Positioning:
The BMW M3 (E46) is a high-performance variant of the 3 Series, celebrated for its exceptional handling, powerful engine, and driver-focused experience, positioned as a premium sports coupe/convertible.
Competitors:
Porsche 911 (996), Mercedes-Benz C32 AMG, Audi RS4 (B5/B7).
Performance Focus:
The E46 M3 is renowned for its naturally aspirated S54 inline-six engine, balanced chassis, and engaging driving dynamics.
Manual Utility:
This manual is indispensable for owners and technicians seeking to maintain, diagnose, and repair the complex systems of the E46 M3 to factory standards.
Primary Coverage:
Complete service and repair information for the 2004 BMW M3 (E46)
Secondary Coverage:
Diagnostics, troubleshooting, maintenance schedules, specifications
Type:
Factory Service Manual (FSM) / Repair Manual
Format:
Digital Download (PDF)
Powertrain:
Engine (S54B32), cooling system, fuel system, exhaust system, clutch, transmission (SMG/Manual), differential, driveshafts
Chassis:
Suspension (front/rear), steering system, braking system (including DSC), wheel and tire specifications
Electrical:
Battery, charging system, ignition system, lighting, instrumentation, power accessories, DME (Digital Motor Electronics), wiring diagrams
Body:
Body panels, doors, windows, convertible top (if applicable), interior trim, HVAC system
Maintenance:
Oil changes, filter replacements, spark plug service, fluid checks and changes, belt inspections
Repair:
Engine rebuilds, transmission overhaul, brake caliper replacement, suspension component replacement, electrical component diagnosis and repair
Diagnostics:
Fault code interpretation, diagnostic procedures for all major systems, troubleshooting flowcharts
Troubleshooting:
Systematic troubleshooting for common and uncommon issues, component testing procedures
Depth:
Comprehensive; covers basic maintenance to complete engine and transmission overhauls, advanced electrical diagnostics, and bodywork repair.
Diagnostic Tools:
Mentions procedures for use with BMW's official diagnostic tools (e.g., DIS, ISTA/D) and general OBD-II scanning.
File Type:
PDF (Portable Document Format)
Searchability:
Likely text-searchable (depending on original scan quality)
Printability:
Designed for printing, allowing users to print specific sections or the entire manual.
Binding Recommendation:
Spiral binding recommended for ease of use while working in the shop.
Recommended Paper:
High-quality, durable paper for shop use.
NHTSA Front Impact:
4/5 Stars (Driver/Passenger)
Traction Control:
Dynamic Stability Control (DSC)
Braking:
Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD)
Airbags:
Front dual-stage airbags, front side-impact airbags
Seat Belts:
3-point inertia-reel seatbelts with front force limiters
Head Unit:
BMW Business CD, BMW Professional CD, optional navigation system
Audio System:
Standard 6-speaker system, optional Harman Kardon premium audio
Stability Control:
Dynamic Stability Control (DSC)
Cruise Control:
Standard cruise control system
Bluetooth:
Optional Bluetooth integration for hands-free calling (often requiring a specific phone cradle)
Oil Change Interval Bmw Recommendation:
Variable, based on 'Condition Based Service' (CBS) system, typically around 15,000 miles or annually.
Spark Plug Replacement Interval:
Approximately 60,000 miles
Coolant Flush Interval:
Every 2-3 years or 30,000 miles
Engine Oil Type:
BMW Longlife-01 (LL-01) Synthetic, SAE 0W-40 or 5W-30
Engine Oil Capacity:
6.9 US quarts (6.5 liters)
Coolant Type:
BMW Blue Antifreeze/Coolant (G48)
Brake Fluid Type:
DOT 4 (low viscosity recommended)
Transmission Fluid Manual:
SAE 75W-90 Synthetic Gear Oil (e.g., Castrol TWS) or BMW recommended equivalent
Transmission Fluid Smg:
Pentosin CHF 11S (Hydraulic Fluid)
Subframe Mounts:
Cracking or separation of rear subframe mounting points
Rod Bearings:
Potential wear of connecting rod bearings due to high-performance operation (especially with aggressive driving)
Vanos:
Potential issues with the Variable Valve Timing (VANOS) system, including solenoids and seals
Smg Pump:
SMG hydraulic pump failure or accumulator issues
Car And Driver 10Best:
Named to Car and Driver's '10Best' list multiple times.
Motor Trend:
Often praised by automotive publications for its performance and handling characteristics.
Engine Technology:
S54 engine features BMW's Double VANOS (variable camshaft timing) and individual throttle bodies, earning accolades for its responsiveness and high-revving nature.
