Good morning ladies and gentlemen!

 

I've had my coolant level alarm periodically, but very little apparent actual coolant loss. 65kMiles, ~6yr old 2L TDI 184 DSG Scout.

 

Dealer has pressure tested the coolant system (2 bar for 30 min IIRC) and found no issue.

 

Sometimes the level in the expansion bottle is low enough to alarm (but still some present). Sometimes this resolves after a warm restart (I guess due to expansion)

 

I discovered that the expansion bottle was pressurised and opening the cap allowed the coolant back into the vessel.

 

Coolant and oil both appear clean.

 

Timing belt and water pump done early ~30k miles thanks to sticky valve.

 

I have ordered a sniff-test to try to check for exhaust gases heading into the coolant, but since it's so slow I wouldn't necessarily trust a -ve result on this.

 

My main priority is trying to avoid having any unnecessary work done.

 

I don't want a new EGR, or new /skimmed head, or headgasket unless that's the solution, and I want to inform myself before it goes back to a dealer, so I'd value your advice.

 

Depending on what's wrong, I'm not sure if there is a case for a grump at Skoda, I did report the problem a while ago, but might have been  >5yr and/or >60k miles. Feels like they should be life-time parts, not consumables!

 

 

Dear mods!

 

I cant seem to delete this topic.

 

I've reposted on Tech forums, so this can be pruned please.