How to: BMW M30 Engine Oil Replacement

How to change the oil on a BMW M30 inline 6 cylinder. This particular vehicle I am working with here today is a 1984 BMW 733i e23 body style equipped with a 3.2L inline 6. The M30 can also be found on the E24, E28, E32, and E34 vehicles. Oil weights will vary depending on where you’re located, the owner’s manual does have a good chart for helping pick the correct oil weight. Total oil required for this engine is 6.1 US quartz, 5.75 litres, or 10.1 pints.
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Tools/Supplies Needed:
-19mm 3/8” drive socket
-3/8” ratchet
-3/8” drive sockets
-clean rag
-oil drain pan
-oil
-oil filter
-filter housing o-ring
-drain plug crush washer
Procedure:
-start by elevating the front of the vehicle, for this I am using drive on ramp
-locate the oil drain which is located on the bottom of the oil pan of the engine, this uses a 19mm socket with a 3/8” ratchet
-place the drain pan directly below the oil plug
-loosen the plug, remove, and then allow the oil to drain
-remove the oil filter cartridge which is located towards the front of the engine on the side of the block
-using a 3/8” drive ratchet, loosen the main bolt on the housing, this holds on the filter cartridge case
-ensure the oil drain pan is directly underneath, you may need to break this free a little to get the housing to drop down, there will be oil inside
-let it drain a little if possible, otherwise it can get messy when removing it
-remove the main bolt, then remove the cartridge housing
-you can dump some more out of the cartridge with the drain pan directly underneath and have a rag handy to prevent any drips
-dump the remaining oil into the drain pan, just to give you a peak at the cartridge housing and old filter
-clean the housing to remove any old oil or residue so we have a fresh start with new oil
-you can use a little degreaser and a clean rag
-remove the old gasket, a new one should be supplied with the new filter
-clean it’s mounting surface so it’s ready for a new gasket
-install new crush washers which should be supplied with the new oil filter on the mount housing bolt and the oil pan drain plug
-I like to prime the housing, so on start up the engine isn’t starving of oil, a couple inches of oil in the bottom is all that’s needed
-pair up the oil and new filters to ensure they are the same, then install the new filter
-it’s a good idea to wipe clean the mounting surface where the cartridge housing meets
-put the cartridge housing in place, then reinstall the bolt and tighten accordingly
-make sure the sealing face is clean where the drain plug sits and then reinstall
-for filling you may or may not need a funnel, I did as it was a windy day and my strut brace does prevent me from getting close to the fill location on the valve cover
-oil weights will vary depending on where you’re located, the owner’s manual does have a good chart for helping pick the correct oil weight
-total oil required for this engine is 6.1 US quartz, 5.75 litres, or 10.1 pints
-to check the oil, the dipstick is located at the opposite side of the engine with a yellow handle
-remove the dipstick, wipe clean, then insert and pull out again to check the level
-I normally check this a couple times for an accurate reading, it should be between the minimum and maximum marks
-start the engine, check for leaks, remove the vehicle off the ramps, then turn the engine off and check again
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[@hot_rod_stu7695]

Straight to the point as always, thumbs up!

[@4DIYers]

Thank you!

[@WestGreenRacing]

Great video, thanks for the help!

[@4DIYers]

No problem!

[@smashervt]

Great videos! Subscribed!

[@4DIYers]

Awesome to hear, thank you so much! Will be having more video for this car this summer :)

[@jonathan643]

Good video as allways! Any good tips for increasing a little hp in a m30b25 1986 e28? Its jetronic i think. Grtz and keep up the good work.

[@4DIYers]

Thank you :) That might be a Jetronic, I though that ended in the mid 80s but after looking at the years they continues through the mid 80s too. Mine is a Motronic. Biggest thing I've found for performance is ensuring the engine is running right. Tune up, refurbishing the AFM (made a huge difference for me), adjusting the valves (also a big improvement), and switching over to synthetic fluids (engine, transmission, diff). Then you can get into more complicated stuff like a performance catalytic converter (over 30yrs, it could be plugged), improved exhaust, headers (but expensive, I'll be getting one eventually for mine), mechanical fan conversion to electric, lighter wheels, port match and polish the intake runners (I have a couple related tutorials, might be doing this to my Volvo once the weather warms up), and chip upgrade.

[@lasanheironagringa7846]

Excellent video! I will do it on my 635 pretty soon.

[@4DIYers]

Thank you :)

[@justinmackay09]

Where can the new cartridge be bought? Could someone help me with the information of thr cartridge

[@SuperVance999]

What oil do you use ?

[@danielmichaelb5995]

Hey my 1990 e34 535i has no owners manual book and i dont know the grades of oil the book you showed with the grades of oil can i refer to i use 5w30 in winter but summer is almost here and i wanna switch soon ? I have the bmw engine m30b35 thank you .

[@4DIYers]

I just uploaded the photos to my Facebook page so you can see it easier facebook.com/4diyers/posts/1656665721081486

[@hawaiianrobot]

the housing is in a much better place in the M30B35 engine :)

[@4DIYers]

Yeah this isn't the friendliness of designs lol. I really like the M6X design.

[@hawaiianrobot]

i had to go look that up, it's in a really nice place in the M60. i really prefer cartridge filters over the screw-on types

[@bavarianbanshee]

Good news to me, since I have to do mine soon.

[@dsingh11]

Have you done gearbox service on m30

[@4DIYers]

Not yet.