[barf]

Rocker cover gaskets do tend to go bad and could cause some oil to seep into the intake , maybe it was installed incorrectly if done recently? But I have not seen this cause any runaway conditions.
Probably more related to turbos if that's what happened.
In any case if you have metal shavings in the oil filter it is usually due to crank bearings in M57.
Did you get a lot of white smoke from the tail pipe when it happened?

Transmission failure most probably would have triggered gearbox fault messages when it went into limp mode. Also it would have disengaged TQ clutch when you were off the pedal and TQ clutch would have probably slipped anyway at that speed.
Did the RPM stay high after you took cruise control off and layed off the pedal?

The turbos might themselves be OEM but the internals might not be, they reutilize the same outside and just put a new CHRA cartridge inside but this could come from germany, could come from poland, could come from china...

[lemansbluen54]

Originally Posted by barf

Rocker cover gaskets do tend to go bad and could cause some oil to seep into the intake , maybe it was installed incorrectly if done recently? But I have not seen this cause any runaway conditions.
Probably more related to turbos if that's what happened.
In any case if you have metal shavings in the oil filter it is usually due to crank bearings in M57.
Did you get a lot of white smoke from the tail pipe when it happened?

Transmission failure most probably would have triggered gearbox fault messages when it went into limp mode. Also it would have disengaged TQ clutch when you were off the pedal and TQ clutch would have probably slipped anyway at that speed.
Did the RPM stay high after you took cruise control off and layed off the pedal?

Didn’t have cruise control on, it felt more like a downshift into a super low gear, the car didn’t accelerate and more so felt like engine braking. Threw a trans code when it happened but it threw a lot of other codes as well.

[maryjane]

Do you hava xhp or anything to check trans adaptations? This sounds like an eclutch failure, then overrev and spun a bearing. You're in for some fun, sounds like a rebuild of both engine and trans is in your immediate future.

[Tambohamilton]

I was wondering what would have caused it, but I don't know the first thing about auto trans... Your suggestion makes perfect sense

[lemansbluen54]

Originally Posted by maryjane

Do you hava xhp or anything to check trans adaptations? This sounds like an eclutch failure, then overrev and spun a bearing. You're in for some fun, sounds like a rebuild of both engine and trans is in your immediate future.

Yeah I can check tonight. Anything specific to look for?

[maryjane]

I imagine you'll see a 700+ value for clutch E.......anything over about 350 is bad. What you reading codes with?

[lemansbluen54]

Originally Posted by maryjane

I imagine you'll see a 700+ value for clutch E.......anything over about 350 is bad. What you reading codes with?

I have Protool and Bimmerlink

i looked through some old screenshots from when it happened, and it threw code 4f85

So a trans failure leading to a spun rod bearing is looking likely. I just hope the motor itself isn't too far gone

[lnxguy]

Your e clutch failing isn't going to lead to a spun bearing in the motor...

[lemansbluen54]

New update:

Did a compression test, numbers were as follows:

1) 350
2) 330
3) 0
4) 0
5) 340
6) 330

Those zeros are very confusing as the codes were in cylinders 2&4…

Any idea of where I should start?