Vehicle Segment:
Luxury Grand Tourer
Target Audience:
Enthusiasts and owners seeking to maintain or repair their E24 633CSi.
Competitors Era:
Mercedes-Benz SLC/SL, Jaguar XJ-S, Porsche 928
Vehicle Highlights:
Iconic 'Bangle-butt' design, powerful inline-six engine, refined handling, luxurious interior.
Manual Benefit 1:
Empowers DIY repairs and diagnostics, saving significant labor costs.
Manual Benefit 2:
Provides clear, step-by-step visual guidance for complex electrical systems.
Manual Benefit 3:
Instant download eliminates shipping delays and costs.
Primary Focus:
Electrical System Wiring Diagrams
Secondary Coverage:
Component Location Diagrams, Troubleshooting
Estimated Page Count:
Variable (typically 50-150 for wiring specific manuals)
Type:
Wiring Diagram Manual / Electrical Troubleshooting Manual
Powertrain Electrical:
Engine control, fuel injection (L-Jetronic), ignition system, starter, alternator
Chassis Electrical:
Lighting (headlights, taillights, interior), horn, wipers, washers, power windows, central locking
Comfort Convenience:
HVAC controls, radio/audio system, power mirrors, seat heating (if equipped)
Instrumentation Gauges:
Speedometer, tachometer, fuel gauge, temperature gauge, warning lights
Braking System Electrical:
ABS warning light, brake fluid level sensor (if applicable)
Diagnostics Troubleshooting:
Diagnostic connector pinouts, troubleshooting flowcharts for common electrical faults
Basic Troubleshooting:
Identifying faulty circuits, checking fuses and relays
Component Testing:
Voltage and continuity testing of electrical components
Wiring Repair:
Guidance on splicing, soldering, and insulating wire repairs
Connector Identification:
Diagrams of various electrical connectors and their pin assignments
Depth:
Comprehensive electrical system coverage, suitable for diagnosis and repair.
Engine Type:
Naturally Aspirated, Inline 6-Cylinder
Displacement:
3.2 Liters (3210 cc)
Bore X Stroke:
92.0 mm x 78.8 mm
Horsepower:
189 hp @ 5500 rpm (approx.)
Torque:
214 lb-ft @ 3500 rpm (approx.)
Injection System:
Bosch L-Jetronic Fuel Injection
Fuel Type:
Unleaded Gasoline (Premium)
Ignition System:
Electronic Ignition with Knock Control
Transmission Type:
4-Speed Automatic (ZF 4HP22)
Transmission Type Optional:
5-Speed Manual (Getrag 265)
Automatic Features:
Sport mode selector
Automatic Fluid Type:
Dexron II (or equivalent)
Manual Fluid Type:
BMW Premium Synthetic Gear Oil (e.g., SAE 75W-90)
Safety Certification Era:
ERA: Pre-modern crash testing standards
ABS:
Available (late models/optional), consult specific vehicle
Seatbelts:
3-point front, 2-point rear (later models may have 3-point rear)
Crumple Zones:
Designed front and rear crumple zones
Steering Column:
Collapsible steering column
Audio System:
Period-appropriate BMW Bavaria C or similar cassette/radio system.
Speakers:
Often 4 or 6 speaker configurations, quality varies by original option.
Cruise Control:
Standard on most models.
ABS:
Optional on earlier models, standard on later production runs.
Connectivity Features:
None in the modern sense; analog systems.
Oil Change Interval:
Every 5,000-7,500 miles or annually, whichever comes first (check manual for specific recommendation).
Filter Replacement:
Oil filter with every oil change, air filter every 15,000-30,000 miles, fuel filter every 30,000-60,000 miles.
Spark Plug Replacement:
Every 30,000 miles (typical for the era).
Engine Oil Type:
API SG/SH, SAE 20W-50 or 15W-40 (verify with owners manual for specific climate/usage).
Coolant Type:
BMW Blue Coolant or equivalent (50/50 mix with distilled water).
Power Steering Fluid:
ATF Dexron II (or equivalent)
Common Electrical:
Degrading wire insulation (especially in engine bay), failing relays, headlight switch issues, intermittent instrument cluster problems.
Common Mechanical:
Head gasket leaks, oil pan gasket leaks, cooling system component failures (radiator, hoses), fuel pump failure, seized AC compressors.
Common Body:
Rust in wheel arches, sills, sunroof drains, and rear valence.
Bmw Legacy:
Renowned for engineering excellence, performance, and luxury.
E24 Introduction:
Introduced in 1976 as a successor to the E9 Coupe, based on the E12 5 Series platform.
E24 Facelift:
Received a significant facelift ('high-line') for 1982, including a revised front end and improved aerodynamics, forming the basis for the 1983-1989 models.
633Csi Positioning:
Positioned as the entry-level six-cylinder model within the E24 lineup for many markets, offering a balance of performance and comfort.
Production Period:
1976-1989
Manufacturing Location:
Dingolfing, Germany
Automotive Press Recognition:
Consistently praised for its driving dynamics, styling, and build quality by automotive publications of its era.
Collectible Status:
Considered a modern classic and desirable collector's item among BMW enthusiasts.
