Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2009 COOPER - Convertible R57.
The 2009 Mini Cooper Convertible (R57) enters the reference record as a passenger car built on the R57 platform, pairing its R57 engine with a six-speed automatic transmission and EPA fuel economy ratings of 25 mpg city, 34 mpg highway, and 29 mpg combined, with a 4.4-quart 5W-30 oil specification at service. The convertible body configuration on the R57 chassis represents a focused application of the platform's passenger-car layout. Reliability-wise, the model year has logged 151 owner complaints — with air bags as the most-cited area — alongside a single recall, a profile that frames it as a broadly serviceable entry whose concerns remain concentrated in one safety subsystem rather than spread across the vehicle.
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 47 · 480 CCA battery, OE oil filter 11428643758. 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 | 11428643758 alt 11427622446 |
| Engine air filter | 13717561235 alt 13717568728 |
| Fuel filter | 11252754870 |
| Battery | 61217575326 alt 61217571896 |
| Front wiper blades | 61610028137 |
| Thermostat | 11518613803 alt 11518613804 |
| Cabin air filter | 64319127516 |
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S6) |
| Overall length | 145.7 in |
| Overall width | 66.1 in |
| Overall height | 55.5 in |
| Wheelbase | 97.2 in |
| Curb weight | 2546 lb |
| Track (front / rear) | 57.5 / 57.5 in |
| Weight distribution (front / rear) | 61/39 |
| EPA city / highway / combined | 25 / 34 / 29 mpg |
| Drivetrain | Front-Wheel Drive |
| Recommended fuel | Premium Gasoline |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 4.4 qt of 5W-30 engine oil, DOT 4 brake fluid. Torque lug nuts to 103 ft-lbs, the oil drain plug to 23.0 ft-lbs.
| Automatic Transmission Fluid | With CVT: BMW part number 83220136376 |
| Brake Fluid | DOT 4 |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | SYNTHETIC · 5W-30 |
| Engine Oil Capacity | 4.4 qt |
| Manual Transmission Fluid Capacity | 3.6-4.0 |
| Power Steering Fluid | Use Pentosin CHF 11S |
| Camshaft Bearing/Carrier Cap Bolts or Studs | 6 ft-lbs |
| Intake Manifold to Engine Bolts | Bolts: 11, nuts: 15 ft-lbs |
| Exhaust Manifold to Cylinder Head Bolts | 18.4 ft-lbs |
| Intake Manifold to Engine Bolts | Bolts: 11, nuts: 15 ft-lbs |
| Exhaust Manifold to Cylinder Head Bolts | 18.4 ft-lbs |
| Intake Manifold to Engine Bolts | Bolts: 11, nuts: 15 ft-lbs |
| Exhaust Manifold to Cylinder Head Bolts | 18.4 ft-lbs |
| Engine Oil Pan Drain Plug | 23.0 ft-lbs |
| Lug Nuts | 103 ft-lbs |
| Curb Idle Speed (No Load) | 770 rpm |
| Curb Idle Speed Variance (No Load) | 50 rpm |
| Spark Plug Manufacturer | BMW |
| Spark Plug Gap | Not adjustable in |
| Spark Plug Torque | 14.8-19.2 ft-lbs |
| Refrigerant | R134a |
| Standard BCI Group Number | 47 |
| Standard BCI Cranking Performance | 480 cca |
| Pressure Test | 22 psi |
| Radiator Cap Pressure Relief | 18-22 psi |
| Engine Compression | 116-174 PSI. 43 maximum variation. psi |
| Torque to Knuckle | 81 ft-lbs |
| Minimum Pad Thickness | Front: 0.118; Rear: 0.0118 in |
| Rotor Nominal Thickness From | 0.394 in / 0.866 in / 0.945 in |
| Rotor Nominal Thickness To | 0.394 in / 0.866 in / 0.945 in |
| Rotor Minimum Machining | 0.031 in |
| Rotor Discard at or Under | 0.331 in / 0.803 in / 0.882 in |
| Rotor Finish | 0.00013 μin |
| 1 | 4 ft. lbs., Step 2: 11 ft. lbs., Step 3: 130 | 4 ft. lbs |
| 1 | 6 ft. lbs., Step 2: 22 ft. lbs., Step 3: 90 | 6 ft. lbs |
| 1 | 37 ft. lbs., Step 2: 100 | 37 ft. lbs |
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the spark plugs every 100,000 mi.
| Every 100,000 mi | Oxygen Sensor (replace) · Spark Plugs (replace) · Transmission Assembly (drain & refill) |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Owner complaints about the 2009 Mini COOPER - Convertible dominate in one area — the air bags, 48 of 151 reports (32%), well ahead of the next concern. None of this vehicle's 1 recall campaigns target the air bags, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 1 of the reports describe a crash and 11 a fire — a small share of the total, but worth weighing against the air bags pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.
All 151 complaints on record, top 8 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 1 of 1 campaigns on record for this vehicle.
BMW of North America, LLC (BMW) is recalling certain 2008-2014 MINI Clubman Cooper, Clubman Cooper S, Clubman John Cooper Works, and 2007-2013 MINI Hardtop 2-Door Cooper, Cooper S, and John Cooper Works vehicles sold… Remedy: Dealers will inspect the sunroof drains, interior footwell area, and FRM and, depending upon the results of the inspection, certain components will be replaced. Owner notification…
Showing 5 of 94 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| M010616 | 2026-05-06 | Electrical System | The Footwell Module (FRM) limited warranty for defects in materials and / or workmanship… |
| M610226 | 2026-04-30 | Electrical System | While performing a 12-Volt battery jump start, disconnect, or replacement, vehicle test… |
| M010616 | 2025-03-18 | Electrical System | The Footwell Module (FRM) limited warranty for defects in materials and / or workmanship… |
| M511616 | 2023-11-02 | Structure | Cavity protection applied to underside of the hood is leaking out onto the wheel arch… |
| M610607 | 2023-10-25 | Electrical System | MINI electrical systems have continued to develop over the past few years. As a result… |
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.
4.4 qt of USE MINI SYNTHETIC 5W-30 MOTOR OIL, per the factory manual.
NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 25 city / 34 highway / 29 combined mpg.