BMW 3 Series (E30) Service Manual (1984-1990)

BMW 3 Series (E30) Service Manual (1984-1990)
Item #:XXXB390
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This Bentley Manual is the only comprehensive, single source of service information and specifications for BMW 3 Series (E30) cars from 1984-1990. Whether you're a professional technician or a do-it-yourself BMW owner, this manual will help you understand, maintain, and repair systems on 3 Series cars.




  • Fundamental automotive concepts, including explanations of basic troubleshooting,
    safe and effective workshop practices, and tools.

  • Complete preventive maintenance procedures from resetting the oil and service indicator light
    to the yearly brake fluid change. This manual tells you what maintenance to do, how and when to do it,
    and why it's important. Many of the maintenance recommendations actually exceed
    factory-recommended service and are designed to extend your BMW's service life.

  • Comprehensive Engine Management information explains specific BMW 3-Series driveability problems,
    with detailed troubleshooting and repair information for these Bosch Fuel Injection
    and Engine Management Systems: L-Jetronic (318i), Motronic (325, 325e, 325es),
    and Motronic 1.1 (325i, 325is, 325i Convertible).

  • Troubleshooting tips with fast, proven repair procedures
    used by BMW technicians and specialists.

  • Hard to find service information from dealer service bulletins, such as how to replace
    the camshaft timing belt, sprocket and tensioner with the correct Z-127 update,
    and cylinder head bolt replacement on early 3 Series cars.

  • Large, easy-to-read wiring schematics for major circuits.

  • Procedures and specifications for rebuilding engines and manual transmissions.


NOTE: For model years 1991, 1992 and 1993 E30 6-cylinder BMWs, this manual is applicable.
For model years 1991, 1992 and 1993 E30 4-cylinder BMWs, the engine and engine-related systems are not covered in this manual but the chassis/body systems are covered.


Models and Engines Covered:

  • 318i
    - (M10, 1.8L engine)

  • 325/e/es
    - (M20, 2.7L engine)

  • 325/i/is/Convertible
    - (M20, 2.5L engine)


click to enlarge, and for longer caption if available

Valve specifications

Transmissions Covered:

  • Getrag 240
    - (4-cylinder cars)

  • Getrag 260
    - (6-cylinder cars)


click to enlarge, and for longer caption if available

Withdrawing reverse gear shaft


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