Segment:
Full-size Luxury Sedan
Key Competitors 1992:
Mercedes-Benz S-Class (W140), Lexus LS400, Cadillac DeVille
Vehicle Characteristics:
Renowned for its refined ride, sophisticated engineering, spacious interior, and powerful inline-six engine.
Covered Models:
1992 BMW 735iL (all variations)
Estimated Pages:
Extensive (typical for factory-level digital manuals, often exceeding 1000 pages when compiled)
Type:
Official Service and Repair Manual Software
Format:
Digital Software (likely PDF or proprietary application)
Powertrain:
Engine (M30B35), Fuel System, Ignition System, Exhaust System, Cooling System
Drivetrain:
Transmission (Automatic - ZF 4HP22), Driveshafts, Differential, Axles
Chassis:
Suspension (Front & Rear), Steering System, Brakes (Hydraulic, ABS)
Electrical:
Engine Management (DME), Body Electronics, Lighting, Instrumentation, Power Accessories, Battery, Charging System, Audio System
Body:
Body Panels, Doors, Windows, Seats, Interior Trim, HVAC System
Maintenance:
Scheduled Maintenance (Oil Changes, Filter Replacements, Spark Plugs, Fluid Checks), Fluid Capacities, Lubrication Points
Diagnostics:
Troubleshooting Guides, Diagnostic Trouble Codes (DTCs), Symptom-based Diagnosis
Repair:
Component Removal and Installation, Engine Rebuild Procedures, Transmission Overhaul, Suspension Component Replacement, Brake System Repairs, Electrical Component Replacement
Technical Data:
Torque Specifications, Electrical Schematics, Wiring Diagrams, Component Specifications
Depth:
Comprehensive: Covers basic maintenance to full mechanical and electrical system overhauls, including detailed diagnostic procedures.
Transmission Type:
ZF 4HP22 4-Speed Automatic
Transmission Type:
None offered for the 735iL in 1992 in most markets.
Transmission Modes:
Standard (D), Sport (S), Economy (E), Reverse (R), Park (P)
Automatic Transmission Fluid:
ATF Dexron-III or equivalent (Check manual for exact BMW specification)
NHTSA Ratings:
Not readily available for this era, but designed to meet contemporary safety standards.
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Optional, often referred to as ASC (Automatic Stability Control) or ASC+T (with engine control).
Airbags:
Driver's side airbag standard; passenger airbag optional or introduced later in the E32 lifecycle for some models.
Seatbelts:
Three-point inertia-reel seatbelts front and rear.
Body Structure:
Reinforced safety cage, crumple zones.
Audio System:
Premium cassette stereo system, often with Nakamichi or Hi-Fi sound options. CD changer was an optional upgrade.
Climate Control:
Dual-zone automatic climate control (IHKA system for later models/updates).
Cruise Control:
Standard electronic cruise control.
Parking Assistance:
Rear park distance control (PDC) became optional/standard on later E32 models.
Telephone:
Optional factory-installed car phone (primitive by modern standards).
Seat Adjustment:
Electrically adjustable front seats with memory function for driver and passenger.
Sunroof:
Electric glass sunroof standard.
Oil Change Interval:
Typically every 10,000-15,000 miles or 12 months, depending on driving conditions and oil type. Consult manual for precise recommendations.
Spark Plug Replacement:
Around 30,000 miles for original-spec plugs, or as recommended by the manual for updated ignition systems.
Coolant Flush:
Every 2-3 years or 30,000-45,000 miles.
Engine Oil:
SAE 10W-40 or 15W-40, API SG or higher (Check manual for specific BMW approvals like LL-98).
Coolant:
BMW Blue Antifreeze/Coolant (G48) or equivalent, mixed 50/50 with distilled water.
Brake Fluid:
DOT 4 (Check manual for BMW specific DOT rating).
Power Steering Fluid:
Pentosin CHF 11S or equivalent.
Common Problems Engine:
Head gasket leaks, oil leaks (valve cover, oil pan), seized cooling fan clutch, vacuum hose deterioration, ignition coil failure.
Common Problems Electrical:
Corrosion on grounds, failing ABS sensors/module, headlight leveling system issues, instrument cluster problems, door lock actuator failures.
Common Problems Suspension:
Worn control arm bushings, ball joints, strut mounts, rear self-leveling suspension issues (if equipped with hydraulic system).
Common Problems Transmission:
Slipping gears, delayed engagement, leaks from the transmission cooler lines or pan gasket.
Bmw Philosophy:
BMW's reputation for 'The Ultimate Driving Machine' emphasizes performance, luxury, and advanced engineering.
E32 Introduction:
The E32 generation replaced the E23 7 Series and was produced from 1986 to 1994. The 735iL represented the long-wheelbase variant.
E32 Facelift:
A significant facelift occurred for the 1992 model year, bringing updated styling, improved aerodynamics, and technological enhancements, including revisions to the interior and electronics.
Manufacturing Location:
Dingolfing, Germany
