Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2010 135I Convertible.
The 2010 BMW 135i Convertible is a passenger‑car built on the E88 platform and equipped with an automatic S6 gearbox, delivering an EPA rating of 17 mpg city, 26 mpg highway and 20 mpg combined while its 6.9‑quart oil capacity accepts 0W‑30, 0W‑40 or 5W‑30 viscosities. Its compact, retractable roof and rear‑wheel‑drive layout are complemented by a modestly efficient powertrain that balances performance with fuel economy. Reliability data for this model year show 45 owner complaints, most frequently centered on air‑bag issues, and ten recalls, placing the 2010 iteration as a relatively average point in the 135i’s service record—neither markedly problematic nor exceptionally robust.
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 · 570 CCA battery, OE oil filter 11428683168. 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 | 11428683168 alt 11428637821 |
| Engine air filter | 13717556961 |
| Spark plug | 12120037244 |
| Front wiper blades | 61615A87C97 |
| Thermostat | 11537549476 |
| Cabin air filter | 64319142114 alt 64319313519 |
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S6) |
| Overall length | 172 in |
| Overall width | 68.9 in |
| Overall height | 55.5 in |
| Wheelbase | 104.7 in |
| Curb weight | 3380 lb |
| Track (front / rear) | 57.5 / 58.3 in |
| Weight distribution (front / rear) | 52/48 |
| EPA city / highway / combined | 17 / 26 / 20 mpg |
| Drivetrain | Rear-Wheel Drive |
| Recommended fuel | Premium Gasoline |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 6.9 qt of 0W-30 / 0W-40 / 5W-30 engine oil, DOT 4 brake fluid. Torque lug nuts to 88 ft-lbs, the oil drain plug to 18.4 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.
| Automatic Transmission Fluid | BMW part number 83220142516 |
| Automatic Transmission Fluid Capacity | 10.5-11.5 |
| Brake Fluid | DOT 4 |
| Differential Gear Oil Capacity | 1.5 Pints |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 0W-30 · 0W-40 · 5W-30 · 5W-40 |
| Engine Oil Capacity | 6.9 qt |
| Manual Transmission Fluid | BMW MTF part number 83229408942 |
| Crankshaft Pulley and/or Damper Bolts | 18 ft-lbs |
| Engine Flywheel Bolts | AT: 92 ft-lbs, MT: 89 ft-lbs |
| Intake Manifold to Engine Bolts | 11 ft-lbs |
| Exhaust Manifold to Cylinder Head Bolts | 15 ft-lbs |
| Engine Oil Pan Drain Plug | 18.4 ft-lbs |
| Lug Nuts | 88 ft-lbs |
| Cylinder Firing Order | 1-5-3-6-2-4 |
| Spark Plug Manufacturer | BMW |
| Refrigerant | R134a |
| Oil Group | PAG |
| Standard BCI Group Number | 48 |
| Standard BCI Cranking Performance | 570 cca |
| Optional BCI Group Number | 94R |
| Optional BCI Cranking Performance | 640 cca |
| Pressure Test | 21.7 psi |
| Radiator Cap Pressure Relief | 19-23 psi |
| Thermostat Opening Temperature | 190 °F |
| Engine Compression | 203-232 PSI. 29 maximum variation. psi |
| Brake Application | WITH 11.81 inch ROTOR / WITH FN3 |
| Torque to Knuckle | 48 ft-lbs / 81 ft-lbs |
| Minimum Pad Thickness | Front: 0.145; Rear: 0.145 pads |
| Brake Application | WITH 11.81 inch ROTOR / WITH FN3 |
| Rotor Nominal Thickness From | 0.787 in / 0.945 in / 0.866 in / 1.024 in |
| Rotor Nominal Thickness To | 0.787 in / 0.945 in / 0.866 in / 1.024 in |
| Rotor Discard at or Under | 0.724 in / 0.881 in / 0.803 in / 0.961 in |
| 1 | 15 ft. lbs., Step 2: 137 | 15 ft. lbs |
Prep Do not reuse old bolts
| 1 | 22.0 ft. lbs. | 22 ft. lbs |
| 2 | 90 degrees | 90 degrees |
| 3 | Bolts 1-10 90 degrees | 90 degrees |
| 4 | 45 degrees | 45 degrees |
| 1 | 15 ft. lbs., Step 2: 70 | 15 ft. lbs |
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the spark plugs every 60,000 mi.
| Every 60,000 mi | Spark Plugs (replace) |
| Every 100,000 mi | Transmission Assembly (drain & refill) |
| At 150,000 mi | Oxygen Sensor (replace) |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Owner complaints about the 2010 BMW 135I Convertible lead in one area — the air bags, 12 of 45 reports (27%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 2 of the reports describe a crash and 2 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 45 complaints on record, top 8 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 174 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| B611026 | 2026-04-23 | Electrical System | While performing a 12-Volt battery jump start, disconnect, or replacement, Vehicle test… |
| B012016 | 2025-03-13 | Electrical System | The Footwell Module (FRM) limited warranty for defects in materials and / or workmanship… |
| B012016 | 2025-02-20 | Electrical System | The Footwell Module (FRM) limited warranty for defects in materials and / or workmanship… |
| B068824 | 2024-12-18 | Unknown Or Other | Screw Cap Return |
| B068624 | 2024-12-04 | Unknown Or Other | Socket Housing Return |
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.
6.9 qt of 0W-30, 0W-40, 5W-30, 5W-40 OIL MEETING BMW SPECIFICATION LL01, per the factory manual.
NHTSA lists 10 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 17 city / 26 highway / 20 combined mpg.