E34 518i Expansion tank leaking
Discussion
I haven't posted in this section yet, I have had my 518i for a couple of months now and love it. Ideal for what I need and just wafts around everywhere. I picked it up fairly cheap but it is in good condition.
A few weeks ago it was overheating after about half an hours drive, this got increasingly worse until I took it to a local garage who after draining the water said the water was not getting into the engine. I had been monitoring the various fluid levels of the car and they all looked ok and werent leaking, the car was just then boiling the coolant in the expansion tank.
After I got it back it was great and I assumed it was just air in the top hoses, since then I have done roughly 500 trouble free miles. It was only this evening after roughly an hours drive and then me checking where a rattle was coming from in the exhaust that the same issue occurred.
I.e. the expansion tank boiling, I have a feeling it is internal but wanted to ask PH for any ideas/ tests to look at.
Thanks!
A few weeks ago it was overheating after about half an hours drive, this got increasingly worse until I took it to a local garage who after draining the water said the water was not getting into the engine. I had been monitoring the various fluid levels of the car and they all looked ok and werent leaking, the car was just then boiling the coolant in the expansion tank.
After I got it back it was great and I assumed it was just air in the top hoses, since then I have done roughly 500 trouble free miles. It was only this evening after roughly an hours drive and then me checking where a rattle was coming from in the exhaust that the same issue occurred.
I.e. the expansion tank boiling, I have a feeling it is internal but wanted to ask PH for any ideas/ tests to look at.
Thanks!
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