BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

+ 1. The maintenance instruction
+ 2. Maintenance service
- 3. The engine
   + 3.1.2. Specifications
   - 3.2. Dismantle and engine major repairs
      3.2.2. Specifications
      3.2.3. Major repairs – the general instructions
      3.2.4. Compression check in engine cylinders
      3.2.5. Major repairs – broad-brush observations
      3.2.6. Diagnostics of the engine with the help вакууметра
      3.2.7. Major repairs – alternatives
      3.2.8. Dismantle of the power unit
      3.2.9. Removal and engine installation
      3.2.10. An order of dismantling of the engine
      3.2.11. Dismantling of a head of the block of cylinders
      3.2.12. Clearing and check of a head of cylinders and details клапанного the mechanism
      3.2.13. Repair of valves
      3.2.14. Assemblage of a head of the block of cylinders
      3.2.15. Removal of pistons and rods
      3.2.16. Dismantle коленвала
      3.2.17. An intermediate shaft (only engine M20)
      3.2.18. Clearing of the block of cylinders
      3.2.19. Check of a condition of the block of cylinders
      3.2.20. Хоннингование cylinders
      3.2.21. Check of a condition of pistons and rods
      3.2.22. Condition check коленвала
      3.2.23. Check radical and шатунных bearings
      3.2.24. An engine assembly order
      3.2.25. Installation of piston rings
      3.2.26. Installation of an intermediate shaft
      3.2.27. Installation коленвала and check of backlashes in radical bearings
      3.2.28. Installation of a back epiploon
      3.2.29. Installation of rods and pistons, check of backlashes in шатунных bearings
      3.2.30. Start-up of the engine after repair and обкатка
   + 3.3. An engine electric equipment
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. An exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. A running gear
+ 12. A body
+ 13. An electric equipment
+ 14. A good advice

3.2.9. Removal and engine installation Removal

1. Execute actions on декомпрессии fuel system (subsection 6.10 see) and disconnect the battery from weight.
2. Remove a cowl, the air filter and air lines.
3. Merge a liquid and oil from the engine and a check point.

4. Accurately designate and disconnect from the engine all hoses, wires and cables, including kick-down-mode and cruise-control cables. Fuel hoses muffle.
5. Remove a radiator (except engine M40), the fan (subsection 4.6 see) and a casing.
6. Remove drive belts.
7. Remove the compressor, take aside and fix, without disconnecting from highways.
8. Remove a starter and the generator.
9. Remove an exhaust system (subsection 7.1.1 see).
10. On а/м from an automatic transmission remove hydrotransformer fastening to a leading disk. On engine M40 turn on from the pallet of the union of tubes of a cooler трансмиссионной liquids.
11. Assign hooks of the engine a chain or таль. If hooks are removed, a chain it is possible to assign hairpins of a soaking up collector, having laid the big washer and having tightened a nut.
12. Choose a weak point in тали (chains).
13. On engines M10 and М20 remove a back cross-beam and slightly lower a back part of a check point.
14. Turn away bolts of fastening of a check point to the engine.
15. Turn away a nut of fastening of support of the engine to a stretcher. On engines M40 turn away bolts and remove from support демпферы.
16. Be convinced that all details connecting the engine with a body or transmission are removed. All remained details designate and remove.
17. Slightly raise the engine and cautiously submit it forward and deduce from a check point. On а/м from an automatic transmission track the hydrotransformer. If the hydrotransformer descends together with the engine remove it with коленвала, otherwise leave it on transmission. Lift the engine and deduce from a motor compartment.

The prevention

If the hydrotransformer descends together with the engine at assemblage replace a forward epiploon of transmission as it can be damaged.

18. Remove a flywheel (a leading disk) and a back intensifying plate.


Installation is carried out upside-down. On а/м from an automatic transmission before assemblage establish the hydrotransformer on a check point, and then establish on a leading disk. On а/м from a manual transmission before assemblage grease a sock of a primary shaft of a check point with refractory greasing. Fill the conditioner with a coolant and check up tightness of highways.