MGL 4 Report post Posted January 27, 2011 So my car over heated this morning, got up to temp, then just kept going! The radiator hose at the top was super hot. and the bottom one wasnt even warm. I'd going with this being a thermostat right? Is there anything else I should be looking at do you think? Cheers, Matt Quote Share this post Link to post Share on other sites
bimmer boy 21 Report post Posted January 27, 2011 Yeah I would say its the thermostat man, I had a overheating problem in my E39 which ended out being the fan clutch or something since it would sometimes stick and not spin and stand still traffic. But in your case I would say the first port of call would be to change out the thermostat Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted January 27, 2011 most likly thermostat or water pump,. also check your fan is working properly and no leaks in the coolant system Quote Share this post Link to post Share on other sites
MGL 4 Report post Posted January 28, 2011 Cool, Thermostat is on its way to me as we speak. The fan ate my newspaper, so I recon hes ok. Lets hope hes a just the thermostat for a simple fix! Thanks team! Quote Share this post Link to post Share on other sites
Jono51 59 Report post Posted January 30, 2011 I would't buy any parts until the car has been diagnosed. otherwise you will be going around in circles. Quote Share this post Link to post Share on other sites
allan 295 Report post Posted January 30, 2011 +1 to what Jono just said . The e39 has a couple of different types of thermostat fitted to them. If it turns out that this is the problem then by all means replace it along with the water pump with a metal impellor. For what it is worth check the anti freeze concentration and ph levels of the coolant as well. Quote Share this post Link to post Share on other sites
MGL 4 Report post Posted February 1, 2011 I've stuck in the new thermostat- seems to have sorted the problem. Seems to be holding almost exactly at half way on the guage. I'll keep an eye on it over the next week or so. Hopefully thats all it is! Next thing is to fix that boogie shock! Quote Share this post Link to post Share on other sites
