Segment:
High-performance luxury convertible sports coupe.
Target Audience:
Enthusiasts, DIY mechanics, professional automotive technicians specializing in BMW vehicles.
Competitors:
Porsche 911 Carrera Cabriolet, Mercedes-Benz SLK/SL, Audi S4 Cabriolet.
Model Highlights:
Naturally aspirated S54 3.2L inline-six engine, iconic E46 chassis, available SMG-II automated manual transmission, exceptional handling and driving dynamics.
Utility:
Empowers owners and technicians with the detailed knowledge required for accurate diagnosis, efficient repair, and proper maintenance of the E46 M3 Convertible.
Applicable Models:
BMW 3 Series M3 Convertible (E46)
Applicable Years:
1999, 2000, 2001, 2002, 2003, 2004, 2005
Estimated Page Count:
Varies by specific publication, typically 1000+ pages for comprehensive digital/print manuals.
Type:
Factory Authorized Service Manual / Repair Manual
Language:
English (primarily)
Format:
Digital (PDF) and/or Printed Book
Powertrain:
Engine (S54B32), Cooling System, Fuel System, Exhaust System, Drivetrain, Transmission (SMG, Manual), Differential, Axles.
Chassis And Body:
Suspension (Front & Rear), Steering System, Brakes (ABS, DSC), Body Panels, Convertible Roof Mechanism, Chassis Components, Frame.
Electrical And Electronics:
Engine Management (DME), Ignition System, Lighting System, Instrument Cluster, HVAC Controls, Audio System, Convertible Top Control Module, Body Control Module (BCM), Wiring Diagrams, Diagnostic Trouble Codes (DTCs).
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, brake pad/rotor replacement, cabin air filter replacement.
Repair:
Complete engine overhaul, transmission repair/rebuild, suspension component replacement, brake system bleeding and component replacement, convertible top actuator/hose repair, electrical diagnostics and component replacement, bodywork repairs.
Diagnostics And Troubleshooting:
Step-by-step diagnostic procedures for common and uncommon issues, fault code interpretation, symptom-based troubleshooting guides.
Depth:
Comprehensive, covering everything from basic fluid checks to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.
Digital Format:
PDF (typically searchable text, high-resolution images)
Print Quality:
High-resolution diagrams and text suitable for professional printing.
Binding:
For printed versions: Spiral-bound or perfect-bound for durability and ease of use.
Paper Type:
For printed versions: Heavy-duty, gloss or matte paper stock to withstand workshop use.
NHTSA Rating:
Not specifically rated for this performance variant, but the E46 platform generally performed well in its class.
ABS:
Standard Anti-lock Braking System (ABS).
Dsc:
Standard Dynamic Stability Control (DSC) with M Dynamic Mode.
Traction Control:
Standard Automatic Stability Control + Traction (ASC+T) or Dynamic Traction Control (DTC) with DSC.
Airbags:
Front dual-stage airbags, front side-impact airbags.
Rollover Protection:
Pop-up rollover protection bars integrated behind the rear headrests.
Seatbelts:
Three-point inertia-reel seatbelts with pretensioners and force limiters.
Head Unit:
BMW Professional CD, optional navigation system (MKIV).
Audio System:
Harman Kardon premium sound system available as an option.
Cruise Control:
Standard cruise control system.
Phone Integration:
Optional Bluetooth hands-free system.
Instrument Cluster:
M-specific instrument cluster with oil temperature gauge and M logo.
Oil Change:
Typically every 7,500 - 10,000 miles or 12 months, based on BMW's Condition Based Service (CBS) system.
Brakes:
Inspect brake pads and rotors every 15,000 miles; replace as needed based on wear.
Spark Plugs:
Replace at 60,000 miles (typically).
Coolant:
Flush and replace coolant every 2-3 years or 30,000-50,000 miles.
Engine Oil:
BMW Longlife-01 (LL-01) approved synthetic oil, 5W-30 or 5W-40 viscosity recommended.
Coolant:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) or equivalent.
Brake Fluid:
DOT 4 or DOT 4 PLUS.
Transmission Fluid Manual:
Pentosin MTF LT-2 (or equivalent MTF).
Transmission Fluid Smg:
Pentosin CHF 11S (Hydraulic Fluid for SMG Pump).
Rod Bearings:
S54 engine is prone to bearing wear; regular oil changes and careful driving are crucial. Inspection and potential replacement are recommended preventative measures.
Subframe Mounts:
Cracking or failure of the rear subframe mounting points is a known issue, especially on earlier E46 models. Reinforcement kits are available.
Vanos:
The VANOS (Variable Valve Timing) system can develop leaks or actuator issues, impacting performance. Rebuild kits are available.
Convertible Top Hydraulics:
Hydraulic hoses can degrade and leak, leading to convertible top malfunctions. The pump can also fail.
Brand Legacy:
BMW has a long and storied history of producing high-performance, driver-focused vehicles, particularly with its M division.
E46 M3 Introduction:
The E46 M3 was introduced in 2000 as the successor to the highly acclaimed E36 M3.
Convertible Variant:
The Convertible version offered the M3's performance in an open-top format, launched shortly after the Coupe.
Production Period:
2000-2006 for the E46 M3 generation, with the Convertible produced from 2001-2006.
Manufacturing Location:
Regensburg, Germany
Car And Driver 10Best:
The E46 3 Series platform, on which the M3 is based, was a multiple recipient of Car and Driver's 10Best awards.
Automotive Journalism:
Consistently praised by automotive journalists for its driving dynamics, engine performance, and overall appeal as a sports convertible.
