ah fantastic, thank you very much dude. i do have an after market one fitted but the connestion has broke
yeah goes bout half way up. noticed my header tank was a lil low at lunch time, prob just an air lock after flushing and re filling the system the other day. but ill keep an eye on it!
prob just bein paranoid after the head gasket went a while ago

lol
cheers for your help mate, very much appreciated!