driving norm it stays around 70 ish.

And if you get it tick over on idle she slowly goes to 90 and the doesn't go further.

So ether thermostat or water pump.

Anyone got any insight on this!

Title: Re: Coolant temp low
Post by: topher on 28 March 2014, 08:35

classic symptoms of a faulty thermostat

Title: Re: Coolant temp low
Post by: WadGTI on 28 March 2014, 12:30

Quote from: topher on 28 March 2014, 08:35

classic symptoms of a faulty thermostat

+1. Overcooling

Title: Re: Coolant temp low
Post by: Leach01 on 28 March 2014, 13:28

Ah, nice to have that confirmed! Not to fix it :)

Title: Re: Coolant temp low
Post by: topher on 28 March 2014, 17:11

Buy from the dealers don't be tempted with cheap GSF or eurocarparts thermostats they're complete junk. While you're in there you might save yourself some potential headaches by getting a new thermostat housing at the same time.. they tend to warp over time and dribble coolant even with some sealant behind them.

Title: Re: Coolant temp low
Post by: dom on 28 March 2014, 19:56

Just to reiterate what Topher says, I fitted a cheap Thermostat last year and it failed in less than 2 weeks!

Title: Re: Coolant temp low
Post by: Leach01 on 29 March 2014, 21:12

Ok. Well today after getting one from mill autos. Has fixed the issue! So thanks guys!