Volor

I am pretty sure when I was researching about the DSG thermostat, I came across an article that stated some Skoda Diesel engines have two thermostats. One located top of engine and easy to get too, and one buried within the bottom of the engine. I however could be mistaken.

You will also find fuel consumption improves by quite a few mpg. Is amazing how many VW dealers do not know about this on the DSG gearbox.

Glad it helped.

A good independent should be willing to fit parts supplied by yourself, just don’t expect warranty on the part once fitted. Find an independent used to working on VW group vehicles.

Excellent article, so many thanks. Had to replace my drivers base seat element today. Really well documented process. Two things I found, old element could be easily pulled off with careful use of a Heat gun, without tearing foam. Did not remove back seat but removed top bolts on either side holding back seat and loosened bottom bolts, this allowed me to lay whole seat out flat and not have to disconnect the two cables connected to the back seat.

Blue103TDIDSG, seems you have moved your post. From experience if the DSG thermostat is working properly, engine should be up to temp within 2/3 miles. If DSG thermostat is faulty If you go freewheeling (nice long hill is useful) you will see the gauge drop even in warm ambient temp. Final check is you should see an oil temp of at least 80, after only a few miles. If it takes a long while and requires vigorous driving to get the oil temp to 90, again suggest it is the DSG Thermostat and not main Thermostat. Hope this helps.

Glad it all worked out.

Oh yeah, don't forget to put the protective rubber guard back on new thermostat, and note coolant flow indicator on old and new thermostat. Like u in my younger days would have dived in. I set aside a day for it and completed in 3 hours as I really took my time. Realistically should be about a 1 hour job. Obviously do this with cold engine, and do NOT take off the Coolant tank lid, this will stop the coolant flowing out when u remove thermostat and hose assembly off DSG cooler.

OK, I found this You Tube video most helpful in removing the Air Box, etc. Re special tools, You will need LARGE Pliers especially the very large Hose spring clip on the airbox. If the spring clips on the hoses look really badly corroded, you may want a spare jubilee clip or 2 incase they break when you try to open them. I found it easier to remove the Thermostat and its attached hoses as one unit off the DSG Cooler, and then undo and replace the Thermostat unit on the workbench. Loss of fluid this way is less than a cupful. You will need to slowly prise off the hoses from the metal DSG cooler fittings, once you have moved the clips back onto the middle of the hose. I used a wide flat bladed screwdriver. Now to the Thermostat itself. Yes there are many available at different prices, and that is because they all have different Temperature opening settings. You tend to find that the cheaper units have a lower opening Temp, as they are for other VAG models, that require different opening Temps in the DSG cooler. For the DSG on the Yeti, you want an opening Temp of 75.C not any lower, Else Consumption, smoothness of gear change, etc will be effected,

Guys, Thank you ever so much for this post. Last Autumn, coolant temp just plummeted, fuel consumption increased, DSG gearbox got snatchy, and worse of all.... Heating was awful this winter. Changed the DSG Thermostat today...... Back to how it was the day I bough my Yeti.