[E93long]

Hi,



Hope you're all well. Was changing my oil filter housing gaskets and the bolt under the intake manifold was being tortuous. Ended up being rounded and had to be broken off post hammering. While hammering, where the bolt goes into, the OFH broke. I have a N53 engine, E93. 09 plate in europe.

Do I now need to buy a OFH? A used one is roughly 30-50£, which I don't mind, but ideally want to fit the part on ASAP as I need the car for work.
I've been told as long as I put a slightly larger washer than the bolt (bolt is 8mm), then this will be enough pressure such that there is no leak.

I've attached a photo to show the damage.

Also what the hell is the part number for the OFH? OEMBMW says it's 11428683206 but I can't find this number on the part anywhere. Checking eBay, everybody has it listed as 7516383 - but there are multiple other part numbers on there too. Which one is the correct one?

Kind regards and thank you for your help

[e91Owner]

The part you listed from real OEM is correct. Do you need one? Maybe not, but there's no way to tell what all the damage is from that photo. If the hole is not flush it will leak. Other cracks, it will leak.


And if it leaks catastrophically, you'll kill your coolant system, potentially throw a belt and ingest portions in the engine.

[mapleleaf1773]

I'd replace it for the reasons e91owner suggests. Its not worth the risk. Question - do you have the correct tools/sockets? If not, this will help in your future car maintenance efforts.

For that bolt they make a specific socket to get to it. Its for a 1/4 drive. Check it out here - https://www.fcpeuro.com/products/e10...ocket-cta-2476. Sorry its a little late for that advice though but this socket would have saved you.

[E93long]

Hi thank you all for your help. The part that sits on the engine is still fully intact and unaffected by the crack. The top half where the top of the bolt sits is what's broken.

In terms of the part number from real OEM- all I can find for that part number is new stuff - . Nothing used on ebay. I can't find that part number on the OFHG at all. The only numbers on the OFHG is 751638315 and the numbers that's on the image. What do I do?

Further checking ebay, stuff removed from 09 plate, 330is N53 engine - are all called 7516383

Is 7516383 also the part number?

I've attached the images of all the numbers I can see

[E93long]

Originally Posted by mapleleaf1773

I'd replace it for the reasons e91owner suggests. Its not worth the risk. Question - do you have the correct tools/sockets? If not, this will help in your future car maintenance efforts.

For that bolt they make a specific socket to get to it. Its for a 1/4 drive. Check it out here - https://www.fcpeuro.com/products/e10...ocket-cta-2476. Sorry its a little late for that advice though but this socket would have saved you.

This was the initial issue. I had a E10 however was 3/8 socket. When trying to remove bolt, it rounded as I couldn't get it to sit flush on it. Then by the time the 1/4 socket E10 came (bolt was too rounded to move. Plus I had to move the intake a little (which I didn't want to do the day before / know how to do). Hence how we got here. But I'm really shit at these kind of things, just trying to do my best and learn as I go along. Lesson definitely learnt. .

[e91Owner]

You'll often find that people selling used parts on eBay etc, often put the number that's on the part vs the actual part number. In your case, the part number is 11427516383 for what is currently on your car. It was superseded by 11428637812.

Note, neither of these parts are listed for N53 in realoem. What you see on the neck of the hosing near the cap is that the housing has several part numbers, but all are identical. If you go with any of them, you will be getting the same part.

You can also get several other versions which are all the same thing. The only difference is the oil cooler, which you are not replacing. In short if you get the oil filter housing for an N5x that has an oil cooler (US e90 N52s do not), it will work.

[E93long]

Originally Posted by e91Owner

You'll often find that people selling used parts on eBay etc, often put the number that's on the part vs the actual part number. In your case, the part number is 11427516383 for what is currently on your car. It was superseded by 11428637812.

Note, neither of these parts are listed for N53 in realoem. What you see on the neck of the hosing near the cap is that the housing has several part numbers, but all are identical. If you go with any of them, you will be getting the same part.

You can also get several other versions which are all the same thing. The only difference is the oil cooler, which you are not replacing. In short if you get the oil filter housing for an N5x that has an oil cooler (US e90 N52s do not), it will work.

Thank you so much! You've been so helpful. I'll go pick up a used one today from a breaker or something. Thank you

[mainbearing]

The belt tensioner bolt should also be replaced each time it is removed.

Your may be different from the oe E51/E52 uses. Part number: 11287530315. Therefore check that the correct number is used for your engine.

https://www.rmeuropean.com/Products/...G203-V271.aspx

[e91Owner]

Originally Posted by mainbearing

The belt tensioner bolt should also be replaced each time it is removed.

Your may be different from the oe E51/E52 uses. Part number: 11287530315. Therefore check that the correct number is used for your engine.

https://www.rmeuropean.com/Products/...G203-V271.aspx

Just curious…. Why would you replace the belt tensioner bolt when removing the oil filter housing?

[alpinec1984]

Because you should change your serpentine belt and tensioner(s) as they are no doubt oil-fouled by the leak. The casting underneath the OF housing funnels the leaked oil right to the front of the engine, where it gets flung all over the belt.

[e91Owner]

Originally Posted by alpinec1984

Because you should change your serpentine belt and tensioner(s) as they are no doubt oil-fouled by the leak. The casting underneath the OF housing funnels the leaked oil right to the front of the engine, where it gets flung all over the belt.

I see. Never had them fail in that manner, just leaking under the manifold. Certainly in those cases, it would be overkill.

[mapleleaf1773]

Originally Posted by e91Owner

I see. Never had them fail in that manner, just leaking under the manifold. Certainly in those cases, it would be overkill.

Well if your belt slips off because it's soaked in oil it has no where to go except through the crankcase seal. Then it gets sucked into your engine and goodbye engine. So its probably "the best" preventative maintenance item you could do.

[e91Owner]

Originally Posted by mapleleaf1773

Well if your belt slips off because it's soaked in oil it has no where to go except through the crankcase seal. Then it gets sucked into your engine and goodbye engine. So its probably "the best" preventative maintenance item you could do.

Yes, I understand. Just seemed like a weird comment for the post. Why not remind him about doing anything else he hasn't asked about, lol.

BTW, you should really change your mechatronics sleeve.

[edycol]

Originally Posted by e91Owner

Yes, I understand. Just seemed like a weird comment for the post. Why not remind him about doing anything else he hasn't asked about, lol.

BTW, you should really change your mechatronics sleeve.

Bcs. if there was leak from OFHG to belt it is done! These engines are known to grenade bcs. serpentine belt fails as consequence of OFHG leak.

They get sucked through front crank seal. I actually have steel plate there in case it fails.

[e91Owner]

Originally Posted by edycol

Bcs. if there was leak from OFHG to belt it is done! These engines are known to grenade bcs. serpentine belt fails as consequence of OFHG leak.

They get sucked through front crank seal. I actually have steel plate there in case it fails.

Yep. Read the post I'm talking about. It was out of the blue and not related to the question. Same guy said I should fess up to a subsequent owner about not preemptively replacing some fluid (can't remember) to solve a problem that I don't have. It's a general problem I see here from experienced DIYers telling others to replace parts that work fine for problems they don't have, wasting money on old cars in the process.

[edycol]

Originally Posted by e91Owner

Yep. Read the post I'm talking about. It was out of the blue and not related to the question. Same guy said I should fess up to a subsequent owner about not preemptively replacing some fluid (can't remember) to solve a problem that I don't have. It's a general problem I see here from experienced DIYers telling others to replace parts that work fine for problems they don't have, wasting money on old cars in the process.

I seriously don't fallow your thought. My point is simple: any oil in serpentine belt area, change belt. It is a problem!

[e91Owner]

Originally Posted by edycol

I seriously don't fallow your thought. My point is simple: any oil in serpentine belt area, change belt. It is a problem!

You're right. We don't think the same. Nor did the OP say that oil had leaked on his belt, but my post was in response to another saying to replace a bolt. Maybe read the thread.