thermostat

The bottom one just below water pump housing. Easy if you don't have power steering and the bolts come out easy! Always use a new seal with the thermostat too!

BTW a lot of coolant will come out so catch it with a pan and YOU stay safe. Do it with the engine cold please!

later, dave Reminder........ Before you criticize someone, you should walk a mile in their shoes. That way, when you criticize them, you are a mile away from them, and you have their shoes. Frieda Norris

Neither dude, its behind your water pump. at least it was in my mark

1. Someone will correct me if Im wrong. I replaced the pump at the same time as i was told the bolts tend to break anyway and it was fairly cheap......

Buy a Bentley manual is all i can say