🏷️ Basic Information

Make:

BMW

Model:

M6 (E24)

Engine Code:

S38B35

Generation:

E24 (1st Generation)

Chassis Code:

E24

👋 Introduction

Market Position:

The BMW E24 M6 (often referred to in some markets as the L6 with specific tuning, but the S38 engine denotes the M6) was a high-performance grand tourer, positioning itself at the apex of luxury and sportiness in the 1980s. This ETM targets owners and technicians working on these iconic vehicles.

Competitive Analysis:

Competed with other luxury performance coupes of its era such as the Porsche 911, Mercedes-Benz SEC models, and Aston Martin V8 Vantage. Its electrical systems were complex for the time, making a dedicated ETM essential for maintenance.

Key Features:

Comprehensive coverage of the E24 M6's electrical architecture, detailed wiring diagrams, component location charts, troubleshooting flowcharts, and specific procedures for diagnosing and repairing electrical issues. Instant digital access.

📋 Manual Details

Coverage Areas:

Electrical systems and troubleshooting for the BMW E24 M6 (L6 designation for the standard 6-series, but the ETM is for the M6 variant specified).

Page Count:

Likely 200-400 pages (typical for a comprehensive ETM of this era)

Manual Type:

Electrical Troubleshooting Manual (ETM)

Language:

English

Format:

PDF (Digital Download)

📖 Manual Coverage

Systems Covered:

Engine management electronics, fuel injection system, ignition system, lighting (headlights, taillights, interior), instrumentation and gauges, heating and ventilation controls, power windows, power seats, central locking, mirrors, sound system, ABS (if equipped), diagnostics (basic codes), wiring diagrams, component locations, fuses and relays.

Procedures Included:

Step-by-step troubleshooting guides for common electrical faults, testing procedures for electrical components, interpretation of wiring diagrams, fuse box identification and function, relay testing, diagnostic connector pinouts, voltage drop testing, continuity testing.

Technical Depth:

Advanced diagnostics and repair procedures specifically for the electrical systems of the E24 M6. Covers wiring schematics in detail, component testing, and fault isolation. Suitable for experienced DIY mechanics and professional technicians.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution, suitable for printing crisp diagrams and text.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine:

S38B35

Horsepower:

286 hp @ 6500 rpm (European Spec), 256 hp @ 6000 rpm (US Spec)

Torque:

251 lb-ft @ 4500 rpm (European Spec), 243 lb-ft @ 4500 rpm (US Spec)

Fuel Injection:

Bosch L-Jetronic (later models may have Motronic)

Engine Layout:

Inline 6-cylinder

Displacement:

3.5 Liters (3453 cc)

Compression Ratio:

10.0:1

🔧 Transmission

Standard Transmission:

Getrag 280G 5-speed manual

Optional Transmission:

ZF 4HP22 4-speed automatic (less common on M6, more on L6)

Clutch Type:

Single dry plate, hydraulically actuated

📐 Dimensions

Length:

190.1 inches (4829 mm)

Width:

70.7 inches (1796 mm)

Height:

53.1 inches (1350 mm)

Curb Weight:

Approximately 3,700 - 3,900 lbs (1678 - 1769 kg)

Wheelbase:

103.2 inches (2620 mm)

🛡️ Safety Features

Safety Ratings:

Era-specific, no standardized crash test ratings like modern vehicles. Focus on passive safety features.

Active Features:

Anti-lock Braking System (ABS) - standard on M6, optional on others.

Passive Features:

Three-point seat belts, reinforced safety cage, impact-absorbing steering column.

💡 Technology Features

Infotainment System:

Analog radio, cassette player, optional Hi-Fi sound system.

Driver Assistance:

ABS (Anti-lock Braking System).

Connectivity:

N/A (Pre-digital era connectivity)

Diagnostics Port:

Early OBD-I style diagnostics, potentially through a specific BMW diagnostic connector requiring special tools or knowledge to interface with.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000 - 7,500 miles or annually, whichever comes first (refer to specific ETM for precise intervals).

Tune Up Interval:

Spark plugs: 30,000 - 60,000 miles; Ignition components: as needed based on diagnosis.

Engine Oil Type:

Synthetic SAE 5W-30 or 5W-40 (API SJ or higher)

Coolant Type:

BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) or equivalent.

Brake Fluid Type:

DOT 4

Transmission Fluid Manual:

MTF LT-2 or equivalent (e.g., Red Line MTL)

Transmission Fluid Automatic:

Dexron III or equivalent

Known Issues:

Degradation of wiring insulation (especially around exhaust manifolds), failure of fuel pump relays, intermittent power to various components, issues with the idle control valve, common Bosch fuel injection sensor failures (e.g., MAF, coolant temp sensor).

Maintenance Schedule Detail:

The ETM will detail specific checks and replacements for components like alternators, starters, ECUs, sensors, and control modules at various mileage intervals or fault symptoms.

📚 Vehicle History

Brand Heritage:

BMW's reputation for building driver-focused, sporting luxury cars.

Model Evolution:

The E24 chassis, based on the 6 Series, evolved from the 630CSi and 633CSi. The M6 (or M635CSi) was the high-performance homologation special featuring the potent M88/3 or S38 engine, derived from motorsport.

Production Years:

E24 M6: 1983-1989 (M635CSi in Europe, M6 in North America)

Production Location:

Germany

🏆 Awards & Recognition

Recognitions:

The E24 generation, and particularly the M6/M635CSi, is widely recognized as a modern classic and one of BMW's most iconic performance coupes.