On my Vauxhall Astra 1.6 8v engine. The thermostat was on the left hand side of the engine behind the rear timing belt cover were the coolant hose leaves the engine to the radiator. hope this helps
You will find the thermostat in the t.stat housing bolted to the front of the cylinder head.Unfortunately like similar vauxhall engines,to get at it involves removing the cambelt and it's rear...
The release lever is on the drivers side of the car (for Right hand drive cars) down by your feet. If pulling the lever is not working, pull the lever, and get a second person to gently thump the...