Hey e90, just wanted to share my experience hunting for a replacement long block.
Just as i thought. trying to find an engine replacement has been a total nightmare.
My local junyards take carry n52 bmw engines are 2 hours from me.
I've checked facebook marketplace as engines advertise as low mileage well maintained turns out to be complete piles of junk. one of them had a broken exhaust camshaft.
This one junkyard in tampa i visted advertised 3 n52 in stock. 30 day warranty. got there 2 of them seemed to have been left out in the rain or underwater pulled from a flood vehicle.
The other one was a n51 with the spark plugs pulled out. Not buying an engine if the orginal spark plugs are not in it.
It was missing the intake manifold. The "inventory specialist" told me its the same as the n52. i told him no the n51 has a lower compression ratio they added the 3stage to make up the power difference. begins to argue with me that he been doing this for years.
The last draw came i made the 2 hr trip again to tampa to check this engine:
https://www.ebay.com/itm/29584215779...Bk9SR9KXsrHGYg
got there and they were nice they let me check the motor with my camera, found that it has the same issue as my engine but dialed down.
Otheres wanted to have me leave a deposit on an engine that was still in the car but didnt run cause they sold the CAS.
Told them they have to remove the motor.
They said yes after a deposit.
This is bullshit. But anyways here is a shot in the dark. anybody in central florida area know of a good n52 that i can check out?
Quote:
Originally Posted by crashoverride
Valve stem seal failure is such a rarity on this engine. Not that anything and everything can break but this isn't a common failure for this engine.
Obviously a repair this big the expense is more than the car is valued... and for many of us here it's worth the expense. But it's not worth fixing such a rarity should it not solve the problem.
It would be well worth the diagnosis cost to take it to your dealership and have them professionally explore the many different causes and properly diagnose.
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Take my car to the dealership? This is a technical forum so we can avoid going to the dealership lol
Quote:
Originally Posted by fastboatster
Yeah, at his mileage (200+) the actual “repair” is to get a lower mile e90, and just send this car to a salvage yard
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I might have to count my losses and consider this option. I just spent $800 refreshed the suspension too
Quote:
Originally Posted by ptpending
valve seals are not failing, they are made from thermoresin, and due high temperature became like plastic, and lose their capability to absorb oil and return it to oil circuits. due that reason healthy engine begin to "eat" up to 1 liter oil per 1000 kms of the distance. and valve steam seal replacement fix that issue
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say what now