BMW 320i 1987-1991 Workshop Service Manual Repair

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🏷️ Basic Information Identification Make: BMW Model: 320i Years Covered: 1987, 1988, 1989, 1990, 1991 Codes Chassis Code: E30 📋 Manual Details Coverage Areas Engine Mechanical: Yes Engine Electrical: Yes...

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Type: Car

Vendor:

Sku: 423544

Tags: 1987 1988 1989 1990 1991 320i BMW Car Cars Misc

Product variants

Description

🏷️ Basic Information

Identification

Make:

Model:

Years Covered:

1987, 1988, 1989, 1990, 1991

Codes

Chassis Code:

📋 Manual Details

Coverage Areas

Engine Mechanical:

Engine Electrical:

Fuel System:

Ignition System:

Transmission Manual:

Transmission Automatic:

Drivetrain:

Suspension:

Steering:

Brakes:

Body And Chassis:

Heating And Air Conditioning:

Electrical System Body:

Troubleshooting:

Wiring Diagrams:

Page Count

Estimated Pages:

Variable (PDF format, typically hundreds of pages)

Manual Type

Type:

Workshop Service Manual / Repair Manual

Language

Language:

English (assumed based on common availability)

Format

Format:

PDF Download

⚙️ Engine Specifications

Primary Engine

Engine Code:

M20B20

Engine Type:

Inline 6-cylinder, SOHC

Displacement:

1990 cc (2.0 L)

Bore:

80.0 mm

Stroke:

66.0 mm

Performance

Horsepower Ps:

126-129 PS @ 6000 rpm (depending on specific market/tune)

Torque Nm:

174-180 Nm @ 4300 rpm (depending on specific market/tune)

Fuel System

Fuel Delivery:

Bosch L-Jetronic or Motronic fuel injection

Fuel Type:

Unleaded gasoline

Compression Ratio:

8.5:1 or 9.4:1 (depending on specific market/tune)

🔧 Transmission

Standard

Transmission Type Std:

4-speed manual

Optional

Transmission Type Opt:

3-speed or 4-speed automatic (ZF)

Features

Drive Type:

Rear-wheel drive (RWD)

📐 Dimensions

Exterior

Length:

Approx. 4325 mm

Width:

Approx. 1675 mm

Height:

Approx. 1380 mm

Wheelbase:

Approx. 2570 mm

Weights

Curb Weight:

Approx. 1200-1300 kg

🛡️ Safety Features

Ratings

NHTSA Crash Test Rating:

Not available for this model year range by modern standards

Features

Optional on some models/trims

Airbags:

Not standard; potentially available as a dealer-installed option on later models

Seatbelts:

Standard front seat belts; rear seat belts depending on market/trim

Crumple Zones:

Yes, characteristic of BMW E30 design

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 5,000-10,000 miles or annually (refer to manual for specifics)

Spark Plug Replacement:

Refer to manual, typically 30,000-60,000 miles

Timing Belt Replacement:

The M20 engine uses a timing chain, not a belt.

Fluid Specifications

Engine Oil Type:

API SG or higher, SAE 15W-40 or 10W-40 (refer to manual for exact specification)

Coolant Type:

Ethylene glycol based antifreeze with corrosion inhibitors (BMW blue or green)

Brake Fluid Type:

DOT 3 or DOT 4

Transmission Fluid Manual:

GL-4 gear oil (e.g., SAE 75W-90)

Transmission Fluid Automatic:

Dexron II or equivalent

Differential Fluid Type:

Hypoid gear oil GL-5 (e.g., SAE 80W-90)