BMW 520i 1988 Workshop Repair Service Manual

Prix habituel: $17.99
Prix soldé: $17.99
Prix habituel
Prix unitaire: par

🏷️ Basic Information Identification Make: BMW Model: 520i Year: 1988 Chassis Code: E34 👋 Introduction Market Position Segment: Executive Sedan Positioning: The BMW 5 Series (E34) positioned itself as a...

29 people are viewing this right now

Taper: Car

Distributeur:

UGS: 434484

Mots clés: 1988 520i BMW Car Cars Misc

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Model:

Year:

Chassis Code:

👋 Introduction

Market Position

Segment:

Executive Sedan

Positioning:

The BMW 5 Series (E34) positioned itself as a premium executive sports sedan, emphasizing driving dynamics, build quality, and sophisticated engineering.

Competitive Analysis

Competitors:

Key competitors included the Mercedes-Benz W124 E-Class, Audi 100/200, Jaguar XJ, and Volvo 240/700 series.

Key Features

Design Philosophy:

Evolved from the E28, the E34 brought a more aerodynamic and modern design, with a focus on driver engagement and improved comfort.

Engineering Emphasis:

Known for its balanced chassis, refined engines, and optional advanced features for its time.

📋 Manual Details

Coverage Areas

Covered Models:

All BMW 520i (E34) models, engines, trim levels, and transmission types for 1988

Page Count

Estimated Pages:

Likely over 1000 pages (typical for comprehensive BMW workshop manuals of this era)

Manual Type

Type:

Workshop Repair Service Manual

Language

Language:

English

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine assembly, disassembly, overhaul, lubrication system, cooling system, fuel system (including injection), exhaust system, ignition system.

Engine Management:

Engine control unit (ECU) diagnostics, sensor data, troubleshooting fuel injection and ignition timing.

Transmission Manual:

Manual transmission service, repair, and overhaul; clutch assembly; gear shift linkage.

Transmission Automatic:

Automatic transmission service, repair, and overhaul (if applicable to specific 1988 520i variants covered); torque converter; transmission control.

Drivetrain:

Driveshaft, universal joints, differential, axle shafts, wheel bearings.

Suspension:

Front and rear suspension systems, shock absorbers, springs, control arms, sway bars, bushings, alignment specifications.

Steering:

Power steering system, steering rack/box, steering column, tie rods, steering angle sensor (if applicable).

Brakes:

Brake system components (discs, pads, calipers, lines, master cylinder), ABS (Anti-lock Braking System) diagnostics and repair, parking brake.

Electrical System:

Battery, charging system (alternator), starting system (starter motor), fuses, relays, wiring diagrams, lighting system.

Body And Interior:

Body panel repair, door mechanisms, glass replacement, seat adjustment, dashboard components, trim removal and installation.

HVAC:

Heating, Ventilation, and Air Conditioning (HVAC) system service, refrigerant handling, blower motor, climate controls.

Diagnostics Troubleshooting:

General troubleshooting procedures, symptom-based diagnosis, fault code interpretation (for applicable systems).

Procedures Included

Scheduled Maintenance:

Detailed service intervals, oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection/replacement.

Component Replacement:

Step-by-step guides for replacing major components like alternators, starters, radiators, fuel pumps, brake pads, etc.

Overhaul Rebuild:

Comprehensive instructions for engine and transmission overhauls, including torque specifications, clearances, and assembly procedures.

Diagnostic Tests:

Procedures for testing various components and systems, e.g., compression testing, fuel pressure testing, electrical continuity checks.

Alignment Procedures:

Wheel alignment specifications and adjustment procedures.

Wiring Diagrams:

Detailed electrical schematics for all vehicle systems.

Technical Depth

Depth:

Comprehensive, covering everything from routine maintenance to complete engine and transmission rebuilds, including diagnostics and electrical troubleshooting.

📊 Manual Specifications

File Format

Format:

Searchability:

Likely searchable text (standard for professional PDF manuals).

Printability:

Printable pages for workshop use.

Print Quality

Quality:

High-resolution scans, ensuring clarity of diagrams and text.

Binding Type

Binding:

N/A (Digital PDF Download)

Paper Type

Paper Type:

N/A (Digital PDF Download)

⚙️ Engine Specifications

Primary Engine

Engine Code Variant:

M20B20 (2.0L Inline-6)

Displacement:

1991 cc (2.0 Liters)

Configuration:

Inline 6-cylinder, SOHC (Single Overhead Camshaft), 2 valves per cylinder

Performance

Horsepower:

129 PS (127 hp) at 5800 rpm (approximate, depending on market specifications)

Torque:

174 Nm (128 lb-ft) at 4500 rpm (approximate)

Fuel System

Injection System:

Bosch Motronic electronic fuel injection (EFI)

Fuel Type:

Unleaded gasoline

Cooling System

Coolant Type:

BMW approved antifreeze/coolant (typically ethylene glycol based)

Lubrication System

Oil Type Recommendation:

SAE 15W-40 or 10W-40 (refer to manual for specific BMW approvals and viscosity based on climate)

Engine Management

ECU Type:

Bosch Motronic

🔧 Transmission

Standard

Transmission Type:

Getrag 260 5-speed manual transmission

Optional

Transmission Type:

ZF 4HP22 4-speed automatic transmission

Features

Manual Clutch Type:

Hydraulically operated single dry plate clutch

Automatic Features:

Sport/Economy mode selector (on some models)

Fluid Specification

Manual Transmission Fluid:

GL-4 Gear Oil (e.g., SAE 75W-90, consult manual for specific BMW approvals)

Automatic Transmission Fluid:

Dexron-II or equivalent ATF (consult manual for precise BMW specification)

📐 Dimensions

Exterior

Length:

4730 mm (186.2 in)

Width:

1750 mm (68.9 in)

Height:

1410 mm (55.5 in)

Wheelbase:

2795 mm (110.0 in)

Weights

Curb Weight:

Approx. 1450-1550 kg (3197-3417 lbs) depending on transmission and options

Gross Vehicle Weight Rating:

Refer to vehicle data plate

Cargo

Trunk Capacity:

Approx. 460 liters (16.2 cu ft)

🛡️ Safety Features

Ratings

Crash Test Era:

Safety standards and testing protocols were different in 1988; specific ratings like NHTSA/Euro NCAP are not directly comparable to modern standards. Focus on inherent design safety.

Active Features

Anti-lock Braking System (ABS) was available as an option on many E34 models, including the 520i.

Traction Control:

Traction control (ASC) was introduced later in the E34 lifecycle, likely not standard or widely available on the 1988 520i.

Passive Features

Airbags:

Driver's side airbag was optional or standard on later E34 models; early 1988 models may not have it.

Seatbelts:

Three-point inertia-reel seat belts for front and rear occupants.

Body Structure:

Reinforced safety cell, crumple zones designed for energy absorption.

💡 Technology Features

Infotainment

Audio System:

Factory-installed AM/FM stereo with cassette player. Optional premium sound systems available.

Display:

Basic dashboard instrumentation, central warning lights, and potentially an analog or basic digital clock.

Driver Assistance

Anti-lock Braking System (ABS) was an advanced feature for its time, improving braking stability.

Cruise Control:

Electronic cruise control was available as an option.

Connectivity

Connectivity Features:

Limited by modern standards. Primarily basic radio and optional powered features (windows, mirrors, sunroof).

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 7,500 to 10,000 miles (12,000 to 16,000 km) or annually, whichever comes first (refer to manual for specific recommendations based on driving conditions).

Spark Plug Replacement:

Around 30,000 miles (48,000 km) for standard spark plugs of that era. Check manual for specific type and interval.

Coolant Flush:

Every 2-3 years or 30,000 miles (48,000 km).

Transmission Fluid Change Manual:

Recommended every 60,000-100,000 miles (100,000-160,000 km) or as per manual.

Transmission Fluid Change Auto:

Recommended every 30,000-50,000 miles (50,000-80,000 km) or as per manual, especially for older units.

Fluid Specifications

Engine Oil Capacity:

Approx. 5.7 liters (6.0 US quarts) with filter change (refer to manual for precise capacity).

Coolant Capacity:

Approx. 7.0 liters (7.4 US quarts).

Brake Fluid:

DOT 3 or DOT 4 (refer to manual for specific BMW approval).

Known Issues

Cooling System:

Plastic coolant expansion tanks and water pump impellers can become brittle and crack over time, leading to leaks.

Fuel System:

Fuel pump failures and clogged fuel injectors can occur with age and mileage. The Motronic system can be sensitive to fuel quality.

Electrical System:

Degradation of wiring insulation (especially in engine bay), faulty door lock actuators, and issues with the Motronic control unit are common.

Suspension Bushings:

Rubber suspension bushings (control arms, sway bars) wear out, leading to clunks and poor handling.

Rear Wheel Bearings:

Rear wheel bearings can be a wear item, especially if subjected to aggressive driving or poor maintenance.

Headliner:

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

📚 Vehicle History

Brand Heritage

Bmw Philosophy:

BMW's long-standing reputation for building 'The Ultimate Driving Machine', emphasizing performance, engineering, and driver connection.

Model Evolution

E34 Introduction:

The E34 generation of the 5 Series was introduced in 1987 (for the 1988 model year in North America), succeeding the E28.

E34 Design:

Designed by Boyke Boyer, the E34 featured a sleeker, more aerodynamic profile than its predecessor, with a lower drag coefficient.

E34 Engines:

The E34 range included various inline-4 and inline-6 engines, with the 520i being one of the entry-level models in many markets.

Production

Production Years:

E34 production ran from 1987 to 1996.

Manufacturing Locations:

Primarily Germany (Dingolfing, Munich).

🏆 Awards & Recognition

Recognitions

E34 Reputation:

The E34 generation is widely regarded as one of BMW's best-built and most enjoyable sedans of the late 20th century, praised for its chassis dynamics and build quality.

Car And Driver:

Often featured on Car and Driver's '10Best' lists in various configurations throughout its production run, highlighting its driving prowess.

Ratings

Reliability Perception:

Generally considered reliable when properly maintained, though specific components can require attention due to age.