Very Strange Issue With My 1.8 T

[Female_Golfer]

The car behaved a little differently tonight. When it got warm, between 90 and 130 it felt sluggish and lacking in power. The fan actually came on tonight, I hadn't noticed that on before.

[Female_Golfer]

That's 90 and 130 on the temp gauge not the speedo. Lol

[topher]

i'd avoid driving it until you get it sorted, you don't want to cook it.

[Nino]

When I first got my GTI my car was doing the exact same as you althou my power was ok. I didnt notice however that my MPG was bad as in lower than what i get now, I was lucky to hit the early 20's on the MPG mark. I changed my Temp sensor & termo (was a fatherless son to change the thermo) both for gen parts then I cleared my codes and my car got to 90 and stayed there, I also noticed my MPG got alot better about 27 around city and 34 on B roads & late 30's early 40's on motorway this was about a month after owning my car which strangely enough had a new cam belt & water pump fitted before I got it I later found out that they over tightend my engine mount bolts and 4 months later they snapped in my block costing me a good £700 to have the old bolts drilled out and new mount supplyed.

If i was you, I would book your car into VW, have your Cam belt, Water pump and tenioners & I would also request your thermo to be changed along with a GEN Temp sensor & request your engine mount bolts to be changed.

By VW doing it and not a VW specialist you will have a 2 year warranty with VW, if you engine breaks they will do a full rebuild for FREE! a specialist would prob source a 2nd hand engine and replace. (could be wrong thou)

I recon it will cost you, about £450 max for all the work and you will have a nice VW stamp in the book, you may as well get them to do a full service while they are at it. at least then your car should be runnig 100% and you wont be a debt with a mk5.
Hell if for some unknown reason your car should by some unknown reason to the whole human race still have that problem, *cough* VW Warrenty*Cough* "it was running fine until it came in for a service and cambelt change"

Other than that if you wanted to try your hands at a thermo change, follow the link below, the only hard part is getting to the top bolt, you can easly round off the bolt so make sue you got a correct tool you will think that by removing the alterator would make it easyer, truth is, it will be it CAN be done if you take your time

http://www.golfgtiforum.co.uk/index.php?topic=101783.0

[Female_Golfer]

Thanks for that reply Nino, really appreciate it.

I noticed just this morning that the mpg was/is shocking, I bet it's around the 20mpg mark. Normally I'd see early 30's without trying.

I'll have a think about it today, I could get the work done like you have said and then keep the car for another year or so.

[Nino]

Thanks for that reply Nino, really appreciate it.

I noticed just this morning that the mpg was/is shocking, I bet it's around the 20mpg mark. Normally I'd see early 30's without trying.

I'll have a think about it today, I could get the work done like you have said and then keep the car for another year or so.

That will defo 100% be your non-gen temp sensor causing that.

[kuvalee]

Hello, I live in huddersfield and work at Huddersfield Vw so I know all the mechanics some who do work on the side. If you want some one to have a look at it I can give you there number?
I also know the owners of vas tech on Manchester road and ivs Vw specialists on Manchester road both are very good.

[harlemex]

amazing how much help people offer you because you are a woman 

[Wazzzer]

48 replies and counting

[james2]

change the thermostat first.