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Thermostat replacement
Posted: Thu Mar 31, 2011 8:22 pm
by Martin123
Hi all, I want to replace the thermostat in my 1989 325. The Haynes says I have to drain the coolant, is this really necessary?
Cheers
Martin
Re: Thermostat replacement
Posted: Thu Mar 31, 2011 8:25 pm
by jann
Yep, since the thermostat open/closes to cool the engine.
Re: Thermostat replacement
Posted: Thu Mar 31, 2011 9:15 pm
by Brianmoooore
A good deal of the coolant is coming to come out anyway when you remove the thermostat elbow, so it's probably a good idea to drain it first! Why wouldn't you?
Re: Thermostat replacement
Posted: Fri Apr 01, 2011 8:03 am
by Martin123
Thanks for your replies. Thought I could make it a quick job but I see I'll have to drain, it needs it anyway.
Cheers
Martin
Re: Thermostat replacement
Posted: Fri Apr 01, 2011 12:23 pm
by ucpsale
Good idear to raise the front when draining and when you have the stat cover removed make sure the bleed hole is clear before refitting.