BMW 525 525i 1990 Service Repair Workshop Manual

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🏷️ Basic Information Identification Make: BMW Model: 525i Year: 1990 Product Name: BMW 525 525i 1990 Service Repair Workshop Manual Generation Chassis Code: E34 Generation Name: Second Generation (E34) Codes...

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Taper: Car

Distributeur:

UGS: 432728

Mots clés: 1990 525 525i BMW Car Cars Misc

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Model:

Year:

Product Name:

BMW 525 525i 1990 Service Repair Workshop Manual

Generation

Chassis Code:

Generation Name:

Second Generation (E34)

Codes

Engine Code Prefix:

Engine Code Specific:

2.5 L M20B25

👋 Introduction

Market Position

Segment:

Executive mid-size sedan

Key Selling Points:

Sporty handling, refined interior, strong straight-six engine, advanced engineering for its era

Competitive Analysis

Competitors:

Mercedes-Benz W124 E-Class, Audi V8 (D1), Lexus LS 400 (introduced later in the generation)

Key Features

Design Philosophy:

Bauhaus-inspired design, aerodynamic efficiency, driver-centric cockpit

Chassis Technology:

Advanced multi-link rear suspension, sophisticated front suspension, often lauded for its ride and handling balance

📋 Manual Details

Coverage Areas

Primary Coverage:

Comprehensive service, repair, and maintenance

Secondary Coverage:

Diagnostics, troubleshooting, electrical systems, bodywork, specifications

Page Count

Estimated Pages:

Detailed page count not specified in product description; typically 800-1200 pages for comprehensive E34 manuals.

Manual Type

Type:

Service Repair Workshop Manual

Language

Language:

English (presumed, based on typical market offerings for BMW manuals)

Format

Format:

Digital (PDF likely), potentially also available in print.

📖 Manual Coverage

Systems Covered

Engine Management:

Engine overhaul, fuel injection (Bosch Motronic), ignition system, cooling system, lubrication system, exhaust system

Powertrain:

Manual transmission (Getrag 260), automatic transmission (ZF 4HP22 EH), clutch, driveshafts, differential

Suspension Steering:

Front suspension (MacPherson struts), rear suspension (multi-link), power steering system, steering column, wheel alignment

Brakes:

Front disc brakes (ventilated), rear disc brakes, anti-lock braking system (ABS II), brake fluid specifications

Electrical:

Battery, alternator, starter motor, lighting systems, wiring diagrams, fuses and relays, instrument cluster, power windows, central locking

Body Chassis:

Body panel removal and installation, door mechanisms, interior trim, bumpers, sunroof, chassis lubrication

Procedures Included

Maintenance:

Oil changes, filter replacements, spark plug replacement, coolant flushes, belt replacement, brake pad replacement

Diagnostics:

Troubleshooting guides, symptom-based diagnostics, common fault finding, diagnostic trouble codes (if applicable to era)

Repair:

Engine rebuilds, transmission overhauls, suspension component replacement, brake system repair, electrical component diagnosis and replacement

Installation:

Accessory installation, component replacement procedures

Technical Depth

Depth Level:

Comprehensive, suitable for professional mechanics and advanced DIY enthusiasts

Detail Level:

Detailed torque specifications, component tolerances, diagnostic flowcharts, wiring diagrams

📊 Manual Specifications

File Format

File Type:

Likely PDF; searchable text is a common feature of quality digital manuals.

Print Quality

Quality:

High-resolution scans for clear text and diagrams if digital; print quality is variable if a printed version.

Binding Type

Binding:

Not applicable if digital; for print, typically spiral-bound or perfect-bound.

Paper Type

Paper Quality:

Not applicable if digital; traditionally printed on durable, high-quality paper suitable for workshop environments.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Inline-6 Cylinder, Naturally Aspirated

Engine Code:

M20B25

Displacement:

2494 cc (2.5 Liters)

Bore X Stroke:

84 mm x 75 mm

Compression Ratio:

8.8:1

Valvetrain:

SOHC (Single Overhead Camshaft), 2 valves per cylinder

Performance

Horsepower:

170 hp (125 kW) @ 5800 rpm

Torque:

220 Nm (162 lb-ft) @ 4300 rpm

Fuel System

Fuel Delivery:

Bosch Motronic ML-1.3 Fuel Injection

Fuel Type:

Unleaded Premium Gasoline (RON 91 or higher recommended)

Engine Management

Ignition System:

Distributorless Electronic Ignition (depending on specific market variant)

🔧 Transmission

Standard

Type:

5-Speed Manual Transmission (Getrag 260/5)

Optional

Type:

4-Speed Automatic Transmission (ZF 4HP22 EH)

Features

Clutch:

Hydraulically operated single dry plate clutch

Transmission Fluid Manual:

BMW MTF LT-2 or equivalent (e.g., Pentosin MTF 2)

Transmission Fluid Automatic:

ATF Dexron III or equivalent

📐 Dimensions

Exterior

Length:

4720 mm (185.8 in)

Width:

1751 mm (68.9 in)

Height:

1410 mm (55.5 in)

Wheelbase:

2799 mm (110.2 in)

Front Track:

1475 mm (58.1 in)

Rear Track:

1475 mm (58.1 in)

Weights

Curb Weight:

1540 kg (3395 lbs) - Manual Transmission

Gross Vehicle Weight Rating:

Not explicitly specified, typically around 2000-2100 kg

Wheel Bolt Pattern:

5 x 120 mm

Wheel Size:

15x7 inches (standard), 15x7.5 or 16 inches optional

Tire Size Standard:

205/65R15

🛡️ Safety Features

Ratings

Crash Test Data:

Limited specific US NHTSA ratings available for this European market-focused vehicle; generally considered robust for its era.

Active Features

Braking System:

Four-wheel disc brakes with Bosch II Anti-lock Braking System (ABS)

Steering System:

Servotronic power steering (variable assistance on some models)

Passive Features

Airbags:

Driver's side airbag was optional or standard on later models of this generation, not guaranteed on all 1990 US 525i.

Seatbelts:

Three-point inertia-reel seatbelts with pretensioners (driver and front passenger)

Body Construction:

Reinforced safety cage, crumple zones

💡 Technology Features

Infotainment

Audio System:

Standard BMW AM/FM cassette player; optional CD player, upgraded Hi-Fi sound systems.

On Board Computer:

Optional On-Board Computer (OBC) displaying fuel consumption, range, average speed, etc.

Driver Assistance

Standard Bosch II Anti-lock Braking System (ABS)

Cruise Control:

Standard or optional depending on trim level.

Connectivity

Connectivity Features:

Limited by modern standards; primarily focused on internal diagnostics and basic vehicle functions.

🔧 Maintenance

Service Intervals

Oil Change:

Typically every 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, depending on driving conditions and oil used.

Coolant Flush:

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

Spark Plugs:

NGK BKR6EK or equivalent; replacement every 30,000-50,000 miles (48,000-80,000 km).

Drive Belts:

Inspect annually, replace as needed (typically 50,000-70,000 miles / 80,000-112,000 km).

Fluid Specifications

Engine Oil:

SAE 5W-30 or 5W-40 synthetic; API SJ or higher. Capacity: 4.25 Liters (4.5 US Quarts) with filter.

Coolant:

BMW Blue Coolant or equivalent; 50/50 mix with distilled water.

Brake Fluid:

DOT 4

Known Issues

Cooling System:

Water pump failure, thermostat housing leaks, coolant hose degradation, fan clutch failure.

Engine Management:

Mass Air Flow (MAF) sensor issues, Idle Control Valve (ICV) problems, ignition coil failures (if applicable).

Suspension:

Front control arm bushings, rear subframe mounts, strut mounts.

Electrical:

Corrosion in fuse box, OBC (On-Board Computer) pixelation, central locking issues, wiring harness degradation.

Interior:

Headliner sagging, dashboard cracking, door panel separation.

📚 Vehicle History

Brand Heritage

Brand Legacy:

BMW is renowned for its 'Ultimate Driving Machine' slogan, emphasizing performance, luxury, and engineering.

Model Evolution

E34 Introduction:

The E34 generation replaced the E28 and was produced from 1987 to 1996. The 525i was a key model in this lineup.

525I Positioning:

The 525i offered a balance of performance and efficiency, positioning itself below the V8 models (535i, 540i) but above the 520i.

Production

Production Period:

1987-1996 (E34 generation)

Manufacturing Locations:

Germany (Dingolfing, Munich), Austria, South Africa, Thailand

🏆 Awards & Recognition

Recognitions

Car And Driver:

Car and Driver's 10Best list multiple times for the E34 generation, often highlighting the 5-series' driving dynamics.

Ratings

Overall Reputation:

Highly regarded for its build quality, driving experience, and technological advancement for its time.