BMW 1 series 120D 118D N47 Oil filter housing gasket change 

Wow! That's great 🙂

That's great, job well worth doing and great advice about the tools and the hose 👍

Thanks. You are right and I did replace the O rings. But for some reason my GoPro didn't record it. The rings come in the gasket kit.

Could be the start of the housing gasket going but to be honest, BMW's leak oil from various parts. The usual practice is to wash the whole of the engine then see where the leak comes from. Good luck

Did you take the whole filter housing off like I did? When I put mine back on with a new gasket I also used extra gasket sealer to make sure it didn't leak

Never done a chain but I wouldn't think they'd need to touch it. If the oil was changed at the same time, that could have triggered it. Could be pure coincidence of course. See if you can get underneath to see exactly where the leak is coming from.

I just let it drain out into a basin as I topped up with fresh coolant (forgot to mention that!)

@@garageofdad thanks for the feedback, I just let the water drain out when removing it, I'm doing an oil change anyway, so I think it's okay. Thank you for the Video 👍🏼

Great point. I actually did replace them but for some reason didn't film it. But yes it is a must.

Hi, i have the same issue same engine but, i can’t drain my coolant because there is no drain plug at the bottom of the radiator. Any suggestions? Appreciate it

@@stratusinvest4791 To be honest, I just let mine escape from the housing with a bowl under the car then dried out what was left with a rag and topped up with fresh antifreeze once the job was done. Not professional I know!!

What o-rings?

@@legioner9 Have a look here on ebay at the gasket kit:- www.ebay.co.uk/itm/393239546025?fits=Car+Make%3ABMW%7CCars+Type%3A120d%7CPlat_Gen%3AE87%7CCars+Year%3A2007%7CModel%3A1+Series%7CVariant%3ADiesel+Hatch%7CEngine%3A1995cc+130KW+177HP+N47+D20+A%3BN47+D20+C%7CBodyStyle%3ARWD+--+E81%7CVariant%3ADiesel+Hatch%7CEngine%3A1995cc+130KW+177HP+N47+D20+A%3BN47+D20+C%7CBodyStyle%3ARWD+--+E81&hash=item5b8ee748a9:g:tukAAOSwTMBgcIR2&amdata=enc%3AAQAHAAABAMi10SGeE5F2tdk3sKcORz6kBBA7lHFXDy%2BLPak%2F2kqK16MaMaM2IGqFaYwCUVQTS%2BKkNbYAquartvy%2FUNvuSKH0XjBf6kpkm%2BOdIxIobz02hid0ZVbjbMn1Yc6%2F8jYHtCMG7N75SE%2Ff7LVJv0t5b42j%2FHnv4CgsMi7ZLeoD%2F3ls3kSQHixU3IzyiHNyK8TEEsSvG3QfXbQoLZCLNu0wPBZ0NlfIM71QGU50NFGCh%2FQ8ZukD%2FyCr8pxZetTJfo2bNhGnxYpZv3rR9trjbYgwXwUP6vSbVWb0L0lS1Odh5mXTz%2B887Y6h7Pvy2Ciy%2FgU0VhP8SUq7aF6k6hVWI%2BI5mNk%3D%7Ctkp%3ABFBM_OX98thh

I put the sealant round the outside of the gasket so it didn't ingress into any internal parts.

The principle is the same but it will be a different part and slightly different location.

Hi thanks. I let the water drain away from the housing until it stopped then topped it up afterwards. I done an oil change at the same time. Use the corrects pec oil and antifreeze.

@@garageofdad Thank you again. Ok but if we dont want to empty the tanks (oil and water) how we can proceed? Because I dont understand when you say: “I let the water drain away from the housing…”

@@user-xv2nv6zu5e Take the housing off and let the water drain away naturally then top up both the water and oil (as you will loose a small amount of both when the housing is removed)

@@garageofdad What do you mean with “Housing”? I’m Spanish and I don’t understand very well this context. Regards

@@user-xv2nv6zu5e The oil filter housing is at 2:10 It holds the oil filter.

You can just top up the oil. Mine needed changing as it was due. The alternator can stay on. It's very easy to remove though and gives much more room to get the housing out and back in. I also disconnected the battery as there's a live cable on top of the alternator (mine didn't have the plastic cover over the connecting lead bolt) Everybody has their own way of doing things! 😄

@@garageofdad okay, this is verh helpful thankyou! If i were to not drain any oil, would it start to pour out of the filter housing? Im going to assume yes😅 and was did any of the coolant need draining as others in the comments were saying about it?

@@a.ward02 P.S. most of the oil is held in the sump, the only oil that will come out is that which is still in the housing.

@@garageofdad oki doki! Thankyou very much for explaining further, and thankyou for the good video

I put the sealer round the outside of the gasket and you have to split the housing to get the 2 pipes off. Sometimes hard to do but they do come apart. Sealer:- www.amazon.co.uk/Visbella-V363-Hi-Temp-Gasket-Plastic/dp/B09SLPHTK4/ref=sr_1_4?crid=16CVUYB706ENS&keywords=visbella+rtv&qid=1679304027&sprefix=visbella+rtv%2Caps%2C94&sr=8-4 O rings:- 2009.bmwfans.info/parts/catalog/E90/Sedan/Europe/318d-N47/RHD/N/2007/november/browse/engine/lubricat_syst_oil_filter_heat_exchanger/

Hey I have sucessfully replaced the seal with all the orings ive used some silicone to on the outside just like you did but now im facing issue with charging like the alternator is dead and it was perfectly fine prior the job so i started digging around checked battery its fine replaced alternator with another 2nd hand one from the scrap yard but its still the same still not charging I have double checked all the connectors that I have unplugged when I was doing the seal to get the access but still no luck any ideas what could of happen ?

@@AndrzejOdGrubego I only removed the alternator to get better access to the housing. Apparently you can do the job without removing it. Did you disconnect the battery? There should be a permanent live to the battery main terminal at all times (two cables) when the battery is connected. It's just a case of checking again then using a code reader to see if it flashes up any faults. Good luck.

Doing it the first time took me about 3 hours but if I had to do it again, it would only take an hour.

@@garageofdad thanks a lot! A professional wanted to ask me 2 days of work… have a merry Christmas!

There's always a bit of oil left in the housing when you take it off. If you can get a mirror in there to see where the oil's coming from that would help. Did you replace the 4 O rings as well? The gasket may have not seated correctly. Good luck.

@@garageofdad Thanks for the reply, I replaced 2 of the O rings, 2 of them looked like O rings the other 2 where flat and would not come out, looked completely different. I did get a mirror in there but hard to tell. Did you drain the oil to replace this? it seems it's above standing level, I know the coolant needs to come out.

@@Leigh20007 Yes, I did an oil change at the same time. I know it's a hassle but you may need to take it off again to make sure it's sealed properly. Also the O rings should all be round, maybe that's the fault. If you have a look at 2:00 you can see where mine was pouring out from and it was one of the O rings which had gone hard over time.

@@garageofdad OK cool ill take it off again next weekend, already ordered a second hand housing from a 2012 n47 (mine is 2008) I already did an oil change yesterday, I will drain coolant again but as the housing is so high on the block I assume draining the oil is not necessary?

You can just top up what oil and water is lost but you can take the opportunity to change them both.

@@garageofdad thanks, is there any possibility that the oil leak comes from the oil pan too or not comun?

@@Eddy-th3kc Usually the rocker cover gasket and oil filter housing gasket (or sometimes someone overflowing the oil cap) Sometimes good to clean the engine, run it a while then see where it's coming out from.

@@garageofdad just removed mine right now, it was leaking for shore and I think from the o-rings and I didn't order them, now just waiting for them to put it together, e think I will remove de flaps and EGR, looks so dirty on the manifold and throttle body

@@Eddy-th3kc Good thinking it will make a difference and not too bad a job to do.

No but some coolant will escape out (approx 1/2 litre) which you'll need to top up once it's all assembled.

Hi, no just pulled it to the side out the way.

@@garageofdad so did it all this morning wasn't as bad as I expected to be fair. Few different size extensions for the ratchet and it went ok. Did the 4 rings aswell. So it only leaked when cold like yours and on the first run had a bit of remaining coolant that was sat on the block drip down but now nothing so fingers crossed it's all good. Going to wait for the engine to cool and take it for another run. Thanks for your reply about the dipstick👍

@@Saltermedia That's great. It seems a daunting job but relatively simple when you get into it.

Did you put the O rings on that are usually with the kit? I also used a high temp sealant too

Where did you put the sealant and where did u get the kit from

I’ve had a look this morning and it’s coming from the bottom of housing where it meets the block do u know how tight they should be the bolts

@@oliverchallans3728 I got mine on ebay but have a look for your own car type. Here's one for a 120D www.ebay.co.uk/itm/274913539117?fits=Car+Make%3ABMW%7CCars+Type%3A120d%7CPlat_Gen%3AE81%7CCars+Year%3A2007%7CModel%3A1+Series%7CVariant%3ADiesel+Hatch%7CEngine%3A1995cc+130KW+177HP+N47+D20+A%3BN47+D20+C%7CBodyStyle%3ARWD+--+E81&hash=item40021fb42d:g:N6sAAOSwPz1hH7Oe&amdata=enc%3AAQAHAAAAwBfrihrTKWDdk9Sc7fjwvojjoA0OcF1jtRZf8b8RnJKBr18Da5FvwPMe4Xaebq42KMCWDTH%2Bb8onf9HXYyhlQKp%2FtJoiSjUZbPHyK5clGoPo%2B%2FbstB3pYO%2BkMTxhXZlzP9P8aPbj0zsqYdT3OGeAyUcljyU%2Bapw9MF6w1UNi9T0dHyYAo3WVFibHZ7zVOUuBZsrw7%2FMl666JePo1w9fGEkGxY5LscSXmY6bzvjc%2BnUwGIlkhJ22G3Ht03oqlCbIzbw%3D%3D%7Ctkp%3ABk9SR_qb0aXJYQ

@@oliverchallans3728 The sealant I put round the OUTSIDE of the main gasket and NOT the O rings. You have to split and clean the body of the housing to get at them They are usually tight!

The cost! The housing was good fortunately and I used high performing gasket sealer to make sure of a good seal.

@@garageofdad ok thanks for the quick reply, thought it might have been due to cost as it’s the entire oil filter housing assembly. I need to change this gasket to but been advised to do the entire assembly due to high mileage. 😱

How long time did it take .Best regards Anders

@@2anden1 Took me a couple of hours

@@garageofdad bmw wanted £650 for housing filter assembly (inc gaskets). I bought aftermarket one for £170. Labour cost £160 but that also included new antifreeze and oil. £330 in total.

Oh dear! some jobs just suck. Seems nowadays - most of them!!

I'm so sorry ☹