[#-JONAS-#]

Alright, so went to Bmw to get a service done, asked them to check everything on the car, change ALL filters because the car had been in a garage for about 1.5 years and check engine because there was an oil leakage. Just bought the car and it seemed SOOO SLOW because all filters were clogged but that's not important.
The day after Bmw called me and told me that the oil sump was cracked and they would have to change it because it was leaking a lot, and it was also leaking from the top of the engine from the cylinders (cylinder head?).
This oil sump is extremly expensive with working hours, but to the point, what may have caused this oil sump to crack and why would oil suddenly come out of the top of the engine?

[fenixxishot]

Common issue is the oil filter housing gasket begins to leak. Which is at the top of the engine. Not familiar with what an oil sump is.

[Joe-]

Originally Posted by fenixxishot

Common issue is the oil filter housing gasket begins to leak. Which is at the top of the engine. Not familiar with what an oil sump is.

Oil sump is where the oil pan is brings oil up into the engine as a pump. Generally you have to remove suspension to get at it, I think more than 1 exists in these cars.

[#-JONAS-#]

Originally Posted by fenixxishot

Common issue is the oil filter housing gasket begins to leak. Which is at the top of the engine. Not familiar with what an oil sump is.

Alright but they didn't just change a gasket, I'll post a picture later, they changed a whole section on the engine.

[#-JONAS-#]

Originally Posted by Joe-

Oil sump is where the oil pan is brings oil up into the engine as a pump. Generally you have to remove suspension to get at it, I think more than 1 exists in these cars.

There's more than one???
This must have been the main one then, but how is it even possible to crack it if the suspension is in the way?

[Joe-]

Originally Posted by #-JONAS-#

There's more than one???
This must have been the main one then, but how is it even possible to crack it if the suspension is in the way?

Could have been crap in the road etc ive heard of people hitting big rocks in the road and damaging it. The suspension isnt fully protecting it its generally in the way of removal.

Sounds like it was the lower one that was damaged.

[sammk]

Sounds phoney to me.. Unless they meant that the drain plug threads were stripped somehow.. Which is technically a sump damage. Other than that, the sump won't just crack by itself, there has to have been some impact like a big flying rock (which would have to have torn through your plastic underbody cover), or something along those lines.. The sump is a cast Aluminum part, about 3-4 mm thick.. It's not a chintzy stamped steel part exposed to the elements like in older/cheaper cars..

[#-JONAS-#]

Originally Posted by sammk

Sounds phoney to me.. Unless they meant that the drain plug threads were stripped somehow.. Which is technically a sump damage. Other than that, the sump won't just crack by itself, there has to have been some impact like a big flying rock (which would have to have torn through your plastic underbody cover), or something along those lines.. The sump is a cast Aluminum part, about 3-4 mm thick.. It's not a chintzy stamped steel part exposed to the elements like in older/cheaper cars..

I don't know what has happened to the car in the past so it's kinda hard for me to tell if it's been a rock, it was just to know is it was normal?
The car is lowered, has the M sports suspension, and is hard as hell to drive even on the freeway!