Segment:
High-performance compact executive sport sedan/wagon
Target Audience:
Enthusiast drivers, DIY mechanics, professional technicians
Key Competitors:
Audi S4, Mercedes-Benz C-Class AMG, Subaru WRX STI (performance segment)
Performance Focus:
High-revving naturally aspirated engine, track-capable dynamics, premium build quality
Practicality:
Wagon body style offers increased cargo space and practicality compared to sedan variants
Engine:
Complete overhaul, diagnostics, cooling system, lubrication, fuel injection, ignition, emissions control, engine management (DME)
Transmission:
Manual and SMG (Sequential Manual Gearbox) removal, installation, repair, diagnostics, clutch system, driveshafts, differential
Brakes:
Hydraulic system, ABS, DSC (Dynamic Stability Control), brake pads, rotors, calipers, parking brake, bleeding procedures
Suspension:
Front and rear suspension components, struts, shocks, control arms, bushings, wheel alignment specifications
Steering:
Power steering system, steering rack, tie rods, alignment
Electrical:
Battery, alternator, starter, lighting system, fuses, relays, wiring diagrams, diagnostic connectors (OBD-II)
Bodywork:
Exterior panels, doors, windows, sunroof, convertible top (if applicable), interior trim, body sealing
HVAC:
Heating, ventilation, and air conditioning system diagnostics, refrigerant handling, component replacement
Infotainment:
Radio, navigation system (if equipped), speaker system, antenna, diagnostic checks
Safety Systems:
Airbags, seatbelts, ABS, DSC, traction control
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection/replacement
Troubleshooting:
Diagnostic procedures, fault code interpretation, symptom-based troubleshooting guides
Repair:
Component removal and installation, rebuild procedures for major assemblies
Diagnostics:
Detailed explanations of diagnostic tools and techniques specific to the E46 M3
Specifications:
Torque specifications for all fasteners, fluid capacities, electrical resistance values
Calibration:
Wheel speed sensor calibration, steering angle sensor calibration (if applicable)
Wiring Diagrams:
Comprehensive, system-specific electrical wiring diagrams
Depth:
Comprehensive (from basic maintenance to full engine/transmission rebuilds)
Detail Level:
Step-by-step instructions with supporting diagrams and illustrations
Configuration:
Inline 6-cylinder, naturally aspirated
Displacement:
3.2 Liters (3246 cc)
Valvetrain:
DOHC, 24 valves, Double VANOS (Variable Valve Timing)
Bore X Stroke:
87.0 mm x 91.0 mm
Compression Ratio:
11.5:1
Horsepower:
333 hp @ 7900 rpm
Torque:
262 lb-ft (355 Nm) @ 4900 rpm
Induction:
Individual throttle bodies (ITBs)
Fuel Type:
Premium Unleaded (91 octane or higher recommended)
Fuel Delivery:
Electronic Multi-Point Fuel Injection (MPI)
Length:
approx. 4488 mm (176.7 in)
Width:
approx. 1780 mm (70.1 in)
Height:
approx. 1372 mm (54.0 in)
Wheelbase:
approx. 2760 mm (108.7 in)
Front Track:
approx. 1471 mm (57.9 in)
Rear Track:
approx. 1495 mm (58.9 in)
Cargo Volume:
approx. 400-1300 Liters (with rear seats folded)
Curb Weight:
approx. 1570 kg (3461 lbs) for manual transmission
Gross Vehicle Weight Rating:
N/A (Typically not specified in detail for performance models)
NHTSA Front Impact:
5-star (for E46 sedan, wagon likely similar)
IIHS Side Impact:
Good (for E46 sedan, wagon likely similar)
ABS:
Yes (Anti-lock Braking System)
Dsc:
Yes (Dynamic Stability Control, includes Traction Control)
Cv Control:
Yes (Cornering Brake Control)
Airbags:
Frontal, front side airbags
Seatbelts:
3-point front and rear, pretensioners, force limiters
Body Structure:
Reinforced chassis with crumple zones
Oil Change Interval:
Typically every 7,500-10,000 miles (12,000-16,000 km) or as indicated by the vehicle's Condition Based Service (CBS) system
Spark Plug Replacement:
Every 60,000 miles (96,000 km) for iridium plugs (refer to manual for exact type and interval)
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles
Brake Fluid Flush:
Every 2 years
Engine Oil Type:
SAE 10W-60 Synthetic (BMW recommends Castrol TWS Motorsport SAE 10W-60 for S54 engine)
Engine Oil Capacity:
7.0 Liters (7.4 US quarts) with filter change
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based)
Transmission Fluid Manual:
SAE 75W-90 Synthetic Gear Oil (BMW ETL-75/80 or equivalent)
Differential Fluid:
SAE 75W-140 Synthetic Gear Oil (LS - Limited Slip compatible)
Brake Fluid:
DOT 4 Synthetic Brake Fluid
Rod Bearings:
Crucial maintenance item due to potential wear on the S54 engine. Manual will detail inspection and replacement procedures.
Oil Pump Drive Shaft:
Potential for wear or failure on the S54 engine. Manual will cover inspection.
Vanos System:
Potential for solenoid wear or failure, leading to performance issues. Manual provides diagnostic steps.
Subframe Mounts:
Reinforcement often recommended due to stress on the chassis. Manual will detail inspection.
Cooling System:
Plastic expansion tank can become brittle; hoses may degrade. Manual details replacements.
Bmw Motorsport:
BMW M GmbH renowned for performance tuning and motorsports success
E46 Generation:
Fourth generation of the BMW 3 Series, known for its improved chassis dynamics and refinement over the E36
M3 Development:
The E46 M3 represents a significant leap in performance for the 3 Series, directly benefiting from BMW's motorsport expertise. The S54 engine was developed specifically for this model.
Wagon Variant:
The M3 wagon variant (often referred to colloquially as an 'M3 Touring' though never officially produced by BMW M in this generation) is a rare homologation special or a highly sought-after aftermarket conversion based on the standard E46 wagon chassis, fitted with M3 mechanicals. This manual likely covers the conversion process or is for an official E46 wagon with M3-like enhancements.
Production Period:
E46 generation produced from 1998 to 2006. M3 variant specifically produced from 2000 to 2006.
Car And Driver 10Best:
E46 3 Series (non-M3) frequently appeared on Car and Driver's 10Best lists, indicating overall platform excellence.
Motor Trend Car Of The Year:
E46 3 Series was a contender, though not a winner, showcasing its strong competition.
Driver Enthusiast Ratings:
Consistently praised by automotive journalists and enthusiasts for its driving dynamics, steering feel, and engine performance.
Emissions Compliance:
Certified to meet relevant emissions standards for its production era
