Check of work and repair of a heater of back glass. BMW the 5th E28/E34 series (from 1981 to 1993 of release)
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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
 








16-28-proverka-raboty-i-remont-obogrevatelya-zadnego-stekla.html

16.28. Check of work and repair of a heater of back glass

The heater of back glass consists of several horizontally located elements on a glass surface.

It is possible to eliminate small damages to an element, without removing some back glass.

Work check

 PERFORMANCE ORDER

  1. Include ignition and a heater of back glass.
  2. Place positive щуп the voltmeter on the element of a heater closest to the power supply.
  3. Wrap up a piece of an aluminum foil round negative щупа the voltmeter on a positive side of allegedly faulty element and slowly advance щуп in the direction to its negative side. Watch a voltmeter arrow - when it will move from a zero point, in this place there is a rupture of an element.

Repair

Repair is made directly on a place with use of the repair set recommended specially for this purpose, such, as a repair set of BMW No. 81 22 9 (or its equivalent). The structure of this set includes plastic carried-out epoksidny pitch. The general instructions on this type of repair below are provided; if the instructions attached to a repair set, disperse with mentioned below, follow instructions in a set.

 PERFORMANCE ORDER

  1. Before starting element repair, switch off it and let's cool down within several minutes.
  2. Slightly smooth out an element surface by means of a thin skin, then carefully clear it.
  3. With sticky tape stick a repaired site, having left a crack for drawing of epoksidny pitch.
  4. Carefully mix epoksidny pitch, following instructions on packing.
  5. Put an epoksidny material on the crack left in a sticky tape, blocking the intact site approximately on 20 mm from each party.
  6. Leave the repaired site to stiffen at 24 o'clock before removal of a tape and use of a heater of back glass.


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16.27. Removal and installation of the motor of a screen wiper of windscreen / glass of a door of a back
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16.29. General information on auxiliary system of safety (SRS)