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I need to have a valve cover gasket and Oil filter housing gasket replaced in my car..

I have a used car so i don't want to spend too much but again i want to make sure it lasts a while without major issues. So is there any difference between using an original part and not using an original part. if so what is it,, can it be a major factor why i should go with original part, especially with these gaskets?

Some of the bmw private service shops don't necessarily use originals so i want to see what the others have to say.

My car dealer looked at my car and said i need to replace oil filter housing gasket besides the valve cover. But when i called one of the local private shops the guy based on his experience suggested that i should replace the whole oil filter housing component without evening looking at the car. didn't make sense to me. is this a common thing service folks would suggest.

Thanks in advance

2000 BMW 323I, 124K
 

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For Oil Filter Housing Gasket, I'd recommend purchasing from a stealer or online stealership, but do not stray for that. I have seen differences in the quality and I know that the original OFHG's that came with cars are not made out of the good Viton rubber but the Buna-N crap (same quality as those VANOS seals that fail). BMW decided to use the good Viton rubber on the O-rings that go around the VANOS exhaust and intake solenoids (those O-rings are $10/each). I would not know why they went cheap with the VANOS O-rings though.

As far as Valve Cover Gasket, just go with what is labeled as OEM and you should be fine. Goetez/Gloecker (OEM) or Victor Reinz should be fine.

AutohausAZ.com, PelicanParts.com, or BimmerSpecialist.com should have the VCGs for a good price and other OEM parts. I personally would not buy the oil filter housing gasket from those places unless you want to do it over again in the near future. As mentioned earlier, I did purchase that from one of those and noticed a difference.

What that private shop said, I would just replace the OFH gasket and maybe if you want some extra security, then use some RTV. Torque the bolts to spec. It shouldn't leak afterwards. If it does then either something is in a bind or you really do need a new OFH, but not worth the price of getting a new one. OFHG going bad and leaking is a commonly known problem to E46s, and again it was because of the material BMW choose to go with initially. The new ones should last longer, but again with all things rubber, it will eventually go bad overtime. Nothing lasts for ever.

Both of these items you need to address are an easy DIY. There are plenty of them online, especially for these two jobs if you are mechanically inclined.

When you do replace the VCG, it usually comes as a set for the main gasket and also the gaskets around the spark plugs, but you should also replace the rubber grommets that go around all the bolts for holding down the VCG itself.

Good luck
 

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Genuity, is it for sure that new OFHGs from bmw are now made from Viton? I just bought a Victor Reinz one as a part of my order from AutohausAZ and you made me doubt. Since it's so cheap I might just buy another one from a stealer...
 
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