🏷️ Basic Information

Make:

BMW

Model:

6 Series

Model Variant:

633CSi

Year:

1983

Chassis Code:

E24

👋 Introduction

Vehicle Segment:

Luxury Grand Tourer (GT)

Key Competitors:

Mercedes-Benz SEC Coupe (W126), Jaguar XJ-S, Porsche 928

Design Philosophy:

Elegance, performance, and driver-focused engineering characteristic of BMW's philosophy.

Seller Advantage:

FORESTMAN solutions emphasizes customer satisfaction and post-purchase support, differentiating them in a crowded market.

📋 Manual Details

Systems Covered:

Engine, Fuel System, Ignition System, Electrical System, Power Steering, Cooling System, Lubrication System, Exhaust System, Clutch, Transmission (Manual & Automatic), Driveshaft, Differential, Axles, Suspension (Front & Rear), Steering System, Brakes (Front & Rear), Wheels, Tires, Bodywork, Chassis, Interior Trim, Climate Control, Lighting, Instrumentation

Page Count:

Unknown (typically comprehensive for this era, likely 500+ pages)

Manual Type:

Electrical Troubleshooting Service Repair Manual

Language:

English

Format:

Likely Printed Manual or PDF (based on common offerings)

📖 Manual Coverage

Electrical Schematics:

Detailed wiring diagrams, circuit tracing, component location for all electrical systems

Engine Management:

L-Jetronic fuel injection system diagnostics, ignition timing, component testing

Starting Charging:

Starter motor, alternator, battery system troubleshooting

Lighting Coverage:

Headlights, taillights, interior lighting, fog lamps, circuit analysis

Climate Control:

Manual or automatic climate control system troubleshooting (HVAC)

Troubleshooting Methodology:

Systematic diagnostic procedures, common fault identification, step-by-step repair instructions

Component Testing:

Testing procedures for sensors, actuators, relays, fuses, and other electrical components

Wiring Repair:

Guidance on identifying and repairing damaged wiring harnesses and connections

Diagnostic Codes:

While OBD-I was nascent, troubleshooting will focus on logical symptom analysis and electrical measurement

Repair Complexity:

Suitable for professional technicians and advanced DIY enthusiasts

📊 Manual Specifications

File Format Details:

If PDF, expect searchable text, high-resolution diagrams, and bookmark functionality.

Print Quality Details:

If printed, expect clear, legible diagrams and text, durable paper for workshop use.

Binding Type Details:

If printed, likely a robust binding (e.g., spiral-bound, lay-flat) for ease of use in a workshop.

Paper Type Details:

If printed, typically on high-quality, durable paper suitable for automotive environments.

⚙️ Engine Specifications

Engine Type:

Inline 6-cylinder, SOHC

Engine Code:

M30B32

Displacement:

3210 cc (3.2 Liters)

Horsepower:

Approximately 189 hp @ 5500 rpm (European Spec) / 177 hp @ 5500 rpm (US Spec)

Torque:

Approximately 210 lb-ft @ 3500 rpm (European Spec) / 195 lb-ft @ 3500 rpm (US Spec)

Fuel Delivery:

Bosch L-Jetronic Fuel Injection

Fuel Type:

Unleaded Gasoline

Oil Capacity:

6.5 Liters (approx. 6.9 US Quarts) with filter

Coolant Capacity:

Approximately 10.0 Liters (10.6 US Quarts)

🔧 Transmission

Transmission Type:

4-Speed Manual (Getrag 265)

Transmission Type:

3-Speed Automatic (ZF 4HP22)

Manual Gear Ratios:

Typically: 3.71:1 (1st), 2.20:1 (2nd), 1.43:1 (3rd), 1.00:1 (4th), 3.47:1 (Reverse)

Manual Transmission Fluid:

API GL-4, SAE 75W-90 or 80W-90

Automatic Transmission Fluid:

Dexron II (or equivalent)

📐 Dimensions

Length:

4800 mm (189.0 in)

Width:

1795 mm (70.7 in)

Height:

1380 mm (54.3 in)

Wheelbase:

2795 mm (110.0 in)

Curb Weight:

Approx. 1600-1700 kg (3527-3748 lbs) depending on transmission

Gross Vehicle Weight Rating:

Approx. 2000 kg (4409 lbs)

🛡️ Safety Features

Crash Test Data:

Limited publicly available crash test data for this specific year and model from official agencies. BMW's passive safety in this era was advanced for its time.

ABS:

Optional Anti-lock Braking System (ABS) on later E24 models, availability for 1983 may vary by market.

Seatbelts:

Three-point inertia-reel seatbelts (front), lap belts (rear)

Construction:

Reinforced passenger cell, energy-absorbing crumple zones

💡 Technology Features

Audio System:

Typically a premium BMW or aftermarket stereo system with cassette player and AM/FM radio.

Speakers:

Multiple speaker locations throughout the cabin for a refined audio experience.

Cruise Control:

Standard on most models, an electronic cruise control system.

Original Connectivity:

Limited to basic analog systems; no modern Bluetooth or USB connectivity.

🔧 Maintenance

Oil Change Interval:

Typically every 7,500 - 10,000 miles (12,000 - 15,000 km) or annually, depending on driving conditions.

Spark Plug Replacement:

Approximately every 20,000 - 30,000 miles (32,000 - 48,000 km), depending on plug type.

Timing Belt Replacement:

N/A (M30 engine uses a timing chain)

Engine Oil Specification:

API SG/SH, SAE 10W-40 or 10W-30 (check specific owner's manual for exact viscosity)

Coolant Specification:

Ethylene glycol-based antifreeze, BMW approval (e.g., G48 or similar, typically a blue/green coolant)

Brake Fluid Specification:

DOT 3 or DOT 4

Electrical Gremlins:

Common for the era; brittle insulation, corroded connectors, failing relays, and intermittent power to accessories are frequent.

Fuel System Issues:

Aging fuel pumps, injectors, and fuel pressure regulators can cause starting problems or poor running.

Cooling System Reliability:

Original plastic coolant expansion tanks are prone to cracking; metal upgrades are recommended.

Susceptibility To Rust:

Common areas include wheel arches, sills, rocker panels, and rear quarter panels.

📚 Vehicle History

Bmw Legacy:

BMW, established in 1916, has a long history of building performance-oriented vehicles, particularly renowned for its inline-six engines and driving dynamics.

E24 Introduction:

The E24 6 Series was introduced in 1976 as the successor to the E9 coupe, designed by Paul Bracq.

Facelift Impact:

The 1982 model year saw a significant facelift, introducing the larger chrome grille, revised bumpers, and updated interior, which this 1983 model benefits from.

Production Period:

1976-1989

Manufacturing Location:

Dingolfing, Germany

🏆 Awards & Recognition

Automotive Press Praise:

Consistently praised by automotive journalists of the era for its performance, handling, and luxurious interior.

Driver Appeal:

Highly regarded for its driver engagement and 'ultimate driving machine' characteristics.