I try to look thermostat location today, but i didn't find it :-)

 

Can someone help me and tell me where is it and is it possible to change it easy way or is it somewhere hard place?

Mounted on water pump unit. Not a simple job to replace it ...

 

https://www.briskoda.net/forums/topic/435324-2012-octavia-vrs-20tsi-fl-water-pump-on-the-way-out/

 

http://workshop-manuals.com/volkswagen/golf-mk6/power_unit/4-cylinder_injection_engine_(1.8_and_2.0_l_engine_chain_drive)/engine_cooling/coolant_pump_thermostat_coolant_pipes/removing_and_installing_thermostat/

 

http://workshop-manuals.com/audi/a3_mk2/power_unit/4-cylinder_direct_petrol_injection_engine_(1.8_ltr._2.0_ltr._4-valve_turbo)_mechanics/engine_cooling/parts_of_cooling_system_(on_engine)/removing_and_installing_thermostat/

 

Edited 16 January, 20188 yr by rayx

It doesn't look simple but not as bad as i expect. 

I scared that i have to take hole unit down before i get access to thermostat, but as i understood right i can change it on  it's place? :-)

Only have to remove "few" parts on the way.

 

Does anyone know how is situation with coolant pump + belt?

When those have to change?

VAG does not specify any interval when to change pump and it´s belt. But be ensured, shaft sealing (just lip seal  SAB 12.20.07 from VR-Automotive ... ) in that pump will not last forever, I reckon 150k km as maximum