BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

+ 1. The maintenance instruction
- 2. Maintenance service
   2.2. Recommended lubricants and liquids
   2.3. Periodicity of service
   2.4. Features of routine maintenance of the car
   2.5. The general data on additional maintenance service
   2.6. Check of level of liquids
   2.7. Check of a condition of tyres and pressure in tyres
   2.8. Oil replacement in the engine and the oil filter
   2.9. Check and restoration of level of a liquid in a wheel
   2.10. Check of level of a liquid in automatic transmission
   2.11. Shift of wheels
   2.12. Check and replacement of hoses in a motor compartment
   2.13. Check, adjustment and replacement of belts of a drive of hinged units
   2.14. Check and adjustment of turns and quality of a mix FROM) idling
   2.15. Check of a condition and battery gymnastics
   2.16. Check and replacement of candles
   2.17. Check of high-voltage wires, бегунка and distributor covers
   2.18. Check of level of oil in a manual transmission
   2.19. Check of level of oil in the main transfer
   2.20. Check and adjustment of backlashes in valves (except engine M40)
   2.21. Draught throttle заслонки
   2.22. Replacement of the air filter
   2.23. Check of fuel system
   2.24. Check of system of cooling
   2.25. Exhaust system check
   2.26. Check of shock-absorbers, a suspension bracket and a steering
   2.27. Check of covers of semiaxes
   2.28. Check of brakes
   2.29. Check of brushes of screen wipers
   2.30. Liquid replacement in automatic transmission and the filter
   2.31. Cooling system – replacement of a liquid and washing
   2.32. Replacement of the fuel filter
   2.33. Oil replacement in a manual transmission
   2.34. Oil replacement in картере the main transfer
   2.35. Check of system of catching of steams of gasoline (EVAP-system)
   2.36. Installation of the light alarm system of necessity of servicing
   2.37. Replacement of a gear belt
+ 3. The engine
+ 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

2.12. Check and replacement of hoses in a motor compartment

The prevention

Conditioner hoses are checked and vary only in car-care centre service.

Under the influence of heats in a motor compartment gradually there is a hardening and destruction of the rubber and plastic hoses which are ensuring functioning of various units of the engine. It is necessary to check periodically a condition of hoses, presence on them of cracks and hardening, easing of connections, tightness infringement.

The procedure for test of hoses of system of cooling and brakes is described in corresponding subsections (subsection 2.24 and subsection 10.15 see).

Almost all hoses fasten by means of collars. Check durability of an inhaling of collars as fastening easing leads to tightness infringement. In those places in which collars are not provided, check reliability of consolidation of a hose on unions, elasticity loss in such connections owing to swelling or hardening of hoses is not supposed.

Vacuum hoses

Vacuum hoses (almost all concern system of decrease in toxicity) it is possible to distinguish on colour, or on the colour strips pasted on them. For various systems of the engine vacuum hoses with various in the thickness of walls, mechanical and thermal firmness are used. At replacement track that new vacuum hoses in accuracy corresponded to the replaced.

Frequently the hose can be checked up only after removal from the car. If some hoses act in film, preliminary put labels on interfaced the union and hoses subsequently not to break their relative positioning.

At check of a condition of vacuum hoses at the same time examine also plastic tees. Check up presence on them of cracks, and also hose deformations in a place прилегания to the union of a tee which can cause tightness infringement.

For check of leaks listen through a hose piece, having put it to a checked place. Characteristic "hissing" will specify in leak presence.

Fuel hoses

At a detachment of fuel hoses keep in mind that fuel can be in them under pressure.

Check up a condition of rubber fuel hoses, presence on them of cracks about bends and in places of fastenings.

At replacement of hoses of a fuel highway new hoses should correspond in accuracy to the replaced.

At replacement of hoses always establish collars with screw fastening.

Metal tubes

Metal tubes are usually used in a fuel highway of system of injection. Check up presence on tubes braided pressed and cracks.

At replacement it is necessary to establish only seamless steel tubes. Tubes from copper or aluminium do not maintain vibrating loadings.

Check up a condition of metal tubes and unions of system of a hydrodrive of brakes in junctions with the main brake cylinder and дозатором (if it is provided), presence of cracks and ослабших connections it is not supposed. At leak detection immediately carefully check up all system of brakes.

Hoses of the hydraulic booster of a wheel

At detection подтеканий liquids replace the damaged hoses of the hydraulic booster of a wheel and their collars.