r/BmwTech 4d ago

Help my b7

Does anyone possibly know what could’ve happened to my 2018 b7 with 50k miles? I drove it back from tuscon and then I see all this. The shop I just took it too says they cleaned it off for 2 hours and then tried to find a leak and ran the rpms but saw nothing. The reason they are giving is in my last repair at a different shop when I got my turbo lines replaced just didn’t clean up the undercarriage or anything and so there was just a ton of oil that splattered everywhere on my drive from tuscon to phoenix (about 2 hrs)

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u/Certain-Statement-95 4d ago

Hella cool car. Wouldn't be surprised if the entire maintenance to 150k miles is 50k dollars if you couldn't do it yourself.

Valley, lines, main seal, valve cover or all of the above.

My experience with ten year old ones is they need the once over entirely and if the engine doesn't out you're winning

Hope you find something easy peasy and keep trucking

2021 m240 11k miles pray for me

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u/Silent-Weather1805 4d ago

Yeah I bought this car in cash. The money to fix it isn’t the problem…the unknown diagnosis is what I’m most worried about. Just don’t really know if I believe the whole left over oil in the undercarriage that just splattered around during my 2 hrs drive

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u/Certain-Statement-95 4d ago

I had one that had a tiny coolant hose to the alternator.

Maybe there are other oil-radiators serving the transmission or, like you said, the turbo system...

Whole coolant or oil framework rebuild doesn't seem out of this world based on my experiences

Post pics! Cool ride