It's been doing this for 1 months time or so now, I know it's colder now than it was 1 month ago but it takes a lot longer time for the water temperature to get to correct working temp, I'm guessing the thermostat is starting to give up. How extensive is the work to change it myself? It's a 2014 2.0 TDI 170PS 4x4 Superb Estate.

If you have DSG then there is 2nd thermostat - for the gearbox - search forum for more info. 

To "scootie" - If the car is with automatic transmission ("DSG"), there is two thermostats. Often, the second thermostat, known as "DSG Thermostat" is the problem.

 

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Depending what you mean by a 'long time', it could be normal...

 

How many minutes/miles is it taking to get to what temperature (oil and water)?

Third for DSG thermostat

Again for the DGS thermostat. Easy to do, there are posts on here with pictures as well

Yeah, forgot to mention it's a DSG. 

And about how long time/length it takes I haven't thought about it more than on a 2hr trip the stick/meter sometimes doesn't go up to the middle on the instrument cluster and when just doing a Quick stop on a gas station it seems like it loses alot of heat very quickly.

It will almost certainly be a faulty DSG thermostat then.

If you are a DIY'r then search on here for the photo's of the DSG stat, it's located under the air box trunking, so that needs removing first.

 

Once you've expose the stat with it's rubber connecting pipes, start the engine from cold.

 

Give it a few minutes to get warm.

 

Feel the rubber pipe either side of the DSG stat.

 

If the stat is faulty  the rubber pipe will be warm both in front & behind the stat.

26 minutes ago, PipH said:

It will almost certainly be a faulty DSG thermostat then.

If you are a DIY'r then search on here for the photo's of the DSG stat, it's located under the air box trunking, so that needs removing first.

 

Once you've expose the stat with it's rubber connecting pipes, start the engine from cold.

 

Give it a few minutes to get warm.

 

Feel the rubber pipe either side of the DSG stat.

 

If the stat is faulty  the rubber pipe will be warm both in front & behind the stat.

 

Thanks for the info! 

 

I read about this coolant distribution pipe that could be changed aswell, I'm guessing it's placed in the same spot? And Another dumb question, except removing the air box what should I expect when releasing the rubber hose from the thermostat, will it be pressurised (Spelling) so I'll get sprayed with coolant liquid? Do I have to fill up with red coolant afterwards?
 

 

 

 

Edited 29 January, 20197 yr by scootie

If the engine has been running recently there would be warm coolant in there but it shouldn't be under too much pressure. You will need to top up the coolant to replace whatever is lost while replacing the thermostat. One solution here is collect the coolant drained out into a clean container and put it back in when you're finished the job. Otherwise I think it's VAG G13 you need (or a compatible type). A dealer or competent motor factors should be able to advise you here.

The correct coolant is usually printed on the expansion bottle...

 

You guys sure art.nr 1K0 121 113 A fits Engine code CFGB ? Doing a search on some Swedish stores gives me another thermostat suggestion, I'm guessing that's the normal thermostat and not the DSG one.

Any chance this coolant pipe is involved in the DSG-thermostat change? I mean if it will break in the same instance that I start to change the thermostat.

 

Not really sure where this pipe sits though, 

 

Is it placed where someone has marked FORGRENER? 

 

 

Massive thank you to all of you for all the help! 

 

 

 

 

 

 

Edited 29 January, 20197 yr by scootie