Complete list of all o-rings (by size & by part number) to buy when ordering parts
I was ordering oil filters today when I realized I should have a ready-made list of o-rings by part number to get while I'm already ordering other stuff (not just for oil changes but for all maintenance jobs).
Mann HU925/4x, Mahle OX/154/1D, Hengst E106H D34, oil filter (or BMW P/N 11427512300)
It was untimely, while on the phone, coming up with the part numbers on the fly for optonal o-rings, so, I belatedly realized that it would have been useful to have a ready-made list all the o-rings we might wish to keep in mind to get the 'next' time we're already buying parts.
Here's my starter list below - but the point of this thread is for others to ADD other necessary maintenance o-rings (& rubber o-ring-like gaskets) for adding to existing orders and to keep in stock in the garage.
NOTE: Please make sure the part number and the size & quantity needed is listed!
Two small o-rings on the bottom of the oil filter stem
EDIT: I just realized that all the confusion may be due to the fact that one of these "CPS" above may actually be a CKP (crankshaft) while the other two are CPS (camshaft)!
If anybody can tell me how to get the PS reservoir O-ring installed, that would be great. I cannot get it to stretch enough to sit, and stay, in the recess. And yes, the old O-ring has been removed.
This isn't really the thread for that; the right thread for that would be found by typing /power steering F3 in the bestlinks, which comes up with this:
- How to remove and replace the power steering cap o-ring (1) (2)
Interesting thread. :thumbup: I have ignored (or more to the point, been ignorant of) these o-rings completely. Are there any recommended change intervals for these o-rings from any reputable source? I don't remember seeing any guidance in Bentley's. And I hate looking through the TIS. Mine are all probably original. Another thing(s) to replace...
Interesting thread. :thumbup: I have ignored (or more to the point, been ignorant of) these o-rings completely. Are there any recommended change intervals for these o-rings from any reputable source? I don't remember seeing any guidance in Bentley's. And I hate looking through the TIS. Mine are all probably original. Another thing(s) to replace...
I know last summer when I changed the O-rings on the distribution piece, they were hard as rock. Literally. The new ones are a tad softer - they are hard to replace.
They do deteriorate in time, sometimes it's a leak (like the oil leak by the CPS). Sometimes it's vacuum leak (DISA). BTW, Gary's O-rings work well, BUT: make sure you lube them lightly, then when you re-install the DISA, be VERY GENTLE in pressing it in. You have to actually rotate it back and forth and press it very gingerly in. Otherwise, the new O-ring will shear. Ask me how i know.
The PS O-ring, once you start seeing ATF on the canister - it's a dead givaway. I always thought it's soiled because of the vent hole. I was wrong. Since I change that sucker, I never had a drop of the red stuff staining the canister.
I searched realoem for O-ring. The search returned a list parts with the term "ring" in the description. I edited the list to include only the descriptions with the term "O-ring". Hope this helps.
Here's the list:
Part 12141748398 (O-ring) found in: Engine Block Mounting Parts
Part 11361703713 (O-ring) found in: Cylinder Head Vanos
Part 12141748398 (O-ring) found in: Cylinder Head Vanos
Part 11511711484 (O-ring) found in: Waterpump - Thermostat
Part 11431717666 (O-ring) found in: OIL PAN/OIL LEVEL INDICATOR
Part 11431740045 (O-ring) found in: OIL PAN/OIL LEVEL INDICATOR
Part 11421741000 (O-ring) found in: Lubrication system-Oil filter
Part 11421744001 (O-ring) found in: Lubrication system-Oil filter
Part 11427549573 (O-ring) found in: Lubrication system-Oil filter
Part 11531435808 (O-ring) found in: Cooling System Water Hoses
Part 11417507429 (O-ring) found in: Lubrication system/Oil pump with drive
Part 11411722837 (O-ring) found in: Lubrication system/Oil pump with drive
Part 13621743299 (O-ring) found in: Intake manifold system
Part 11617502761 (O-ring) found in: Intake manifold system
Part 12141748398 (O-ring) found in: Sensors
Part 12141748398 (O-ring) found in: Sensors
Part 13711720540 (O-ring) found in: Intake muffler
Part 13641437487 (O-ring) found in: VALVES/PIPES OF FUEL INJECTION SYSTEM
Part 13641437486 (O-ring) found in: VALVES/PIPES OF FUEL INJECTION SYSTEM
Part 13531720251 (O-ring) found in: Fuel filter, pressure regulator
Part 13531720252 (O-ring) found in: Fuel filter, pressure regulator
Part 17211742636 (O-ring) found in: TRANSMISSION OIL COOLING
Part 24201423387 (O-ring) found in: A5S325Z lubrication system
Part 24311422806 (O-ring) found in: A5S325Z lubrication system
Part 24201217321 (O-ring) found in: A5S325Z Output
Part 24341421736 (O-ring) found in: A5S325Z wiring/oil filt./pulse generator
Part 24101423176 (O-ring set) found in: A5S360R/390R ctrl unit with mount.parts
Part 32321094182 (O-ring) found in: STEERING LOCK/IGNITION SWITCH
Part 17211742636 (O-ring) found in: HYDRO STEERING-OIL PIPES
Part 33117525064 (Screw plug with O-ring) found in: Final drive, gasket set
Part 34311165092 (BRAKE MASTER CYLINDER O-RING) found in: BRAKE MASTER CYLINDER/EXPANSION TANK
Part 34311165092 (BRAKE MASTER CYLINDER O-RING) found in: Power brake unit depression
Part 64118385686 (O-ring set) found in: HEATER RADIATOR AIR CONDITIONING
It would be nice if a supplier puts together a kit for our E39s.
I can see them making a profit because, in bulk, the o-rings are pennies, whereas they can charge us a buck or so, and the kits won't take a lot of room on the shelf, and can be easily adapted for other vehicles.
By way of update, my rubber "kit" arrived today, complete with a few extra sets of the hard-to-find 441 (61610154441) wiper blade inserts and a spare oil bolt & crush washer, in addition to the list of o-rings earlier discussed in this thread, each in their own labeled baggy.
I've attached the list I posted above, supplemented with parts listed as gasket seals and sorted by application. It's a PDF file. If anyone needs the spreadsheet, PM me.
Wow. Very nice. This is a complete 'kit' for a supplier to create for us, since most of our o-rings are a decade old by now. We could then put the kit on our garage shelf, and, whenever we're taking apart something nearby, we'd have the handy o-ring to replace.
For example, when doing the CCV, we could do the CKP and CPS o-rings, in addition to the lower dipstick tube o-ring.
You're observant! I sat down to open the box that came in the mail, and as I laid everything out to compare to the invoice, I snapped the photo, so I hadn't thought of mentioning the bulb.
I bought the bulb because my low beam indicated it was out. Funny thing - the moment I pulled the old bulb out, it lit right up in my hands.
So now I have an extra H7 bulb, just in case, to stock along with my o-rings.
Oh well, it will eventually get used (as long as I don't lose it, which I am wont to do).
Hmmmm...
Maybe we can open a separate thread, that references this thread for o-rings, that lists all the "stuff" that we can stock to put on the shelf - that our ten year old bimmers are gonna eventually need.
Great thread here.! I was hoping if anyone knew the correct oring size for the quick connect coupling seen on the ends powersteering and transmission cooler hoses?
There are a couple of o-rings that sit inside the fitting. My transmission cooler hose is weeping and I was hoping just to change the o-ring and not the entire hose.
There was a post regarding a better o-ring for the power steering cap and although it was a few years ago, I was wondering if anyone had a spare ring for sale.
I can't justify going to Baron BMW here in KC and I have checked many stores to find the specific size (M2.5x42 75A Shore) outlined in those posts and had no luck. I could only find M3x42 50A and I know it will not stand up to the rigors of the engine compartment heat nor the fluid eating it.
If someone has one to part with, please let me know and we can work out paypal options for payment
Interesting thread. In all my years of wrenching on cars I have NEVER ordered parts by part number. Every time I just give the parts guy make, model, year and engine size and he does the rest. If there is any question, the VIN number resolves it. In the case of a standard washer, o ring, nut or bolt you can eaither measure the required size yourself or take it in and the parts guy matches it. Never had an issue with on line orders eaither. That's what part stores are for.
O-rings are a bit different, because I can't imagine calling up a BMW parts guy, and then having *him* source them for you, one by one over the phone. They'd kill you if you asked for the fifty cent o-ring here, and the twenty-cent o-ring there and the ten cent o-ring there, etc. After an hour on the phone, he'd have an order totaling about ten bucks!
Plus, we all know the propensity of BMW to use the wrong material for the o-rings.
So, it makes sense to know the SIZE of the o-ring, and then order from an o-ring supplier, the best materials, at the list of sizes here.
It just takes collecting the sizes together into a single list, which, if we work together, we can do.
Someone might even make money collecting a set of the o-rings needed, and selling them as a set.
I've even thought of that myself, but I don't know if it would be worth the effort.
There is a good discussion of whether it's the o-ring or the q-tip which stops the misting (personally, I find it to be the o-ring) and how long that o-ring lasts, over here, today:
> E39 (1997 - 2003) > Power steering reservoir
Hi, I have a 2003 BMW 525i, and I notice that there is a small leak of power steering fluid. It seems to come from the ventilation hole on the cap of the reservoir. I wonder if I need a new reservoir.
For those who want to remove the waterpump, for whatever reason, and put it back, this thread shows that we need to figure out the gasket size:
> E39 (1997 - 2003) > Water pump gasket?
Does anyone know if they make a rubber water pump gasket for our 540i's? This is the second time I have installed the new water pump and it still leaks. I used the paper gasket that came with it and a light bead of the orange hi temp RTV on both sides, let it sit for like 15 minutes and then installed the pump, tightened up the bolts , waited again a few minutes and then torqued them. Why the hell does this thing leak?? Is there a good factory gasket out there that requires no RTV?
This thread shows another o-ring we might have missed measuring, to date:
> E39 (1997 - 2003) > Topping off coolant...
(although most of us would replace the entire radiator nipple, which comes with the o-ring).
More information about second sourcing o-rings is here today, showing that it's better to plan ahead, than to replace fuel injectors and CCVs and dipstick guide tubes without replacing the o-ring the first time because you don't have it:
> E39 (1997 - 2003) > Where is the Fuel Pressure regulator?
O-rings from dealer are $5 each, with 12 needed to fit an i6. I'll go generic from the hardware store for a total cost under $6 rather than dealer cost of $60.
So, after fitting new O rings to the two bottom tank connections, it's all been installed. Lubricating the various O ring connections on previous changes has made getting the tank separated and replaced a more reliable smooth process.
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