Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 Cooper.
The 2018 Mini Cooper pairs a six-speed automatic transmission with a 0W-20 lubrication package (4.5-quart capacity) to deliver EPA ratings of 24 mpg city, 32 highway, and 27 combined. Owner feedback for this model year is notably thin—just six complaints across the entire platform, none serious enough to trigger a recall, with the electrical system the most frequently cited area. Viewed against the model's full complaint history spanning 2001 through 2026, where the troubled 2005 model year generated 843 complaints and the 2024 model drew only one, the 2018 sits comfortably in the modern low-complaint era, suggesting the brand's early reliability troubles were well behind it by this point.
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 48 · 760 CCA battery, OE oil filter 11425B3A1A5. 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 | 11425B3A1A5 alt 11428570590 |
| Engine air filter | 13718513944 |
| Spark plug | 12120040551 |
| Battery | 61216805461 alt 61217555719 |
| Front wiper blades | 61610049744 |
| Cabin air filter | 64316835406 alt 64316835405 |
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S6) |
| Overall length | 151.2 in |
| Overall width | 68.1 in |
| Overall height | 55.5 in |
| Wheelbase | 98.4 in |
| Curb weight | 2606 lb |
| Track (front / rear) | 59.1 / 59.1 in |
| Weight distribution (front / rear) | 61/39 |
| EPA city / highway / combined | 24 / 32 / 27 mpg |
| Drivetrain | Front-Wheel Drive |
| Recommended fuel | Premium Gasoline |
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the Cooper 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 |
|---|---|---|---|---|---|
| 2018 | E Countryman S ALL4 1.5L Turbo I-3 + Elec 65-kW 7.6-kWh | 5.80 sec | 14.60 sec | 221 hp | AWD |
| 2018 | E Countryman S ALL4 1.5L Turbo I-3 + Elec 65-kW 7.6-kWh | 5.90 sec | 14.60 sec | 221 hp | AWD |
| 2018 | E Countryman S ALL4 1.5L Turbo I-3 + Elec 65-kW 7.6-kWh | 6.80 sec | 15.40 sec | 221 hp | AWD |
| 2017 | John Cooper Works Clubman ALL4 2.0L Turbo I-4 | 6.70 sec | 14.80 sec | 228 hp | AWD |
| 2017 | Clubman S ALL4 2.0L Turbo I-4 | 7.00 sec | 15.40 sec | 189 hp | AWD |
| 2017 | Countryman S ALL4 2.0L Turbo I-4 | 7.00 sec | 15.50 sec | 189 hp | AWD |
| 2017 | Countryman S ALL4 2.0L Turbo I-4 | 7.10 sec | 15.40 sec | 189 hp | AWD |
| 2017 | Countryman S ALL4 2.0L Turbo I-4 | 7.20 sec | 15.50 sec | 189 hp | AWD |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 4.5 qt of 0W-20 engine oil, DOT 4 brake fluid. Torque lug nuts to 77 ft-lbs. The firing order is 1-3-4-2. 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.
| Automatic Transmission Fluid | ATF |
| Automatic Transmission Fluid Capacity | 6.3 |
| Automatic Transmission Fluid | ATF6 |
| Automatic Transmission Fluid Capacity | 5.8 |
| Automatic Transmission Fluid | ATF6 |
| Automatic Transmission Fluid Capacity | 7.4 |
| Brake Fluid | DOT 4 |
| Clutch Fluid | DOT 4 |
| Crankshaft Position (CKP) Sensor Bolt(s) | 7.4 ft-lbs |
| Camshaft Position (CMP) Sensor Bolt(s) | 3.0 ft-lbs |
| Crankshaft Position (CKP) Sensor Bolt(s) | 7.4 ft-lbs |
| Camshaft Position (CMP) Sensor Bolt(s) | 3.0 ft-lbs |
| Engine Coolant Temperature (ECT) Sensor Bolt(s) | 9.0 ft-lbs |
| Oxygen (O2S) Sensor Bolt(s) | 31.0 ft-lbs |
| Knock Sense (KS) Bolt(s) | 16.0 ft-lbs |
| Oxygen (O2S) Sensor Bolt(s) | 31.0 ft-lbs |
| Lug Nuts | 77 ft-lbs |
| Cylinder Firing Order | 1-3-4-2 |
| Standard BCI Group Number | 48 |
| Standard BCI Cranking Performance | 760 cca |
| Optional BCI Group Number | 94R |
| Optional BCI Cranking Performance | 800 cca |
| Brake Caliper Bolt to Carrier Torque | Front: 26 ft-lbs |
| Brake Caliper Carrier to Hub Bolt Torque | Front: 81 ft-lbs |
| Vented Rotor Minimum Thickness for Replacement | Front: .803; Rear: .331 |
| Vented Rotor Minimum Thickness after Refinish | .031 |
Prep Using new bolt
| 1 | 155.0 ft. lbs., Step 2: 90°. | 155 ft. lbs |
Prep Using new bolt
| 1 | 155.0 ft. lbs., Step 2: 90°. | 155 ft. lbs |
Prep Using new bolt
| 1 | 155.0 ft. lbs., Step 2: 90°. | 155 ft. lbs |
| 1 | 44.0 inch lbs. | 44 in |
| 2 | 22.0 ft. lbs. | 22 ft. lbs |
| 3 | 70.0 degrees | 70 degrees |
| 4 | 70.0 | |
| 1 | 44 inch lbs. | 44 in |
| 2 | 15.0 ft. lbs. | 15 ft. lbs |
| 3 | 70.0 degrees | 70 degrees |
| 4 | 70 degrees | 70 degrees |
| 1 | 30.0 ft. lbs., Step 2: 120 degrees. Replace Screws | 30 ft. lbs |
| 1 | 21.0 ft. lbs., Step 2: 180 degrees. Replace Screws | 21 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 | 22.0 ft. lbs. | 22 ft. lbs |
| 2 | 90 degrees | 90 degrees |
| 3 | 180 degrees | 180 degrees |
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 | Bolts 1-10 | 22 ft. lbs |
| 2 | Bolts 1-10 | 90 degrees |
| 3 | Bolts 1-10 | 180 degrees |
| 4 | 14.5 | |
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 | 22.0 ft. lbs. | 22 ft. lbs |
| 2 | 90 degrees | 90 degrees |
| 3 | 180 degrees | 180 degrees |
| 1 | Bolts 1-10 | 22 ft. lbs |
| 2 | Bolts 1-10 | 90 degrees |
| 3 | Bolts 1-10 | 180 degrees |
| 4 | 14.7 | |
| 1 | 18.0 ft. lbs. | 18 ft. lbs |
| 2 | 60.0 degrees | 60 degrees |
| 3 | 60.0 | |
| 1 | 18.0 ft. lbs. | 18 ft. lbs |
| 2 | 60.0 degrees | 60 degrees |
| 3 | 60.0 | |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The Mini Cooper’s federal record reveals a generational arc that transitions from highly problematic early years—peaking at 843 complaints in 2005—into a period of significantly lower complaint volumes by the mid-to-late 2010s. Within this mature phase, the 2018 model year represents a statistical low point, dropping to just 6 complaints with zero recalls and zero investigations, which improves upon the 18 complaints and 3 recalls seen in 2017 and the 10 complaints and 2 recalls in 2019. However, 2018 still carries 190 technical service bulletins, down from 262 in 2017 but substantially higher than the 72 recorded in 2020, suggesting the manufacturer was actively addressing minor service nuances even without major safety defects. The sparse 2018 complaints are distributed across the electrical system and engine without a dominant root cause specified in the data, and the year registers only 3 crash complaints and 0 fire complaints. Given its clean federal record and position at the low ebb of the generation's complaint arc, the 2018 Mini Cooper is an excellent, low-risk year to purchase on the used market.
All 6 complaints on record, top 5 components.
Source: NHTSA Office of Defects Investigation complaint database.
No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.
Showing 5 of 190 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| M610223 | 2023-03-01 | Exterior Lighting | The buttons on the gear selector switch (GWS) do not work, or the function indicator… |
| M840322 | 2023-03-01 | Electrical System | The 3G network in the US has been shut down. This means that only the 4G network will be… |
| M610123 | 2023-03-01 | Electrical System | Oscillations in the electric drive can occur. As a result, the 12 V positive battery… |
| M630122 | 2023-02-01 | Electrical System | Ambient lighting changes color after the vehicle goes to sleep. |
| M540122 | 2022-11-01 | Structure | It is possible that the guide stem (aka rotational axis) on the wind deflector can break… |
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.
4.5 qt of 0W-20 STARBURST, per the factory manual.
NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 24 city / 32 highway / 27 combined mpg.