🏷️ Basic Information

Make:

BMW

Model:

7 Series

Chassis Code:

E32

Applicable Years:

1988-1994

Engine Variants Covered:

735i, 735iL, 740i, 740iL, 750iL

Product Name:

BMW E32 Series 7 Maintenance Workshop Service Repair Manual

👋 Introduction

Positioning:

The E32 7 Series represented BMW's flagship luxury sedan, competing directly with Mercedes-Benz S-Class and Lexus LS.

Competitors:

Mercedes-Benz W140 S-Class, Lexus LS400, Jaguar XJ.

Innovation:

Introduced advanced features for its time, including electronic throttle control, self-leveling suspension (optional), and integrated safety systems.

Bmw Philosophy:

Embodied BMW's 'Ultimate Driving Machine' philosophy, blending luxury comfort with engaging performance.

📋 Manual Details

Primary Coverage:

Maintenance, Repair, Diagnostics, Troubleshooting, Overhaul, Wiring Diagrams

Key Systems Covered:

Engine Mechanical, Engine Management, Fuel System, Ignition System, Cooling System, Exhaust System, Transmission (Automatic & Manual), Drivetrain, Suspension, Steering, Brakes, Climate Control, Airbag System, Bodywork, Electrical Systems, Wiring Diagrams

Estimated Page Count:

1000+

Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Detailed overhaul procedures for cylinder head, valvetrain, lubrication system, camshaft timing chain, and engine block.

Engine Management:

Comprehensive coverage of fuel injection systems (e.g., Bosch Motronic), ignition system diagnostics, and sensor information.

Transmission:

In-depth repair and maintenance procedures for both automatic (e.g., 4HP22, 5HP series) and manual transmissions.

Electrical Systems:

Extensive wiring diagrams for all vehicle circuits, including engine control, lighting, power accessories, and diagnostics.

Climate Control:

Detailed procedures for HVAC system maintenance, troubleshooting, refrigerant handling, and component replacement.

Safety Systems:

Specific diagnostic and repair procedures for the Airbag system.

Routine Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, and general inspection.

Engine Overhaul:

Step-by-step instructions for cylinder head removal, valve grinding, piston ring replacement, bearing service, and timing chain replacement.

Transmission Rebuild:

Detailed procedures for automatic transmission solenoid testing, valve body overhaul, and manual gearbox component replacement.

Diagnostic Troubleshooting:

Fault finding guides, symptom-based troubleshooting, and diagnostic trouble codes (DTCs) for various systems.

Component Replacement:

Instructions for replacing major components such as radiators, alternators, starters, fuel pumps, and suspension parts.

Depth Of Coverage:

Comprehensive, suitable for professional mechanics and advanced DIY enthusiasts. Covers from basic maintenance to complete engine and transmission rebuilds.

Diagnostic Tools:

May include information on specialized BMW diagnostic tools and procedures applicable to the E32 era.

📊 Manual Specifications

Format:

PDF

Searchability:

Typically searchable text for easy navigation and information retrieval.

Compatibility:

Viewable on any device with a PDF reader (Windows, macOS, Linux, iOS, Android).

Quality:

High resolution, ensuring clear diagrams and text.

Binding:

Not applicable for PDF format; if a printed version were available, it would likely be spiral-bound or perfect-bound.

Paper:

Not applicable for PDF format; if a printed version were available, it would typically be on durable, high-quality paper for workshop use.

⚙️ Engine Specifications

735I/Il:

3.5L M30B35 Inline-6

740I/Il:

4.0L M60B40 V8

750Il:

5.0L M70B50 V12

735I/Il (M30B35):

Approx. 208-211 hp @ 5700 rpm, 224-228 lb-ft @ 4000 rpm

740I/Il (M60B40):

Approx. 282 hp @ 5800 rpm, 295 lb-ft @ 4500 rpm

750Il (M70B50):

Approx. 296 hp @ 5200 rpm, 332 lb-ft @ 3900 rpm

Injection Type:

Electronic Fuel Injection (EFI), specifically Bosch Motronic systems.

Configuration:

SOHC for M30, DOHC for M60 and M70 engines.

🔧 Transmission

735I/Il:

4-speed automatic (ZF 4HP22)

740I/Il:

5-speed automatic (ZF 5HP30)

750Il:

4-speed automatic (ZF 4HP24) - later models may have 5HP30

735I/Il:

5-speed manual (Getrag 260/5) - rare

Sport Mode:

Available on some automatic transmissions for more aggressive shifting.

Automatic Transmission Fluid:

Refer to specific transmission type; commonly Dexron III (or equivalent ATF) for earlier 4-speed automatics, and potentially proprietary fluids for later 5-speeds. Manuals specify BMW ATF J2. Part # 83 22 9 407 867.

📐 Dimensions

Wheelbase:

Standard wheelbase: 111.4 inches (2830 mm). Long wheelbase (iL models): 117.1 inches (2975 mm).

Length:

Standard: ~197 inches (5000 mm). Long: ~203 inches (5160 mm).

Curb Weight:

Varies by model and engine, generally ranging from 3700 lbs (1680 kg) for 735i to over 4300 lbs (1950 kg) for 750iL.

🛡️ Safety Features

Crash Test Results:

Specific NHTSA/IIHS ratings for the 1988-1994 E32 are not as readily available as modern vehicles, but BMW historically focused on robust chassis design.

ABS:

Standard Anti-lock Braking System (ABS).

Traction Control:

Optional ASC (Automatic Stability Control) on later models.

Airbags:

Driver's side airbag standard on later models. Passenger airbag optional or standard on higher trims/later years.

Seatbelts:

Three-point seatbelts with pretensioners for front occupants.

💡 Technology Features

Audio System:

Premium Hi-Fi audio systems were available, often with Nakamichi or Bavaria branded components. Cassette tape player and AM/FM radio were standard.

Navigation:

Early BMW GPS navigation systems were available as an option on later E32 models, often with a trunk-mounted module and dash display.

Cruise Control:

Electronic cruise control system.

Parking Sensors:

Rear Park Distance Control (PDC) became available on later models.

Diagnostics Port:

OBD-I diagnostic connector, typically located under the hood or dashboard.

🔧 Maintenance

Oil Change Interval:

Typically every 7,500-10,000 miles (12,000-16,000 km) or annually, depending on driving conditions and oil type used. The onboard Condition Based Service (CBS) system (if equipped) would also dictate intervals.

Coolant Change:

Every 2-3 years or 30,000-50,000 miles (48,000-80,000 km). Refer to manual for specific BMW coolant type.

Spark Plugs:

Intervals vary by engine and plug type (e.g., Platinum/Iridium). Platinum plugs typically around 60,000 miles (96,000 km); check specific engine documentation.

Engine Oil Viscosity:

Commonly 5W-30 or 10W-40 synthetic engine oil, depending on climate. BMW Longlife-98 or Longlife-01 specifications are preferred for modern equivalents.

Coolant:

BMW Blue (Glysantin G48 or equivalent) ethylene glycol based coolant. Part # 83 51 9 407 776.

Brake Fluid:

DOT 4 (or DOT 3, check manual). BMW Part # 83 13 0 306 757.

M60 Engine Timing Chain Guides:

The M60 V8 engines are known for plastic timing chain guides that can degrade and fail, potentially causing severe engine damage. Early detection and replacement are crucial.

Cooling System:

Plastic components in the cooling system (e.g., expansion tank, thermostat housing) can become brittle and crack with age.

Electrical Gremlins:

Like many complex vehicles of this era, wiring harness degradation, faulty sensors, and module failures can lead to various electrical issues.

Door Handle Seals:

Seals on door handles can degrade, leading to water ingress into the door panel.

Headliner:

The fabric on the headliner can sag due to adhesive failure.

M70 V12 Maintenance:

The V12 engine is complex, with two ECUs, two fuel pumps, and dual ignition systems, requiring specialized maintenance and potentially higher repair costs.

📚 Vehicle History

Bmw Legacy:

BMW has a long history of producing executive and luxury sedans, with the 7 Series being its pinnacle offering.

E32 Introduction:

The E32 replaced the E23 7 Series in 1986 and was produced until 1994. It was a significant step forward in design, technology, and performance.

Engine Lineup Expansion:

The initial E32 lineup featured the 735i (M30 engine), later expanded with the V8-powered 740i (M60 engine) and the flagship V12 750iL (M70 engine).

Production Period:

1986-1994

Manufacturing Locations:

Primarily Dingolfing, Germany.

🏆 Awards & Recognition

Automotive Journalism:

Consistently praised by automotive journalists for its driving dynamics, build quality, and advanced technology for its era.

Consumer Reports:

While specific ratings from the period are not easily recalled, BMW vehicles generally scored well in categories like handling and performance, though reliability on some models was a point of discussion.