2007 BMW 4.8is Runs great but has coolant leak….$1500 ?

[LennyBoy1]

So I saw this X5 advertised nearby on Facebook: 2007 BMW 4.8is Runs great but has a coolant leak $7500. I messaged owner & stopped by to look at it and I test drove it (very short trip). It had 180,000km (112,000 miles), the body and interior seemed to be in very good shape & it started and ran good. I ended up buying it for $1500. Ok so the coolant leak….

From my mechanical inspection & research on this forum and other sites, it probably has the coolant pipe and valley pan leak. There is not a lot of evidence of coolant leaking from the weep hole on water pump but there was a lot of coolant dripping off rear of engine and down bell housing. As well after I removed the intake there was lots of coolant collected around valley pan. I decided to replace the valley pan and the coolant pipe and the small Y pipe under the intake (about 3/8”) that connects the cylinder heads to the upper radiator hose.

I bought the URO Valley Pan for about $100, and the N62 Collapsible Coolant pipe kit with o-ring kit for about $100 from Amazon and a Febi Y pipe, as well as the heater pipe o-ring and BMW intake gaskets. I’ll try to add pictures…

First question: Should I have bought a better quality coolant pipe kit like AGA, URO, ECS, MTC or some other brand? I have not installed the pipe yet but I’m hoping to start this weekend. I have read some owners have used a lower cost pipe but also ordered the URO O-Ring kit.

Second question: Is there any advise you could provide on this coolant repair if you completed it ?

Third question: Is there any other common coolant leaks that I should also investigate and replace?

Thanks in advance for your input and help.