Is this a problem
- Thread starter Nick7602
- Start date
Oh Right, sorry guys 
there is a leak around the base of the oil filter housing and a small puddle of oil under the black screw on oil filter cap, which is in last pic above and shown below……..Robbie mentioned this is a common problem….is it just a case of renewing the oil seals to the cap and body of the oil filter housing…..will this cure the concern or is there anything else I should change at the same time?……Im thinking the drive belt to, as it appears to be directly below the oil filter?
Quite concerning is that without a dipstick I literally cant tell if the engine has been flooded with oil :x
there is a leak around the base of the oil filter housing and a small puddle of oil under the black screw on oil filter cap, which is in last pic above and shown below……..Robbie mentioned this is a common problem….is it just a case of renewing the oil seals to the cap and body of the oil filter housing…..will this cure the concern or is there anything else I should change at the same time?……Im thinking the drive belt to, as it appears to be directly below the oil filter?Quite concerning is that without a dipstick I literally cant tell if the engine has been flooded with oil :x
Morning Nick
The housing is ok, no worries. There are 2 gaskets in this housing, which harden out over time:
Drive belt change can be done depending of the amount of oil dripped on it as well as of the mileage.
Maybe the belt tensioner can be replaced as well.
The following parts link is for a N54 motor:
https://www.realoem.com/bmw/enUS/showparts?id=LM72-EUR-04-2010-E89-BMW-Z4_35i&diagId=11_3971
The housing is ok, no worries. There are 2 gaskets in this housing, which harden out over time:
Drive belt change can be done depending of the amount of oil dripped on it as well as of the mileage.
Maybe the belt tensioner can be replaced as well.
The following parts link is for a N54 motor:
https://www.realoem.com/bmw/enUS/showparts?id=LM72-EUR-04-2010-E89-BMW-Z4_35i&diagId=11_3971
Scottish Borders
RobbiZ4 said:
It’s an N52 not N54 engine but Robin’s comments still valid.
There are folks you do uprated versions of the seals…Turner Motorsport in the US do them.I’m sure others may do them too..
I suspect the belt and tensioner are different on the N52 from the N54
https://www.turnermotorsport.com/p-587190-high-performance-oil-filter-housing-gasket/
Whether it’s worth it not sure..I’m just swapping these seals out as part of oil/filter/thermostat changes on mine
My N54 link has been an example, as these gaskets are identical on a wide range of BMW motors.B21 said:
The cross ref list is very impressive:
https://www.realoem.com/bmw/enUS/part?id=LM72-EUR-04-2010-E89-BMW-Z4_35i&mg=11&sg=30&diagId=11_3971&q=11428637821
N20, N26, N50, N51, N52, N53, N54, N55, S55
As the replacement is rather simple and their lifetime is around 10 years, I'd not do the effort to look for alternatives.
Hi Guys
Being a lazy cus, I elected to have a local BMW specialist fit new gaskets supplied by me from BMW, I have noticed a small seepage of grey sealant?around the surface edges where both gaskets mate.
Is this right, can sealant be used as well as the gaskets as a sort of belt and bracer approach to preventing further oil leaks?…..my concern is could sealant find its way into the oil?
Is this a known approach to fixing the oil leak?
Thanks for reading my concern
Nick
Being a lazy cus, I elected to have a local BMW specialist fit new gaskets supplied by me from BMW, I have noticed a small seepage of grey sealant?around the surface edges where both gaskets mate.
Is this right, can sealant be used as well as the gaskets as a sort of belt and bracer approach to preventing further oil leaks?…..my concern is could sealant find its way into the oil?
Is this a known approach to fixing the oil leak?
Thanks for reading my concern
Nick