Check of a condition and replacement of wires of the battery. BMW the 5th E28/E34 series (from 1981 to 1993 of release)
Repair of BMW E28 and series E34 from 1981 to 1993
1. Cars of the BMW brand of 5-series
2. Engine
3. Cooling system
4. Power supply system
5. Ignition system
6. Control systems of the engine and decrease in toxicity of the fulfilled gases
7. System of production of the fulfilled gases
8. Coupling
9. Manual box of gear shifting (RKPP) and automatic transmission (AT)
10. Transmission line
11. Steering and suspension bracket
12. Brake system
13. Body
14. Control body sizes
15. Heater and air conditioner
16. System of onboard electric equipment
16.1. General information
16.2. The general information on search of malfunctions in electric chains
16.3. Removal and installation of the storage battery
16.4. Check of a condition and replacement of wires of the battery
16.5. General information on safety locks
16.6. General information on the relay
16.7. General information about charge and precautionary measure system at work with it
16.8. Check of system of a charge
16.9. Removal and generator installation
16.10. Replacement of a regulator of tension
16.11. Check and replacement of brushes of the generator
16.12. General information about system of start of the engine and a precautionary measure
16.13. Starter check on the car
16.14. Removal and starter installation
16.15. Removal and installation of the traction relay
16.16. Check and replacement of breakers of indexes of turn and alarm system
16.17. Removal and installation of switches on a steering column
16.18. Removal and installation of the lock of ignition
16.19. Removal and radio receiver installation
16.20. Removal and aerial installation
16.21. Removal and installation of components of an instrument guard
16.22. General information on the panel of alarm lamps of a reminder on term of service (SI)
16.23. Replacement of lamps in head headlights
16.24. Adjustment of a beam of head headlights
16.25. Removal and installation of the case of a head headlight
16.26. Replacement of lamps
16.27. Removal and installation of the motor of a screen wiper of windscreen / glass of a door of a back
16.28. Check of work and repair of a heater of back glass
16.29. General information on auxiliary system of safety (SRS)
16.30. Description and check of work of a control system by speed (темпостата)
16.31. Description and check of work of system of the central blocking of doors
16.32. Description and check of work of system of electric window regulators
16.33. Diagnostics of malfunctions of a suspension bracket of back wheels
17. Routine maintenance of the car
18. Size table and adjusting data
19. Schematic electric circuits
20. Governing bodies and operation receptions
21. System of onboard diagnostics - a principle of functioning and codes of malfunctions
 








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16.4. Check of a condition and replacement of wires of the battery

Check

Periodically examine on all length each wire of the battery in search of damage, cracks or an isolation and corrosion obgoraniye. The bad condition of tips of wires can cause difficulties at start of the engine and deterioration of its work.

If the radio receiver of your car is equipped with system of protection against abduction, before shutdown of the battery be convinced that the correct code of activization is known. Before shutdown of a wire apply for information to the Section System of protection of an audiosystem from theft and language of an instrument guard.


If after battery connection on the display of the dashboard there is a message in other language, for procedure of installation of language address to the Section System of protection of an audiosystem from theft and language of an instrument guard.

Check on the ends of wires tips of accession of wires to battery plugs on existence of the cracks which have weakened a provolok and corrosion. Existence under isolation of a tip of a wire of white friable substance is a sign of corrosion and it is necessary either to clear a wire, or to replace. Check plugs on lack of a curvature, serviceability of fixing bolts and absence of corrosion.

Replacement

At a detachment of wires always the first disconnect a negative wire and attach his last. It reduces risk of casual short circuit. Even, if only the positive wire is replaced, do not forget to disconnect the first from the battery a negative wire (behind further data on removal of wires of the battery look Head Routine maintenance of the car).

 PERFORMANCE ORDER

  1. Disconnect from the battery old wires, then take away them in different directions and disconnect from the traction relay of a starter and the case. Remember laying of each wire correctly to establish subsequently.
  2. If former wires demand replacement, take them with itself in shop. Is vital to replace wires with the identical. Wires have the signs, allowing they are easy for distinguishing: the positive wire of usually red color, bigger cross-section section also has a tip of bigger diameter; the negative wire of usually black color, smaller section also have a tip for the plug of a little smaller diameter.
  3. Clear carvings of plugs of the traction relay and the case of a rust and corrosion by a wire brush.

For corrosion prevention in the future put on carvings of plugs a thin layer of inhibitor of corrosion for the battery or technical vaseline.

  1. Attach wires to plugs of the traction relay and the case and hardly tighten a nut / bolt.
  2. Before accession to the battery of a new wire be convinced that the wire without a tension gets to the plug.
  3. Attach the first a positive wire, then - negative.


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16.5. General information on safety locks