I have a BMW 352i 2001 a few weeks ago I went to Hastings got 30 minutes into the trip and the coolant warning light came on so bought some coolant and topped it up seemed to be ok then did it again and noticed that it was leaking quite a bit and leaving a pool underneath all seemed fine then 2 weeks later the coolant warning came back on any ideas! It's not overheating or anything
andrea_w,
Feb 10, 6:23pm
Err yeah. fix the leak.
carmedic,
Feb 10, 6:24pm
Don't go to Hastings or get the leak fixed.
mikekylie,
Feb 10, 6:28pm
I had the water pump and thermostat fixed and seemed fine and now is leaking again but not as bad just wondering what it could be
richard198,
Feb 10, 6:40pm
Where is the leak coming from!
mikekylie,
Feb 10, 6:45pm
I have no idea replaced the water pump and thermo and both o rings were quite worn so figured it was that. I can't see where it's leaking for So has me stumped I thought maybe exspantion tank Or worst case the head but wouldn't that cause it to over heat
richard198,
Feb 10, 6:48pm
It can't be fixed until the source of the leak is established. Guessing doesn't work. Either look closer/harder or get someone else to look.
rob_man,
Feb 10, 6:57pm
Possibly a hose clip that needs to be tighter or aligned properly on the hose. Or a hose could have sprung a leak from being disturbed.
andrewph,
Feb 10, 7:29pm
Take it to a garage and get them to pressure test the cooling system. They use a hand pump and an adaptor that connects to the filler and pump it up to the release pressure of the cap. That will show up any leaks. Usually suspects are any of the black plastic outlet housings and o rings. Especially the one on the back of the head to the heater hose. BMW and late VW/Audi ones crack. its common.
mlh19658,
Feb 10, 7:36pm
Get yourself something, anything that's not Euro. I speak from expensive experience. They might look great, but all they are is vortex that will suck every penny you have and don't have.
elect70,
Feb 10, 8:54pm
Plastic header tanks known to leak if its been overheated .As above get a pressure test .
dvince,
Feb 10, 9:17pm
Well thats one way to fix a coolant leak.
mikekylie,
Feb 10, 9:31pm
Thanks for the advice :)
mlh19658,
Feb 10, 9:52pm
Sorry, Mike. Will NEVER get another car with indicator stalk on the left. EVER!
kazbanz,
Feb 10, 11:34pm
um what engine does that beast have in itbeing a 352 -5 liter v12!
jason_247,
Feb 10, 11:47pm
those cars are renowned for breaking the expansion tank where the small hose joins on at the bottom
icemans1,
Feb 10, 11:57pm
you should be able to see some coolant spray marks in the engine bay somewhere, then try to pin point where it might be coming from
mlh19658,
Feb 11, 12:09am
I rest my case.
motorway,
Feb 11, 12:32am
<--this.
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