🏷️ Basic Information

Make:

BMW

Model:

6 Series

Chassis Code:

E24

Production Years Covered:

1983-1989

Specific Models Covered:

633CSi, 635CSi, M6 (M635CSi)

👋 Introduction

Target Audience:

BMW E24 owners seeking to perform maintenance, repairs, and diagnostics, from DIY enthusiasts to professional mechanics.

Value Proposition:

Provides authoritative, factory-level repair information, empowering owners to maintain and repair their classic BMWs effectively.

Comparison To Alternatives:

Offers a level of detail and accuracy typically found only in official manufacturer service documentation, superior to generic online guides.

Completeness:

Marketed as the COMPLETE official full service repair manual, covering all aspects of the vehicle.

Diagnostic Focus:

Strong emphasis on electrical system diagnostics with integrated wiring diagrams.

📋 Manual Details

Manual Type:

Complete Official Full Service Repair Manual

Language:

English

Format:

PDF

Printability:

Printable without restriction

Delivery Method:

Instant Digital Download

Software Requirements:

Adobe Reader

📖 Manual Coverage

Engine Mechanical:

Detailed repair, overhaul, and tuning procedures for BMW M30 inline-six engines.

Fuel System:

Fuel injection systems (Bosch Motronic), fuel pumps, lines, injectors, and tank servicing.

Ignition System:

Ignition coils, distributors (where applicable), spark plugs, and ignition timing.

Cooling System:

Radiator, water pump, thermostat, hoses, and fan assembly maintenance and repair.

Exhaust System:

Exhaust manifolds, catalytic converters (early models), mufflers, and pipe replacement.

Transmission Manual:

Repair and overhaul of Getrag 5-speed manual transmissions (e.g., 265). Clutch service and replacement.

Transmission Automatic:

Repair and overhaul of ZF automatic transmissions (e.g., 4HP22).

Driveline:

Driveshaft, universal joints, driveshaft center bearing, and differential servicing.

Suspension Front:

MacPherson struts, control arms, ball joints, bushings, and sway bar maintenance and replacement.

Suspension Rear:

Semi-trailing arm suspension, shock absorbers, bushings, and sway bar servicing.

Steering System:

Power steering system, steering rack, tie rods, and steering column repair.

Brake System Front:

Ventilated disc brakes, caliper servicing, pad replacement, and rotor specifications.

Brake System Rear:

Disc brakes, caliper servicing, pad replacement, and rotor specifications.

Electrical System:

Comprehensive coverage of the vehicle's electrical system, including troubleshooting.

Wiring Diagrams:

Detailed, high-quality wiring diagrams for all electrical circuits.

Lighting System:

Headlights, taillights, interior lighting, and auxiliary lighting diagnostics and repair.

Instrumentation Warnings:

Dashboard instruments, warning lights, and sensor diagnostics.

Climate Control:

HVAC system, air conditioning, heater core, blower motor, and controls.

Body And Frame:

Body panels, doors, windows, sunroof, and frame structural information.

Interior Trim:

Seat removal, dashboard disassembly, and interior trim panel servicing.

Audio System:

Factory radio and speaker system diagnosis and repair.

Preventive Maintenance:

Scheduled maintenance tasks, fluid changes, filter replacements, and inspections.

Troubleshooting:

Systematic diagnostic procedures for common and uncommon issues.

Repair Procedures:

Step-by-step instructions for component removal, installation, and repair.

Overhaul Procedures:

Detailed guidance for complete engine, transmission, and differential rebuilds.

Adjustment Procedures:

Valve lash adjustment, ignition timing, and other critical adjustments.

Electrical Diagnostics:

Specific procedures for diagnosing electrical faults using wiring diagrams and test equipment.

Torque Specifications:

Crucial torque values for all fasteners, ensuring proper assembly.

Detail Level:

Comprehensive and in-depth, suitable for professional technicians and experienced DIYers.

Illustration Quality:

Detailed illustrations, drawings, and photographs to guide repairs.

Clarity Of Instructions:

Numbered step-by-step instructions, notes, cautions, and warnings.

Accessibility For Novices:

Designed for ease of use, with clear guidance even for those with limited experience (though mechanic recommendation is advised).

📊 Manual Specifications

File Type:

PDF

Searchability:

Likely text-searchable within PDF reader (dependent on original scan quality).

Output Quality:

High quality, allowing for clear printing of text and diagrams.

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Family:

BMW M30 (Straight-6 SOHC)

633Csi Engine Displacement:

3.2 Liters (3210 cc)

635Csi Engine Displacement:

3.5 Liters (3430 cc)

M635Csi Engine Displacement:

3.5 Liters (3453 cc) - higher compression, performance cams

633Csi Horsepower Approx:

197 hp @ 5500 rpm

635Csi Horsepower Approx:

218 hp @ 5200 rpm (Euro Spec)

M635Csi Horsepower Approx:

286 hp @ 6500 rpm (Euro Spec)

635Csi Us Horsepower Approx:

182 hp @ 5000 rpm (due to emissions equipment)

M6 Us Horsepower Approx:

256 hp @ 6000 rpm (US Spec)

Injection System:

Bosch Motronic EFI (various versions: L-Jetronic, Motronic 1.0, 1.1, 1.3)

🔧 Transmission

Transmission Type Early:

4-speed Automatic (ZF 4HP22)

Transmission Type Later:

5-speed Manual (Getrag 265)

Optional Transmission:

5-speed Manual (Getrag 265) was often standard on some models/markets, automatic was optional.

Clutch Type:

Single dry plate, hydraulic actuation (Manual Transmission)

📐 Dimensions

Wheelbase:

Approx. 2,626 mm (103.4 inches)

Length:

Approx. 4,750 - 4,760 mm (187.0 - 187.4 inches)

Width:

Approx. 1,775 mm (69.9 inches)

Height:

Approx. 1,380 mm (54.3 inches)

Curb Weight Approx:

1,550 - 1,700 kg (3,417 - 3,748 lbs) depending on model and options.

Wheel Bolt Pattern:

5x120mm

Wheel Size Typical:

15-inch or 16-inch alloy wheels

Tire Size Typical:

205/70VR14 to 225/50VR16 (varies by model and year)

🛡️ Safety Features

Crash Test Data:

Not widely available in modern standardized formats for vehicles of this era. Focus on inherent structural integrity and passive safety features of the time.

ABS:

Optional on some models, standard on later M6/M635CSi.

Limited Slip Differential:

Optional on 635CSi, standard on M6/M635CSi.

Seatbelts:

3-point inertia reel seatbelts front and rear.

Headrests:

Adjustable front and rear headrests.

Crumple Zones:

Designed with front and rear crumple zones for impact absorption.

💡 Technology Features

Audio System:

Factory fitted AM/FM/Cassette stereo systems, often with multi-speaker configurations. Options for premium sound systems.

Climate Control Tech:

Manual or optional automatic climate control systems.

Cruise Control:

Available as an option on most models.

Power Steering:

Standard power-assisted steering.

Connectivity Features:

Basic by modern standards, primarily focused on vehicle systems. No integrated Bluetooth or USB.

🔧 Maintenance

Oil Change Interval:

Typically every 7,500 - 10,000 miles or 12 months, consult manual for specific recommendations based on driving conditions.

Spark Plug Replacement:

Check and replace at recommended intervals (e.g., 30,000 - 60,000 miles, depending on plug type).

Timing Belt Chain Check:

M30 engines use a timing chain, requiring inspection for wear and tensioner integrity at major service intervals.

Engine Oil Specification:

API SG or higher, SAE 15W-40 or 20W-50 recommended for older engines. Consult manual for specific viscosity and BMW approval.

Coolant Specification:

BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) or equivalent, mixed 50/50 with distilled water.

Brake Fluid Specification:

DOT 4 recommended.

Transmission Fluid Manual:

API GL-4 or GL-5 gear oil, SAE 75W-90 or 80W-90 recommended (specifics vary).

Transmission Fluid Automatic:

Dexron III or equivalent (ZF HP-22 Fluid specification). Consult manual for exact BMW specification.

Common E24 Issues:

Rust (wheel arches, sills, sunroof panel), fuel distributor issues (Bosch K-Jetronic), vacuum leaks, window regulator failures, rear trailing arm bushing wear, cooling system component degradation (hoses, plastic parts).

M635Csi Specific Issues:

More complex Motronic management, potential for early electronic component failure.

📚 Vehicle History

Brand Identity:

BMW is renowned for engineering sporty luxury vehicles with a focus on driving dynamics and performance, often referred to as the 'Ultimate Driving Machine'.

E24 Introduction:

The E24 6 Series was introduced in 1976 as the successor to the E9 coupe, based on the E12 5 Series platform, evolving to the E23 7 Series platform for the later E24 models.

E24 Design:

Characterized by Paul Bracq's iconic shark-nose styling, a hallmark of BMW design during that era.

E24 Variants:

The lineup evolved from the 630CSi and 633CSi to the more powerful 635CSi, culminating in the high-performance M635CSi (M6 in North America), featuring a detuned M1 engine.

Production Period:

1976-1989 (this manual covers the later E24 generation, approximately 1983-1989).

Manufacturing Location:

Germany

🏆 Awards & Recognition

Automotive Press Accolades:

The E24 6 Series was widely praised by automotive journalists for its performance, handling, and luxury, frequently featuring in 'best GT' lists of its era.

Collectibility Status:

Considered a desirable modern classic, particularly well-maintained examples and M6 variants, appreciated for its timeless design and driving experience.

Manual Endorsement:

Stated as the official factory service manual, implying adherence to BMW's technical standards for repair information.