Engine Codes:
M30B35 (3.5L Inline-6), M60B40 (4.0L V8 - introduced later in the E32 lifecycle, may not be in a 1988-specific manual, but the manual likely covers the M30 prominently)
Transmission Codes:
Getrag 265 (manual), ZF 4HP22 (automatic)
Segment:
Full-size luxury sedan
Target Audience:
Discerning luxury car buyers seeking performance, comfort, and advanced engineering of the era.
Key Competitors:
Mercedes-Benz S-Class (W126/W140), Jaguar XJ, Lexus LS 400 (later E32 life).
Design Philosophy:
Driver-oriented luxury, advanced technology for its time, refined driving dynamics.
Technological Advancements:
Early adoption of ABS, traction control (ASC), Servotronic power steering, onboard computer (Check Control), advanced engine management (Motronic).
Primary Coverage:
Full Service, Repair, Rebuild, Refurbish, Restoration
Secondary Coverage:
Maintenance, Diagnostics, Troubleshooting, Electrical Schematics, Component Overhaul
Estimated Page Count:
Extensive, likely exceeding 1500 pages considering the complexity of the E32 platform and its systems.
Type:
Factory Service Manual / Repair Manual
Language:
English (typical for this era's primary manuals, but variations exist)
Format:
Digital (PDF) - implied by modern sales, potentially also available in print.
Powertrain:
Engine mechanical (M30B35, potentially M60 V8), fuel injection (Motronic), ignition, cooling, exhaust, transmission (manual & automatic), drivetrain, differential.
Chassis:
Suspension (front & rear), steering (including Servotronic), brakes (ABS, vented discs), wheels and tires, chassis components.
Electrical:
Comprehensive wiring diagrams, ECU diagnostics, lighting, instrumentation, power windows, central locking, climate control electronics, onboard computer (check control).
Body:
Body construction, exterior trim, interior trim, doors, windows, locks, climate control systems (HVAC), safety systems (SRS - likely optional and basic for 1988).
Maintenance:
Scheduled maintenance intervals, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, lubrication, checks.
Repair Rebuild:
Engine disassembly and assembly, transmission overhaul, brake caliper rebuild, suspension component replacement, electrical component repair, body panel repair.
Diagnostics Troubleshooting:
Systematic diagnostic procedures, fault code interpretation (if applicable to the era's systems), component testing, common problem diagnosis.
Depth:
Expert Level - Covers everything from routine maintenance to full engine and transmission rebuilds, including detailed diagnostic flowcharts and specifications for component torquing and clearances.
Searchability:
Searchable text for efficient information retrieval (typical for well-produced digital manuals).
Resolution:
High resolution, suitable for printing key pages or the entire manual.
Physical Binding:
Perfect binding or spiral bound (if physical copy). Digital format assumes no physical binding.
Physical Paper:
Heavy-duty paper stock, designed for workshop environments (if physical copy).
Configuration:
Inline-6 (Straight-6)
Displacement:
3.430 cc (3.4 Liters)
Bore X Stroke:
92.0 mm x 86.0 mm
Valve Train:
SOHC (Single Overhead Camshaft), 2 valves per cylinder
Horsepower:
Approx. 208 hp (155 kW) @ 5700 rpm
Torque:
Approx. 224 lb-ft (304 Nm) @ 4000 rpm
Induction:
Bosch Motronic fuel injection and ignition system (e.g., Motronic ML-1.3)
Fuel Type:
Unleaded gasoline (Premium 91+ octane recommended)
Transmission Type:
ZF 4HP22 4-speed automatic
Transmission Type:
Getrag 265 5-speed manual (less common in North American market for E32)
Automatic Features:
Sport/Economy modes (ECO/SPORT selector), torque converter lock-up
Automatic Transmission Fluid:
Dexron III (or equivalent specified by BMW for the ZF 4HP22 transmission). Check manual for exact BMW fluid part number.
Automatic Transmission Capacity:
Approx. 8-10 liters (check manual for exact capacity including torque converter).
Length:
Approx. 5024 mm (197.8 inches)
Width:
Approx. 1800 mm (70.9 inches)
Height:
Approx. 1400 mm (55.1 inches)
Wheelbase:
Approx. 2833 mm (111.5 inches)
Curb Weight:
Approx. 1700-1800 kg (3750-3970 lbs), depending on options and engine.
Trunk Volume:
Approximately 500 liters (17.6 cubic feet).
Crash Test Data:
Limited official ratings by modern standards. Focus on the structural integrity and passive safety features of the era.
Anti Lock Brakes:
Standard (ABS)
Traction Control:
Optional (ASC - Automatic Stability Control)
Airbags:
Driver airbag optional, passenger airbag not generally available on 1988 models.
Seat Belts:
3-point inertia-reel seatbelts front and rear.
Audio System:
BMW Bavaria C Business RDS or Professional RDS radio/cassette player. Optional CD changer preparation.
Cruise Control:
Standard or optional, depending on trim level.
Parking Assistance:
Rear park distance control was a rare option; not standard.
Phone Integration:
Pre-wiring for cellular telephones was sometimes available as an option.
Oil Change Interval:
Typically every 7,500-10,000 miles (12,000-16,000 km) or 1 year, depending on driving conditions. Consult manual for specific recommendations.
Transmission Fluid Change:
Recommended every 30,000-60,000 miles (48,000-96,000 km) for automatic transmissions. Manual transmissions may have longer intervals or 'lifetime' fill, but periodic checks are advised.
Engine Oil Type:
API SJ or higher, SAE 15W-40 or 10W-40 (check manual for specific BMW LL-xxx approvals or viscosity recommendations based on climate).
Coolant Type:
BMW Blue Ethylene Glycol based coolant (or equivalent approved antifreeze).
Common Problems:
Headliner sagging, cooling system leaks (heater control valve, hoses), electronic control unit (ECU) issues, ABS sensor failures, window regulator failures, fuel pump issues, vacuum leaks.
Preventative Maintenance:
Regular inspection of hoses and rubber components, timely replacement of coolant and brake fluid, ensuring all electronics are functioning correctly.
Bmw Philosophy:
Bayerische Motoren Werke AG is renowned for its 'Ultimate Driving Machine' ethos, emphasizing performance, engineering, and luxury.
E32 Introduction:
The E32 generation replaced the E23 7 Series and was produced from 1986 to 1994. The 1988 model represents an early production variant.
E32 Key Innovations:
Introduced significant advancements in electronics, safety, and comfort, setting a benchmark for luxury sedans.
Production Period:
1986-1994
Manufacturing Location:
Dingolfing, Germany
