BMW F80 M3 Oil Change (S55)
The single best thing you can do for an S55 — and the cheapest. Fresh oil is what protects the rod bearings, so smart owners change it well ahead of BMW's interval. It's a straightforward DIY once you know the M-spec oil, the capacity and the no-dipstick level check. Here's how.
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The S55 oil change is mechanically simple — drain, swap the cartridge filter, refill — but two things make it specific to an M car: it takes a particular M-spec oil and a fair amount of it, and there's no dipstick, so the final level is set electronically. Do it often and it's the most effective, lowest-cost protection for the engine's most expensive parts.
Parts & Tools You'll Need
The right oil, a cartridge filter kit, and a few basics.
Step-by-Step
Warm It, Then Lift
Run the engine briefly so the oil flows freely, then shut it off. Raise the car on ramps or stands on level ground and let it settle — warm oil drains faster and more completely.
Drain the Oil
Position a large pan, remove the drain plug and let it drain fully — the S55 holds a lot, so give it time. Inspect the old oil and plug as it drains; metal flake is worth investigating.
Swap the Cartridge Filter
Open the top-mounted filter housing with the correct cap socket, lift out the old cartridge, and fit the new one. Replace the cap O-rings with the fresh ones from the kit — never reuse them.
Reinstall the Drain Plug
Fit a new crush washer, reinstall the drain plug and torque it to spec — snug, not gorilla-tight. Tighten the filter cap to its spec too; both want a torque wrench, not guesswork.
Refill With the Right Oil
Add the correct M-spec oil, going slightly under the full capacity at first. Run the engine for a moment to circulate it, then shut off and let it settle before checking the level.
Set the Level (No Dipstick)
There's no dipstick — check the oil level through the iDrive menu with the engine warm and the car level, and top up in small amounts to the correct reading. Don't overfill. Reset the service interval if needed.
Use the right M-spec oil, and change it early
The S55 needs the correct M-approved oil — don't substitute a generic grade. And because fresh oil is the cheapest protection for the rod bearings, change it well ahead of BMW's interval (many owners do ~5,000 miles, sooner if tracked). This single habit matters more than almost anything else you'll do.
Quick Specs
General guidance — verify for your exact car.
| Item | Detail |
|---|---|
| Oil spec | BMW M-approved grade for the S55 — confirm for your car |
| Capacity | ~6.5–7 quarts (set final level via iDrive) |
| Filter | Cartridge, top-mounted; replace cap O-rings |
| Interval | ~5,000 mi / yearly (sooner if tracked) |
| Level check | Electronic — iDrive menu, warm & level (no dipstick) |
FAQ
What oil does the S55 take?
A specific BMW M-approved oil — the S engines call for a particular grade, so don't substitute a generic one. Buy the correct spec and enough of it (around 6.5–7 quarts). See our BMW oil guide for the details.
How often should I change it?
Well ahead of BMW's interval — many owners do roughly every 5,000 miles or annually, and sooner for tracked cars. Frequent oil changes are the cheapest, most effective protection for the rod bearings, so don't stretch them.
How do I check the level with no dipstick?
Through the iDrive menu, with the engine warm and the car on level ground. Add oil in small amounts to reach the correct reading and avoid overfilling.
How much oil does it hold?
Around 6.5–7 quarts — more than a regular 3 Series — so buy enough and size up your drain pan. Always set the final level by the electronic reading rather than just pouring in the full amount.
Do I need to reset anything after?
Reset the oil-service item in the Condition Based Service menu so the car tracks the interval correctly. A scan tool isn't required for the oil change itself, but it makes service resets and other jobs easier.
You're Done
Fresh oil and filter in your S55 — the simplest, most valuable maintenance you can do, and the best protection for the rod bearings. The rules: the right M-spec oil, change it early, fresh seals and a torque wrench, and set the level in iDrive. Keep it up and the engine will thank you. See the rod bearings guide and maintenance & cost, then back to the F80 hub.