MK5 Golf GTI

General => New Member Intro's => Topic started by: Matt200 on February 20, 2016, 12:02:29 pm

Title: Mk5 golf Gti temperature needle up and down
Post by: Matt200 on February 20, 2016, 12:02:29 pm

When driving slow around town or idling my temp needle goes to 90 no problem, as soon as the speed goes up to 40+ the needle comes back down again. I've changed temp sensor near to the battery but no difference. Has anyone on here had the same problem? Can u point me in the right direction as to someone who has resolved the problem?
Also when I changed the sensor I noticed a coating of oil where the clutch is, maybe someone will know what's causing this also?
Thanks in advance Matt.

Title: Re: Mk5 golf Gti temperature needle up and down
Post by: AJP on February 20, 2016, 12:50:41 pm

Sounds like one of the thermostats. There's a main one and an inline one.

See if you can find someone local with VCDS.

Title: Re: Mk5 golf Gti temperature needle up and down
Post by: Shoduchi on February 20, 2016, 01:45:25 pm

Pre-2007 (or something like it) DSG versions have 3 thermostats.

Title: Re: Mk5 golf Gti temperature needle up and down
Post by: Matt200 on February 20, 2016, 08:39:21 pm

I just watched a video on how to get the thermostat out on YouTube
it looks like a days work to me