Slow warm up

[Ant b]

Hello think I may have a small issue but am not sure,
I’ve just had a new thermostat fitted and now my car does get to 90 and stayed there,but does seem to take a while what could it be

[Dan_FR]

Depends what you mean by a while..... The drop in temperature, coupled with having the heaters on inside the car can have a massive impact on warm up time......

For instance - Mine can get up to 90 on the gauge in about 2 miles..... but if I drive gentle and have the heaters on full blast it'll take a lot longer

If there definitely is a problem then it will be caused by the thermostat you've just fitted as that is what controls engine temperature

[lukemk5gti]

It's your inline thermostat

End of

[mjmallia]

Got a similar problem where at idle the temp starts to go down a little and that points to an open inline bypass stat.

Replacing mine but noticed the new genuine replacement lets a little air pass when I blow through it..........is that ok?

[Ant b]

It's your inline thermostat

End of

We’re is the inline one

[Ant b]

It isn’t half as bad as it was but like last night it was 8 deg out and I had my heaters on,but I got out my town stopped at lights etc then drove a few mile down the duelcarrage way.
My old s3(mk1)was quicker I think

[mjmallia]

The manual AXX has it near the throttle body pipe........the DSG has another above the gearbox

[Ant b]

The manual AXX has it near the throttle body pipe........the DSG has another above the gearbox

Don’t suppose you have the part number for the inline one,tps said when I orderd the main one they only do one

[lukemk5gti]

The manual AXX has it near the throttle body pipe........the DSG has another above the gearbox

Don’t suppose you have the part number for the inline one,tps said when I orderd the main one they only do one

Info on how I replaced mine on my build thread
http://www.mk5golfgti.co.uk/forum/index.php/topic,89715.msg907250.html#msg907250

[mjmallia]

4E0 121 113

[Ant b]

4E0 121 113

Don’t understand tps and a bloke on eBay says that they only have one thermostat(main) for my engine code axx

[mjmallia]

TPS is Volkswagen Trade Parts Specialist............basically the supplier of genuince parts to dealers, but some people get accounts like myself (ex HQ and dealer employee) and gain trade price on parts.

If you do not have access to this then do throught the dealer.......just ask them if your car has the part number mentioned.....I bet money on it having one being an AXX.

[lukemk5gti]

4E0 121 113

Don’t understand tps and a bloke on eBay says that they only have one thermostat(main) for my engine code axx

He's wrong.

Mine is AXX manual and it has an inline. I replaced it myself but I don't have the part number.

The DSG has two inlines depending on the year. Same part number.

[mjmallia]

Part number is 4E0 121 113

[mjmallia]

Changed my inline stat today and the old one was wide open.  The car warms up a lot quicker now and does not drop in temperature at idle like before 😊