Prestone level always low

[jfboucher]

I have to refill my port engine prestone tank a few times per season while the other one is always fine. I have no overheating problems, not much difference in gph and see no leaks at all in the engine compartment. Any ideas ?

 

[go2pamlico]

My 1997 330da had a similar problem with its stbd engine. I found what appeared to beantifreeze in the exhaust. When I pulled the elbows I found that the outboard side manifold metal had deteriorated to the point that antifreeze was leaking past the gasket and was blowing out the exhaust. I then pulled the port elbows and found metal on one of the manifolds to have deteriorated; but, not the point that antifreeze was blowing past the gasket. I replaced all four manifolds and my antifreeze levels remained steady. Hope this helps.

 

[sdleo26]

Check your oil, make sure it's not milky or discolored. If it is, you have an internal leak perhaps from a head gasket.