E30 series BMW 3

since 1983-1994 of release

Repair and car operation

+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engine
   + 3.1.2. Specifications
   + 3.2. Dismantle and major maintenance of the engine
   - 3.3. Engine electric equipment
      3.3.2. Specifications
      3.3.3. The battery - engine start-up in emergency situations
      3.3.4. Removal and battery installation
      3.3.5. Power cables
      - 3.3.6. Ignition system Check of system of ignition Check and installation of the moment of ignition (only for TCI system) Ignition distributor Ignition coil Shaper of impulses and block of electronic ignition A gap in the shaper sensor (TCI system) Sensors of system of ignition
      + 3.3.7. System of a charge of the battery
      + 3.3.8. System of start-up 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. Good advice

4d3121b2 Ignition coil


Details of system of ignition of TCI

1. Coil wire
2. Ignition coil
3. Tip of a high-voltage wire
4. Candle
5. Electronic block of ignition (Bosch)
6. Electronic block of ignition of Siemens/Telefunken)
7. Burn down conductings
8. The distributor case with грузиками a centrifugal regulator
9. Vacuum regulator
10, 15. Spring ring
11. Bracket
12. Socket of the shaper of impulses
13. Shaper of impulses
14. Rotor plate
16. Dustproof screen
17. Begunok
18. Rotor teeth
19. Pin
20. Distributor cover

On cars with Motronic system malfunction of the processor ECU block can become the reason of failure of the coil of ignition. If there are suspicions on malfunction of the block at refusal of start of the engine, it is necessary to check the coil.

Check and replacement

1. Designate and disconnect wires from the ignition coil.
2. Remove the coil and check a condition of the case, an insulator and contacts.
3. Measure resistance of primary winding coils (TCI system).
4. On a part of Motronic systems for measurement of resistance of primary winding remove a coil cap.
5. Measure resistance of a secondary winding. Resistance of a secondary winding is measured in TCI system between a conclusion 1 (-) and a high-voltage conclusion.
6. Resistance of a secondary winding is measured in Motronic system between conclusions 15 (+) coils and a high-voltage conclusion.
7. If resistance considerably differ from standard (resistance change depending on temperature is admissible), the coil of ignition replace.
8. The coil is established upside-down.