BMW 735i 735iL 1989 Full Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 735i / 735iL Year: 1989 Codes Chassis Code: E32 Engine Code: M30B35 👋 Introduction Market Position Segment: Full-size Luxury Sedan Target Audience: Luxury...

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标签: 1989 735i 735iL BMW Car Cars Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

735i / 735iL

Year:

Codes

Chassis Code:

Engine Code:

M30B35

👋 Introduction

Market Position

Segment:

Full-size Luxury Sedan

Target Audience:

Luxury car buyers seeking performance, comfort, and advanced engineering

Competitive Analysis

Key Competitors:

Mercedes-Benz S-Class (W126), Jaguar XJ, Audi V8 Quattro, Cadillac DeVille

Key Features

Luxury Appointments:

Premium interior materials, advanced climate control, optional leather upholstery, high-quality sound systems

Engineering Excellence:

Renowned BMW inline-six engine, sophisticated suspension, excellent chassis dynamics

Driving Dynamics:

Balanced handling, precise steering, comfortable ride quality

📋 Manual Details

Coverage Areas

Covered Models:

BMW 735i, BMW 735iL

Coverage Scope:

Full Service Repair, Maintenance, Rebuilding, Refurbishment, Restoration

Page Count

Estimated Page Count:

1500+

Manual Type

Type:

Factory Service Manual / Repair Manual

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine assembly, disassembly, overhaul, cylinder head, block, crankshaft, pistons, connecting rods, timing components, lubrication system, cooling system

Engine Electrical:

Ignition system (DME control), fuel injection system (Motronic), starting system, charging system, sensors, actuators, wiring diagrams

Transmission Manual:

Manual transmission (Getrag 260) overhaul, clutch system, linkage, drive shafts

Transmission Automatic:

Automatic transmission (ZF 4HP22) overhaul, electronic control, hydraulic system, torque converter, cooler lines

Suspension Steering:

Front and rear suspension components, shock absorbers, springs, bushings, steering gear, power steering system, alignment specifications

Brakes:

Front and rear brake systems (discs), ABS (Anti-lock Braking System), hydraulic lines, calipers, master cylinder, parking brake

Electrical Body:

Lighting system, power windows, power seats, mirrors, door locks, central locking, sunroof, interior and exterior lighting, body control modules

HVAC:

Heating, Ventilation, and Air Conditioning (HVAC) system, climate control, refrigerant system, blower motor, evaporator, condenser

Chassis Body:

Body panel removal/installation, chassis structural integrity, interior trim, sound deadening, underbody coatings

Fuel System:

Fuel tank, fuel pump, fuel lines, fuel filter, fuel injectors, evaporative emissions control (EVAP)

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks, spark plug replacement, belt inspection/replacement

Troubleshooting:

Diagnostic procedures, fault code interpretation, common problems and solutions, electrical system troubleshooting

Repair:

Step-by-step repair instructions for all major systems, component replacement, adjustments

Rebuild:

Detailed procedures for engine and transmission rebuilding, including torque specifications and tolerances

Restoration:

Guidance on refurbishment of various components, bodywork, and interior for restoration projects

Technical Depth

Depth:

Comprehensive, from basic maintenance to complex engine and transmission overhauls, including electrical diagnostics

Diagnostics:

Detailed diagnostic charts, procedures for using specialized BMW diagnostic tools (e.g., GT1 if applicable or general methods)

Specifications:

Torque values, clearances, fluid capacities, electrical schematics, part identification

📊 Manual Specifications

File Format

Format:

Searchability:

Searchable text content for quick information retrieval

Quality:

High-resolution scans of original factory documentation, clear diagrams and illustrations

Print Quality

Printability:

Printable pages for workshop use

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Naturally Aspirated Inline-6 (M30B35)

Displacement:

3.430 cc (3.4 Liters)

Bore X Stroke:

92.0 mm x 86.0 mm

Compression Ratio:

8.0:1 or 9.0:1 (depending on market/spec)

Performance

Horsepower:

208 hp @ 5,700 rpm (approx.)

Torque:

290 Nm (214 lb-ft) @ 4,000 rpm (approx.)

Fuel System

Fuel Delivery:

Bosch Motronic ML-1.3 Electronic Fuel Injection

Fuel Type:

Unleaded Premium Gasoline (91+ octane)

Ignition System

Ignition Type:

Electronic Ignition with Knock Control

🔧 Transmission

Standard

Standard Transmission:

Getrag 260 5-Speed Manual

Optional

Optional Transmission:

ZF 4HP22 4-Speed Automatic

Features

Automatic Features:

Electronic control, sport/economy modes (depending on specific model year/options)

Fluid Specifications

Manual Transmission Fluid:

BMW MTF LT-2 or equivalent SAE 75W-90 GL-4 synthetic gear oil

Automatic Transmission Fluid:

BMW ATF LT71141 or Dexron III/VI equivalent

📐 Dimensions

Exterior

Wheelbase 735I:

2,830 mm (111.4 in)

Wheelbase 735Il:

3,020 mm (118.9 in)

Length 735I:

4,970 mm (195.7 in)

Length 735Il:

5,160 mm (203.1 in)

Width:

1,800 mm (70.9 in)

Height:

1,400 mm (55.1 in)

Weights

Curb Weight 735I:

1,770 kg (3,902 lbs)

Curb Weight 735Il:

1,860 kg (4,100 lbs)

Gross Vehicle Weight Rating:

Approx. 2,250 kg (4,960 lbs)

Tires

Tire Sizes:

205/65R15, 225/60R15 (optional, depending on trim/options)

Wheels

Wheel Bolt Pattern:

5x120 mm

Wheel Offset:

ET 19 or ET 22 (common OEM fitments)

🛡️ Safety Features

Ratings

Crash Test Data:

Limited official crash test data available for this era and specific model, but designed to high safety standards for its time.

Active Features

Standard Anti-lock Braking System (ABS)

Traction Control:

Optional ASC (Automatic Stability Control) on some models

Passive Features

Airbags:

Driver's side airbag was optional and became standard later in the E32's lifecycle. Passenger airbags were not available for this model year.

Seatbelts:

Three-point inertia-reel seatbelts for all occupants

Structure:

Reinforced safety cell, crumple zones

💡 Technology Features

Infotainment

Audio System:

Premium Hi-Fi system options, including cassette player and optional CD changer

Climate Control:

Automatic climate control with independent driver/passenger temperature settings

Driver Assistance

Cruise Control:

Standard cruise control

On Board Computer:

Check Control system for monitoring vehicle status and warning lights

Connectivity

Telecommunications:

Optional car phone integration (rare and outdated)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 10,000-15,000 km (6,000-10,000 miles) or annually, whichever comes first (check manual for exact specification)

Spark Plug Replacement:

Every 30,000-40,000 km (20,000-25,000 miles) (standard copper plugs)

Coolant Flush:

Every 2-3 years or 40,000-50,000 km (25,000-30,000 miles)

Brake Fluid Flush:

Every 2 years

Fluid Specifications

Engine Oil Type:

API SG or higher, SAE 10W-40 or 15W-40 synthetic blend or full synthetic recommended

Engine Oil Capacity:

6.5 Liters (6.9 US Quarts) with filter

Coolant Type:

BMW Blue Antifreeze/Coolant or equivalent G48 ethylene glycol based coolant

Power Steering Fluid:

BMW Power Steering Fluid (CHF 11S type is often used, check manual for confirmation) or Pentosin 11S

Known Issues

Engine M30:

Oil leaks from valve cover gasket and oil pan gasket, potential head gasket issues with severe overheating, oil separator system clogging

Cooling System:

Plastic coolant expansion tank prone to cracking, thermostat housing leaks, water pump failures

Electrical:

Failing MAF sensor, ignition coil issues, alternator problems, ABS sensor failures, door lock actuator failures, SRS system warning lights

Suspension:

Worn control arm bushings, ball joints, shock absorber fatigue, rear subframe mounting point degradation

HVAC:

Heater control valve failures, blower motor resistor issues, AC compressor clutch problems, evaporator core leaks

Transmission Auto:

Solenoid failures in ZF 4HP22, torque converter issues, cooler line leaks

📚 Vehicle History

Brand Heritage

Brand Legacy:

BMW's reputation for 'The Ultimate Driving Machine' with a focus on performance, luxury, and engineering innovation.

Model Evolution

Generation:

E32, second generation of BMW's flagship 7 Series, introduced in 1986.

Key Updates E32:

Significant styling update over the E23, introduction of longer wheelbase (iL version), advanced electronics, improved aerodynamics.

735I Positioning:

The core model in the 7 Series lineup, offering a balance of performance and luxury powered by the robust M30 engine.

Production

Production Years:

1986-1994 (E32 generation)

Manufacturing Location:

Dingolfing, Germany

🏆 Awards & Recognition

Recognitions

Awards:

While specific awards for the 1989 model are not widely publicized, the E32 generation generally received acclaim for its blend of performance and luxury, solidifying BMW's market position.

Ratings

Industry Reputation:

Highly regarded for its engineering, driving dynamics, and build quality, often considered a benchmark in the luxury sedan segment of its era.