Hi all,

Does anyone know where the thermostat is on a skoda fabia 2014 1.6 tdi reg Yn64wdc if that helps. ?

Much appreciated

Front of block, halfway up. Item 21 for this reg.

Car Parts Catalog - LLLParts

Part number shown there has been superseded by 03L 121 111 AN

I had a code fault on my old reader stating coolant circuit open. I believe it's down to the thermostat being stuck open after a temporary repair I did using a kind of steel seal product to stop a coolant leak

Sounds more like a description of an electrical fault. What was the fault code number?

P261a00 and p261ab00

Have a google of those, you'll probably find a few results in this forum amongst other places. Definitely electrical, not to do with thermostat. Coolant pump B seems to be the item involved, but wiring/connections to it may well be the issue rather than the pump itself.

I also seem to remember that there can be confusion about identifying the correct pump, as there may be more than one.

Yeah I've just chat gtp'd it. It's pointing me to secondary pump that is electrically activated. Going to have a look at it in a bit.

After replacing the pump which is situated at the bottom of the engine how do I refill the system with coolant I.e. bleeding