BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car



BMW E30
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engine
   + 3.1.2. Specifications
   + 3.2. Dismantle and capital repairs of the engine
   - 3.3. Engine electric equipment
      3.3.2. Specifications
      3.3.3. The battery - launch of the engine in emergency situations
      3.3.4. Removal and installation of the battery
      3.3.5. Power cables
      - 3.3.6. System of ignition
         3.3.6.2. Check of system of ignition
         3.3.6.3. Check and installation of the moment of ignition (only for the TCI system)
         3.3.6.4. Ignition distributor
         3.3.6.5. Ignition coil
         3.3.6.6. Shaper of impulses and block of electronic ignition
         3.3.6.7. A gap in the shaper sensor (TCI system)
         3.3.6.8. Sensors of system of ignition
      + 3.3.7. System of a charge of the battery
      + 3.3.8. System of launch of the engine
      3.3.9. Malfunctions of the generator
      3.3.10. Main malfunctions of electric equipment
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Useful tips



3.3.6.6. Shaper of impulses and block of electronic ignition

GENERAL INFORMATION

Devices of system of ignition of TCI

1. High-voltage wire of the coil
2. Ignition coil
3. High-voltage wire of a candle
4. Candle
5. Block of electronic ignition Bosch
6. Block of electronic ignition Siemens/Telefunken
7. Conducting
8. Distributor case
9. Vacuum regulator
10. Lock ring
11. Shaper of impulses
12. Plate of a rotor of the induction sensor
13. Lock ring
14. Cover
15. Runner
16. Distributor
17. Pin
18. Knot of the induction sensor and shaper of impulses
19. Bracket
20. Socket

On the considered cars blocks of electronic ignition of 2 types which externally differ by the number of sockets are installed. At the block of Bosch 1 socket, at the block of Siemens/Telefunken – 2 sockets. The shaper of impulses is mounted in the ignition distributor.

Screws of fastening of the block of ignition Siemens
The Bosch block has similar fastening.

Extraction of a plate of a rotor of the shaper


Screws of fastening of a winding of the sensor of the shaper to the lower plate


Check

PERFORMANCE ORDER
Block of electronic ignition
1. Check presence of tension of the battery at the included ignition between conclusions 2 and 4 of the disconnected socket (Bosch) or 3 and 6 (Siemens/Telefunken).
2. Check existence of a chain between a conclusion 2 and the weight (Bosch) of or 6 and the weight (Siemens/Telefunken), and also between conclusions of the socket 4 (Bosch) or 3 (Siemens/Telefunken) and a conclusion 15 on the ignition coil. If results of check unsatisfactory, then check conducting.
Shaper of impulses
3. Connect the digital voltmeter to conclusions of the socket 5 and 6 (Bosch) or between conclusions of the small socket, observing polarity of the voltmeter (on the Siemens/Telefunken block) and be convinced that at rotation of the engine the alternating voltage of 1-2 Century is a starter on these conclusions. Otherwise check conducting.
4. Check shaper resistance between conclusions of 5 and 6 (Bosch) or between conclusions of the small socket (Siemens/Telefunken) who has to be 1–1,2 kOhm.
5. If resistance differs, then replace the shaper. If resistance meets standard, and the supply voltage and a signal differ, then replace the ignition block.

Replacement

PERFORMANCE ORDER
Block of electronic ignition
1. Disconnect the socket from the block of electronic ignition, unscrew screws of fastening of the block and get the block from a motor compartment.
2. Installation is carried out upside-down. If the Bosch block changes, then paste it to the heat sink dielectric structure of Curil R2 (N according to the catalog 81 22 9 43) or silicone mastic, previously having cleared the remains of old glue a class 180 skin.
Shaper of impulses
3. Disconnect the battery from weight. Remove the ignition distributor.
4. Remove a lock ring, carefully, without allowing deformation, hook and get a shaper rotor.
5. Unscrew screws and disconnect the vacuum regulator.
6. Remove a lock ring and carefully remove the shaper with a plate.
7. Unscrew screws and remove the shaper from a plate.
8. Installation is carried out upside-down. Lay an insulating ring between a winding of the sensor of the shaper and a plate, center it before tightening screws. Adjust a gap in the sensor (see subsection 3.3.6.8).

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