説明
I start by sharing why I was away for almost a year and what is next for Vehicular DIY. Then we dive into a full B58 oil pump DIY and upgrade. We diagnose uses oil with no smoke, inspect the relief valve, and replace the pump. I also explain how memberships work and what content is available at each tier.
Link to members only playlist:
https://youtube.com/playlist?list=UUMO3iDNeRAiRpe0nVz7MaN_kg&si=UF6fqMTvxlQ8A213
Become a member here:
https://www.youtube.com/channel/UC3iDNeRAiRpe0nVz7MaN_kg/join
Affiliate link for updated oil pump to replace 453:
https://bit.ly/48DateG
454 was just updated, here is an affiliate link for the updated 454 pump:
https://bit.ly/46GL55k
Affiliate link to sealant I used:
https://ebay.us/ef7PBu
Affiliate link to four bolts to hold down pump:
https://bit.ly/47ZJ3PZ
Affiliate link to the reverse thread bolt that holds down the gear:
https://bit.ly/3Ixm6JE
Climate failure modes
Cold climates can make the plastic pump body or vanes brittle. A crack or broken vane can shed debris and block oil flow, which risks starvation.
Hot climates can make the relief valve stick. A stuck relief can raise system pressure and push oil past seals or into the charge tract. This can show up as oil consumption with no visible smoke.
Parts nuance
Many early Gen 2 B58 large-chassis applications list 11418646454 for the pump. Catalogs often keep that same number on the X5 even as some sedan and coupe models moved to a revised part. Always verify by VIN.
Early 2020 M340i and related B58TU cars show 11418646453, later superseded by 11419895359. The 359 pump is widely listed as the revised unit across many B58C and B58D models. Verify by VIN for your build month.
Models commonly shown with 11418646454
G05 X5 40i and 45e
G06 X6 40i
G07 X7 40i
G11 or G12 740i
G14 or G15 or G16 840i
Models where 11418646453 is often superseded to 11419895359
G20 M340i
G22 or G26 M440i
G30 540i
G01 X3 M40i and G02 X4 M40i
G29 Z4 M40i
Why this matters
Cold breakage can block oil passages and starve bearings. Heat-related sticking of the relief valve can spike pressure and increase oil consumption without visible tailpipe smoke. If your B58 is using oil and you do not see smoke, start with a relief valve inspection and consider a full pump replacement or the revised unit where applicable.
What I cover
Why I was away and the future of the channel
Symptoms and simple checks
Tools and parts overview
Relief valve inspection
Full pump removal and install
Priming and first start
Data and oil-use notes
How memberships and tiers work
Reminder
Catalogs differ by region and production month. Always confirm fitment by VIN before ordering.