Hi everyone new to bmw forum. I am a member of the LDV-Sherpa forum because of the problems ive had with my work truck, but funny enough i have never had any problems with me BMW 525 till now, sorry thats why i joined your forum! Thanx again! My problem is i had to change my thermostat which i done, had to take fan off to get to the bold on the housing but i got there! The problem is i sheered one the the bottom housing bolts off, i still carried on putting it all back together, filled overflow tank etc, and i looked at where i sheered the bolt off and its leaking! I was well annoyed with myself! What can i do to get a new bolt in there? This time ill also put some instant gasket on it, the bolt i sheered is the drivers side bottom bolt! Would gasket sealer work or will it need a bolt back in there! Help!!