Spark Plug Tubes o-ring replacments availabe?
 

Since I have the valve covers removed I figured I try to change out as much as gaskets, O-rings, seals, etc as I can. My tubes appear to be fine and would like to replace the O-rings on them but I don't see BMW having this option available. Does anyone know the sizes or have changed the rings or do they just purchase replacement tubes? I don't have any oil in the spark plug holes so Im sure I can just throw these back on but as stated since Im at it I'd rather replacement if possible. Whats the time frame these should be replaced if any?

Any feedback on this would be great.
Thanks in advance.

the spark plug tube seals come with the Valve Cover Gasket kit.

Are you sure? I have the kit at home and didn't notice any spark plug tube o-rings in the kit??? I'll double check tonight

Show me a diagram I think we are talking about 2 different things here.

It would help if you listed your engine type in the thread. On 3.0 engine the seal between the spark plugs tube and the valve cover normally come with the valve cover gasket set, not unless you brought a cheap set from eBay or Amazon.

Sorry I posted this last night and wasn't thinking straight. I have a 04 4.4i.

Zündkerzenrohr 5er 6er 7er X5 (11127570219) - leebmann24.de

#12 in picture.
Hope this clarifies things up. Sorry once again for not posting vehicle specs.

Oh, well then I'm of no help, I have a 3.0, lol

Its all good! I think the 3.0 do come with all seals for those but the V8 N62 have its own tubes with O-rings. Not sure if the older V8's have them or not. But looking around it seems that you have to replace the entire tube. I may double check my tubes for cracks, etc and if they are still good may just head over to a shop and find O-rings that match up and replace them. Was going to buy new tubes but Im pretty sure my tubes are fine.

Anyways thanks for the response though! :thumbup:

seals only come with the tubes, I would replace them all

I did change all 8 of mine

You replaced the entire tubes or just the O-rings? If you replaced the O-rings do you remember the sizes you got?

On my vehicle the "O-rings" were molded on the tubes, and still in good shape (soft). I just re-used them.

How many miles are on the X Doru? Ill double check mine when I get home tonight but I think mine were fine too. I was just thinking preventive maintenance but if most are reusing than I should be fine too.

If the molded o-ring on the tube is like the molded o-ring on a Disa valve for a 3.0 after a while they loose their abilities to seal.

The cheap fix will be to scrape off the molded o-ring and replace with regular o-ring of the appropriate size.

I ordered 8 new tubes to do mine... sucks as they are kind of pricey when you multiply by 8. In to see if there actually is a set of seals for these available.

I believe the O-rings are removable and not molded onto the tubes. Ill verify tonight and will post. But if they are removable replacing them with ones similar Im sure wouldn't be an issue especially if the tubes are still in good condition!

Update it appears that the O-rings are molded into the tube as upallnight stated! Could be possible to replace them as he mentioned as well.

It's NOT the same rubber compound. These have higher heat tolerances than the DISA molded O-ring.

Probably why mine are still in good condition at its current miles. It could have also been replaced by the previous owner but uncertain.

The sparkplug tubes are good until they are cracked IMHO. For the tubes to crack, there should be either a higher than normal engine temp, or consistent accelerated temp differentials, I believe. Or wrong installation.