Factory maintenance schedule OEM · verified
Normal service, condensed from the factory interval matrix.
| At 1,200 mi | Drive Axle Assembly (drain & refill) |
| Every 100,000 mi | Oxygen Sensor (replace) |
Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2003 M3.
The 2003 BMW M3 is a passenger car riding on the E46 platform, equipped with an automatic (S6) transmission, EPA ratings of 15/21/17 mpg, and an engine requiring 5.8 quarts of 15W-40, 10W-40, or 10W-30 API SJ oil. Within the model’s 1990-2025 complaint history, the 2003 model accumulated 141 owner complaints and seven recalls, a total that sits between the 2006 peak of 216 and the 1996 low of one, with air-bag issues ranking as the top concern. That middle positioning indicates a moderate complaint burden rather than an extreme outlier year, suggesting researchers will find a measurable but not exceptional service-record footprint.
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 · 640 CCA battery, OE oil filter 11421741000. 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 | 11421741000 alt 11421719855 |
| Engine air filter | 13721730449 |
| Fuel filter | 13327831089 |
| Spark plug | 12120022902 |
| Battery | 61216924021 alt 61218381749 |
| Front wiper blades | 61617004901 alt 61612458347 |
| Thermostat | 11531318274 alt 11531318402 |
| Cabin air filter | 64319216590 alt 64318370409 |
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S6) |
| Overall length | 176.8 in |
| Overall width | 69.3 in |
| Overall height | 53.9 in |
| Wheelbase | 107.5 in |
| Curb weight | 3781 lb |
| Track (front / rear) | 57.9 / 58.3 in |
| Weight distribution (front / rear) | 52/48 |
| EPA city / highway / combined | 15 / 21 / 17 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 M3 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 |
|---|---|---|---|---|---|
| 2003 | Coupe 3.2L I-6 | 4.80 sec | 13.60 sec | 333 hp | RWD |
| 2003 | Coupe 3.2L I-6 | 5.00 sec | 13.50 sec | 333 hp | RWD |
| 2002 | Coupe 3.2L I-6 | 4.80 sec | 13.40 sec | 333 hp | RWD |
| 2002 | Coupe 3.2L I-6 | 4.90 sec | 13.50 sec | 333 hp | RWD |
| 2002 | Coupe 3.2L I-6 | 5.00 sec | 13.60 sec | 333 hp | RWD |
| 2002 | Convertible 3.2L I-6 | 5.10 sec | 13.70 sec | 333 hp | RWD |
| 2001 | Coupe 3.2L I-6 | 4.50 sec | 13.10 sec | 333 hp | RWD |
| 2001 | Coupe 3.2L I-6 | 4.65 sec | 13.18 sec | 333 hp | RWD |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 5.8 qt of 15W-40 / 10W-40 / 10W-30 API SJ engine oil. Torque lug nuts to 88 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.
| Differential Gear Oil Capacity | 2.5 Pints |
| Engine Oil | 15W-40 · API · 10W-40 · 10W-30 · 5W-30 |
| Engine Oil Capacity | 5.8 qt |
| Power Steering Fluid | ATF |
| Crankshaft Pulley and/or Damper Bolts | 221 ft-lbs |
| Engine Flywheel Bolts | 75 ft-lbs |
| Oil Pump to Cylinder BLock Bolts/Studs | 16 ft-lbs |
| Lug Nuts | 88 ft-lbs |
| Cylinder Firing Order | 1-5-3-6-2-4 |
| Ignition Coil Primary Resistance | 0.8 ohms |
| Spark Plug Manufacturer | BMW |
| Refrigerant | R134a |
| Oil Group | PAG |
| Oil Type | 46 |
| Refrigerant | R134a |
| Oil Group | PAG |
| Oil Type | 46 |
| Standard BCI Group Number | 94R |
| Standard BCI Cranking Performance | 640 cca |
| Pressure Test | 21.7 psi |
| Radiator Cap Pressure Relief | 28-32 psi |
| Thermostat Opening Temperature | 176 °F |
| Engine Compression | 142-156 psi |
| Engine Oil Pressure | 10.5 |
| Torque Caliper to Bracket | 18-22 ft-lbs / 81 ft-lbs |
| Torque to Knuckle | 49 ft-lbs / 81-96 ft-lbs |
| Minimum Pad Thickness | Front: 0.079; Rear: 0.079 in |
| Rotor Discard at or Under | 1.039 in / 0.724 in |
| 1 | 4 ft. lbs., Step 2: 15 ft. lbs., Step 3: 70 | 4 ft. lbs |
| 1 | 25-29 ft. lbs. | 25–29 ft. lbs |
| 2 | 90 degrees | 90 degrees |
| 3 | 90 | |
| 1 | 14.5 ft. lbs., Step 2: 50 | 14.5 ft. lbs |
Normal service, condensed from the factory interval matrix.
| At 1,200 mi | Drive Axle Assembly (drain & refill) |
| Every 100,000 mi | Oxygen Sensor (replace) |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The federal record indicates a shift from relatively low complaint volumes in 2001 (14 complaints) to a marked increase by 2005 (37 complaints) and a significant spike in 2006 (216 complaints). For the 2003 model year, the data specifies 34 Air Bag complaints, 21 Exterior Lighting complaints, and 17 Power Train complaints, alongside 8 crash and 2 fire complaints. This places the 2003 model's specific Air Bag issue count higher than the total complaints recorded for the 2001 model year, yet substantially lower than the 2006 peak. The vehicle sits in an escalating trend arc, preceding the 2005 model year which triggered 4 federal investigations compared to zero listed for 2001. Given the prominent Air Bag and Power Train figures, buyers must prioritize verifying safety recall status over mechanical assumptions not specified in the data. Therefore, while statistically less problematic than the 2006 model, the 2003 year represents a moderate risk purchase that mandates verification of safety recall completion.
All 141 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 83 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| B510819 | 2024-01-16 | Electrical System | The basic conditions for initializing the power windows are not met. |
| B000706 | 2023-11-13 | Equipment | When using the Key Reader to retrieve information from the customerâÃÂÃÂs key, the… |
| B340714 | 2023-10-13 | Service Brakes, Hydraulic | Functional noises (squealing/honking) when braking shortly before the vehicle comes to a… |
| B662419 | 2022-09-01 | Equipment | Vehicle cannot be opened or closed using comfort access, engine start is not possible… |
| B630516 | 2021-06-01 | Exterior Lighting | Moisture is visible on the inside of one or both headlights |
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.
5.8 qt of HIGH PERFORMANCE MINERAL OILS: ABOVE 5 degrees F: 15W-40 API SJ, SL OR SM, -5 degreesF TO 68 degrees F: 10W-40 API SJ, SL OR SM, 5 degreesF TO 50 degrees F: 10W-30 API SJ, SL OR SM, BELOW 50 degrees F: 5W-30 API SJ, SL OR SM, BELOW 32 degrees F:, per the factory manual.
NHTSA lists 7 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 15 city / 21 highway / 17 combined mpg.