Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 M240i.
The 2018 BMW M240i is offered with the standard eight-speed automatic transmission and EPA fuel-economy ratings of 21 mpg city, 30 mpg highway, and 24 mpg combined, situating it within the model's established efficiency range. Within owner-complaint data spanning the 2017 through 2025 model years, the 2018 logs two total reports—one below the 2017 high of three and one above the 2025 low of one—with electrical system issues representing the most reported area and two recalls on file. That middle-of-the-pack footprint, combined with a narrow complaint range across the production run, makes the 2018 a stable reference point for researchers tracking the model's reliability arc.
Fluid capacities, tune-up values and fuel economy at a glance.
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses a BCI 94R · 800 CCA battery, OE oil filter 11428583896. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
| Engine oil filter | 11428583896 alt 11427826799 |
| Engine air filter | 13718632502 |
| Spark plug | 12120040551 |
| Battery | 61216806755 alt 61217555719 |
| Front wiper blades | 61615A43583 |
| Thermostat | 11538658571 alt 11537642854 |
| Cabin air filter | 64116821995 alt 64119237555 |
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S8) |
| Overall length | 174.4 in |
| Overall width | 69.7 in |
| Overall height | 55.5 in |
| Wheelbase | 105.9 in |
| Curb weight | 3953 lb |
| Track (front / rear) | 59.8 / 60.2 in |
| Weight distribution (front / rear) | 50/50 |
| EPA city / highway / combined | 21 / 30 / 24 mpg |
| Drivetrain | Rear-Wheel Drive |
| Recommended fuel | Premium Gasoline |
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the M240i of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.
| Year | Trim / engine | 0–60 | ¼ mile | HP | Drivetrain |
|---|---|---|---|---|---|
| 2017 | Coupe 3.0L Turbo I-6 | 4.30 sec | 12.70 sec | 335 hp | RWD |
| 2017 | Coupe 3.0L Turbo I-6 | 4.30 sec | 12.90 sec | 335 hp | RWD |
Capacities, torques and tune-up values from the factory service manual.
This engine DOT 4 brake fluid. Torque lug nuts to 103 ft-lbs, the oil drain plug to 20.0 ft-lbs. The firing order is 1-5-3-6-2-4. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.
| Brake Fluid | DOT 4 |
| Clutch Fluid | DOT 4 |
| Crankshaft Position (CKP) Sensor Bolt(s) | 9.0 ft-lbs |
| Camshaft Position (CMP) Sensor Bolt(s) | 7.4 ft-lbs |
| Oxygen (O2S) Sensor Bolt(s) | 35.0 ft-lbs |
| Knock Sense (KS) Bolt(s) | 16.0 ft-lbs |
| Nitrogen Oxide (NOX) Sensor Bolt(s) | 33.0 ft-lbs |
| Oil Pan to Block Bolts | 9.0 ft-lbs |
| Engine Oil Pan Drain Plug | 20.0 ft-lbs |
| Lug Nuts | 103 ft-lbs |
| Cylinder Firing Order | 1-5-3-6-2-4 |
| Refrigerant | R134a |
| Refrigerant Capacity | 1.19-1.23 lbs |
| Oil Group | PAG |
| Oil Type | 46 |
| Standard BCI Group Number | 94R |
| Standard BCI Cranking Performance | 800 cca |
| RPM | 725.0 |
| 1 | 30.0 ft. lbs., Step 2: 120 degrees. Replace Screws | 30 ft. lbs |
Prep Do not reuse old bolts. Use new bolts coated with clean engine oil. Tighten all bolts to finger tight then continue on with the following procedure.
| 1 | 13mm size head bolts | 22 ft. lbs |
| 2 | 13mm size head bolts | 37 ft. lbs |
| 3 | 13mm size head bolts | 90 degrees |
| 4 | 13mm size head bolts | 90 degrees |
| 5 | 13mm size head bolts | 90 degrees |
| 6 | 13mm size head bolts | 90 degrees |
| 7 | 11mm size head bolts | 22 ft. lbs |
| 8 | 11mm size head bolts | 90 degrees |
| 9 | 11mm size head bolts | 90 degrees |
| 10 | 11mm size head bolts | 90 degrees |
| 1 | Bolts 1-7 | 3.7 ft. lbs |
| 2 | Bolts 1-7 | 7.3 ft. lbs |
| 3 | 7.3 | |
| 1 | 7.3 ft. lbs. | 7.3 ft. lbs |
| 2 | 7.3 ft. lbs. | 7.3 ft. lbs |
| 3 | 11.8 ft. lbs. | 11.8 ft. lbs |
| 4 | 11.8 ft. lbs. | 11.8 ft. lbs |
| 5 | 11.8 | |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The 2018 model sits near the midpoint of a generation that shows a clear downward trajectory in technical service bulletins (TSBs), dropping from 239 in 2017 to just 2 by 2025, while complaints remain low (2 in 2018 versus 3 in 2017 and 3 again in 2022). Recalls, however, spike modestly in 2018 with two occurrences—the only year in the dataset besides 2021 that registers more than one recall—before falling to one or zero in the surrounding years. The limited complaint profile for 2018 focuses exclusively on Electrical System and Exterior Lighting issues, with no reported crash or fire complaints, and the data does not specify root causes. Overall, 2018 reflects a year of modest recall activity amid a broader trend of decreasing service interventions, suggesting it is a relatively safe choice but buyers should verify the specific recall items before purchase.
All 2 complaints on record, top 2 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 2 campaigns on record for this vehicle.
BMW of North America, LLC (BMW) is recalling certain 2018 BMW 540d xDrive vehicles. The crankshaft sensor may be equipped with incorrect firmware, preventing the sensor from properly processing input from the crankshaft… Remedy: BMW will notify owners, and dealers will replace the crankshaft sensor, free of charge. The recall began September 6, 2018. Owners may contact BMW customer service at…
BMW of North America, LLC (BMW) is recalling certain 2018 230i, 230i xDrive, M240i, M240i xDrive, M2, and X3 xDrive 30i SAV vehicles. These vehicles may have an error in the software for the instrument panel, causing… Remedy: BMW will notify owners, and dealers will update the instrument cluster display software, free of charge. The recall is expected to begin January 8, 2018. Owners may contact BMW…
Showing 5 of 168 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| B611305 | 2024-01-11 | Electrical System | The electrical system of BMW vehicles has been subject to an ongoing development process… |
| B360121 | 2024-01-08 | Steering | At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when… |
| B011423 | 2023-11-13 | Engine And Engine Cooling | PRESSURE CONTROL VALVE (PCV) EXTENDED LTD WTY 15 YEARS/150,000 MILES |
| B340714 | 2023-10-13 | Service Brakes, Hydraulic | Functional noises (squealing/honking) when braking shortly before the vehicle comes to a… |
| B651523 | 2023-05-01 | Electrical System | After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode)… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.
Cross-vehicle references for the kinds of data on this page.
NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 21 city / 30 highway / 24 combined mpg.