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Author Topic: Mk5 golf Gti temperature needle up and down  (Read 1047 times)

Matt200

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Mk5 golf Gti temperature needle up and down
« 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.

Offline AJP

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Re: Mk5 golf Gti temperature needle up and down
« Reply #1 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.

Offline Shoduchi

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Re: Mk5 golf Gti temperature needle up and down
« Reply #2 on: February 20, 2016, 01:45:25 pm »
Pre-2007 (or something like it) DSG versions have 3 thermostats.

Matt200

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Re: Mk5 golf Gti temperature needle up and down
« Reply #3 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