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Tired of Replacing BMW Oil Filter Housing Gaskets? New Viton Gasket Solves the Problem, OFHG

August 17, 2016

A common oil leak on late model BMW 6-cylinder engines is the small gasket between the oil filter housing and the engine block, known as the oil filter housing gasket (or, OFHG).  The oil filter housing is the large aluminum casting that houses the oil filter and also mounts the alternator and the power steering pump.  This issue apples to the M50, M52, M52TU, M54, M56, S50, S52 and S54 6-cylinder engines from the early ’90s through the late ’00s.  With this noted, the most common models for leakage are the M52TU and M54 versions.   On these engines, it’s not a question of IF the gasket will leak, but WHEN.  The cure is to remove the housing and replace the gasket.  And, once the work has been done to replace the gasket, it’s not uncommon for it to begin leaking again.  Of course, this can be rather frustrating.  While the gasket is only a few dollars, the labor to replace it is not inconsequential.

Knowing the problems with the standard replacement gaskets, BavAuto has worked with our suppliers to develop a new long-life oil filter housing gasket that is made from Dupont’s high-tech Viton material.  Viton is far more resistant to the heat and chemicals associated with the oil filter housing gasket.  Installing the BavAuto Viton gasket means this will be the LAST time you perform this task.

Click HERE for general Oil Filter Housing Gasket replacement DIY

Click HERE for Bentley Publishers Oil Filter Housing Gasket DIY on E46 3-series M54 engine

The applicable Bentley Publishers repair manual will detail the gasket replacement for specific BMW models.
Click the image below for Bentley repair manuals:

Click below for Viton Oil Filter Housing Gasket:

Bavarian Autosport

  1. Mark Robbins permalink

    Help Otto ! ……although based in UK I see your itrouble shooting nformation and parts available is hig here on UK forums.

    I have a 2004 BMW 316 Ti Sport Automatic with only 53,000 miles in my shop, I usually can solve 99.9% problems but this is tumping even me ! …..any ideas would be greatly appreciated.

    Kind Regards

    Bucks BMW Specialists

  2. Karl permalink

    Hi, recently I’ve noticed a red oily leak on the floor about the size of a single drop that can be easily wiped away by touching it since it’s really small. Sometimes it takes about a week with the car parked and not moving for the drop to develop which makes it difficult to determine where the leak is coming from. Recently the transmission and valve body were overhauled. New oil and filter were also installed. The car is an E36 325i with an automatic 5HP18 A5S310Z transmission. What could be the source of the problem and should I be able to drive in those conditions?

    Thanks in advance!

    • Karl – Red fluid will either be transmission fluid or power-steering fluid. You need to determine if the fluid is coming from a power steering hose connection (or the rack or pump) or from a transmission cooler hose or the transmission itself (pan, seals). The amount of leakage that you note does not seem to present an immediate problem, but I would suggest that you determine if it is the transmission fluid or Power steering. If transmission, you will want to take care of it before it causes the fluid to be low enough to cause damage.

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