Hello everyone, Mark from Rome.
From today I am a member. I bought a BMW 318 coupe '((E46) and I am struggling with an oil leak that smears the engine under the intake manifold and goes on to the service belt. All this not from engine cold, but after 10 miles resulting in the smell of oil burned I thought it was the oil filter seals (I have changed the seals) but the loss continues, then I thought it was the crankshaft seal, (I will replace tomorrow) just to travel to the exclusion of problems. Otherwise, the problem could be the oil catch can unit...
any idea?
Many thanks for your help
Welcome to the Forum!
There are two different motors that the 318CI came with: N46 and the N42. Please post up the year of the car so we can know which one.
Well the first step is to clean the motor. You cannot find a leak when there is oil all over the motor. It will help to remove the lower engine cover, so you can see where it is dripping too, just make sure to put some cardboard down to catch the oil.
Darin
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05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
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Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
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91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
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M-Flight Member
Please do kit replace the front crank seal. It’s likely not the cause. Follow Darin’s advice. Throwing parts at the problem wastes money, doesn’t fix the problem and it angers the BMW goddesses.
Hello everyone and many thanks for reply
The engine type is N42. I have cleaning the engine from oil leak, but back in my garage, already oil leak under intake manifold and belt pulleys. I think, a tube of the oil separator system, could be broken. The oil is lost when hot engine
Thank You.
Mark
Last edited by Jacspeed; 01-22-2018 at 09:40 AM.
Probably the oil filter housing gasket between the block and filter housing. Maybe if you are lucky it's just the o ring on the filter cap.
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Hello, thanks
N42 engine type.
I would like to disassemble intake manifold, to gain access to the oil catch can system, but unfortunately I don't have much time, then next week will go to BMW SERVICE Garage.
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