Why An Oil Filter Housing Leak On A Bmw N51 N52 N54 Or 59 Off I've already outlined why it's critical to repair an oil filter housing leak on any bmw n5x engine (n51, n52, n52n, n54, or n55). i've even highlighted how to fix the issue yourself in a diy article. now, i have the photos to back up how bad this can be. and i should should warn you — it's not pretty. It’s due to the design of the harmonic balancer crank pulley assembly on these engines and the position of the serpentine belt relative to the engine block. the oil filter housing leak, when severe enough, can create a trail of oil all the way down the front of the timing cover, eventually coating the serpentine belt and crankshaft pulley.
Why An Oil Filter Housing Leak On A Bmw N51 N52 N54 Or 59 Off These engines leak oil predominantly from three locations: 1. oil filter housing gasket. you have this leak it's visible in the first picture. it looks like the o ring on top of the filter might not be fully sealing either, but you should address both asap. this oil will leak onto the serpentine belt, which will start to degrade. I check daily, taking a paper towel under the oil filter housing, and visually checking under the valvetronic motor, the external head bolt, and the valve cover gasket. i try to check at the head gasket level where i know there are two broken internal head bolts for the timing chain housing, but access is very difficult. I could see it has deteriorated into the port and a lot of caked on gasket and oil particles where inside the housing. it seems like it had just smooshed in so much the gasket actually got squished into the port. A super common engine oil leak on pretty much most bmw 4 and 6 cylinder engines. the notorious oil filter housing gasket, and sometimes also known as an oil filter stand gasket. m43, m44, m54, n51, n52, n54, n55, n20, b46, b48 and b58. most will have this leak at some point in their life. but, what is it? and should you worry about it?.
Why An Oil Filter Housing Leak On A Bmw N51 N52 N54 Or 59 Off I could see it has deteriorated into the port and a lot of caked on gasket and oil particles where inside the housing. it seems like it had just smooshed in so much the gasket actually got squished into the port. A super common engine oil leak on pretty much most bmw 4 and 6 cylinder engines. the notorious oil filter housing gasket, and sometimes also known as an oil filter stand gasket. m43, m44, m54, n51, n52, n54, n55, n20, b46, b48 and b58. most will have this leak at some point in their life. but, what is it? and should you worry about it?. 6. bmw n52 oil filter housing leak. similar to the valve cover gasket deteriorating over time, this also frequently happens on the oil filter housing gasket. the gasket seals the oil filter housing to the engine block cylinder head, and is the most common oil leak found in n52 and all n5x engines, along with the one listed above. Typically oil filter housing gaskets leak from below, not the cap. what you see is residue if it starts to leak again, get a cap oring from bmw new oil filter. never go aftermarket with the filters for multiple reasons nuff said. It’s possible for the filter cap to leak if the o ring has hardened or is of low quality and this produces a pretty substantial leak. the filter housing gasket is also a common leak, between the housing and head and it’s pretty straight forward to clean and replace.
Bmw N52 Oil Filter Housing Gasket Repair 60 Off 6. bmw n52 oil filter housing leak. similar to the valve cover gasket deteriorating over time, this also frequently happens on the oil filter housing gasket. the gasket seals the oil filter housing to the engine block cylinder head, and is the most common oil leak found in n52 and all n5x engines, along with the one listed above. Typically oil filter housing gaskets leak from below, not the cap. what you see is residue if it starts to leak again, get a cap oring from bmw new oil filter. never go aftermarket with the filters for multiple reasons nuff said. It’s possible for the filter cap to leak if the o ring has hardened or is of low quality and this produces a pretty substantial leak. the filter housing gasket is also a common leak, between the housing and head and it’s pretty straight forward to clean and replace.
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