Hi all, 

 

New to the forum. I have a 2016 2 litre diesel Superb and suspect my dsg thermostat needs replacing. Temperature guage up and down, as is the actual temperature. I followed some links and videos, have removed airbox, can see the dsg intercooler, but still can't see the thermostat. There is a long solid hose which I think is blocking it, don't want to go to the bother of removing it, only to find out it's not there! 

. 

If the engine temp is going up and down, what makes you suspect it’s the DSG thermostat that needs to be replaced? 

Hi, thanks for replying, reading up on similar posts, the Skoda and VW cars with the dsg gearbox all suffer from this problem. There are videos available showing the dsg thermostat being replaced, but all seem to be mark 1 or mark 2 superbs , can't find any relating to the mark 3.

Mk3 is not Mk2 nor Mk1.

As far as I can remember, never read any DSG thermostat issue thread concerning Mk3 here over the last 5 years... 🤔

Edited 21 January, 20233 yr by Bap33

Look in the Yeti section.  Guide section. Thread there. 

16 minutes ago, Bap33 said:

Mk3 is not Mk2 nor Mk1.

As far as I can remember, never read any DSG thermostat issue thread concerning Mk3 here over the last 5 years... 🤔

That's what I'm now thinking, does the Mk 3 not have the second thermostat, hopefully somebody can clarify 

Mk1 or Mk2 Superbs did not have DSG gearboxes.

 

Do you mean EGR ??

1 hour ago, k.young said:

Mk1 or Mk2 Superbs did not have DSG gearboxes.

 

Do you mean EGR ??

Look again. Plenty MK2 dsg superbs on autotrader.

Pretty sure they are DQ250's as an option on Superb II's

For sure there were.

 

 

4 hours ago, MarkyG82 said:

Look again. Plenty MK2 dsg superbs on autotrader.

 

Oooops.......I am, of course, mistaken.

Still doubt a DSG temp change would cause the temp gauge to indicate it. @LingT what directly DSG related symptoms do you have, which indicate you have a DSG issue and not an issue with the engine coolant? 

13 minutes ago, numskull said:

Still doubt a DSG temp change would cause the temp gauge to indicate it. @LingT what directly DSG related symptoms do you have, which indicate you have a DSG issue and not an issue with the engine coolant? 

The gearbox is running perfectly, it's cooled by the main coolant circuit, which is taking forever to heat up, and when cruising downhill the temperature gauge drops down the bottom of the scale, and other posts on here and other forums point to the DSG thermostat.

9 hours ago, LingT said:

The gearbox is running perfectly, it's cooled by the main coolant circuit, which is taking forever to heat up, and when cruising downhill the temperature gauge drops down the bottom of the scale, and other posts on here and other forums point to the DSG thermostat.

Have you had the water pump shroud inspected?

if it’s stuck in the always open position then there won’t be any temperature regulation to keep the temperature up.

 

not sure about the tdi but on the newer tsi they done away with the dsg thermostat instead replacing it with an electronic valve which is bolted too the engine just above the gearbox.

2 hours ago, ApertureS said:

….not sure about the tdi but on the newer tsi they done away with the dsg thermostat…

Any idea when this was implemented, AS?