Coolant Leak Under the Intake Manifold

[samer0214]

Originally Posted by AV8R4AA

Since you have coolant on top, I can't perceive how it would get there
UNLESS the Y pipe was compromised.

What is your repair plan?

Originally Posted by BCREDLINER

Could be valley pan gasket but coolant pipe leaks that are not unusual are far more likely and coolant does collect on top of the valley pan.

Popular wisdom and common sense dictate that since I'm already in there, is to replace the valley pan cover, coolant pipe & even the water pump.

Two things working against me right now: time and money. This is my wife's daily driver and it's been out of commission almost going on 2 weeks now, so it's time to button it up. Add to that 2 Land Rovers at home that also need some attention, so the decision is to just replace the broken hose assembly at this point in time. I will have to tear through the engine soon enough, since the valve guides need replacing, at which point I will replace the valley pan cover and W/P.

I have earlier today bought the new hose assembly, intake manifold gaskets, throttle body gasket and 2 VANOS O rings (original BMW parts all), and will put it back together and back on the road.

Anything else I should do/replace while I'm there before putting it back together?