Audi 100

1982-1990 of release

Repair and operation of the car

Audi 100
+ 1.1. Governing bodies and devices
+ 2. Technical characteristics
+ 3. Engines
+ 4. Cooling system
+ 5. Exhaust system
+ 6. Power supply system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
+ 10. Brake system
+ 11. Body
- 12. Electric equipment
   + 12.1. System of electric equipment
   - 12.2. System of ignition
      - 12.2.1. Transistor system of ignition
         12.2.1.1. Removal and installation of the distributor of ignition
         12.2.1.2. Dismantling and assembly of the distributor of ignition
         12.2.1.3. Check and adjustment of a corner of an advancing of ignition
         12.2.1.4. Check of the coil of ignition
         12.2.1.5. Check of the switchboard
         12.2.1.6. Check of the sensor of the Hall
         12.2.1.7. Check of spark plugs
      + 12.2.2. Electronic system of ignition
      12.2.3. Contactless system of ignition of FEI
   + 12.3. Electric circuits

12.2.1.4. Check of the coil of ignition

GENERAL INFORMATION

The coil of ignition fails very seldom. Check the coil an ohmmeter, measuring resistance of primary and secondary windings.

PERFORMANCE ORDER

1. To disconnect a wire from the "minus" plug of the battery.

2. To disconnect wires from the coil.

3. To examine the coil. If on the coil there are cracks or a cap in the top part of the coil is pushed out, it needs to be replaced.

4. For check of resistance of primary winding to connect an ohmmeter to plugs 6 and 4 (see rice. Elements of transistor system of ignition). Resistance has to be 0,5–0,8 Ohms.

5. For check of resistance of a secondary winding to connect an ohmmeter to plugs 4 and 5 (see rice. Elements of transistor system of ignition). Resistance has to be 2,4–3,5 kOhm.