Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
+ ENGINE
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
+ 7. Major maintenance of engines
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
- 16. System of ignition of four-cylinder petrol engines
   16.2. General information
   16.3. Check of system of ignition
   16.4. Ignition coil
   16.5. Distributor of ignition and distributor rotor
   16.6. Check and adjustment of a corner of an advancing of ignition
   16.7. Elements of a control system of ignition
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






16.4. Ignition coil

SYSTEM OF IGNITION OF EZL

Removal

Removal of a plastic casing from the ignition coil

Places of connection of wires to the ignition coil
A–place of connection of the central high-voltage wire;

B–a place of connection of wires to primary winding of the coil of ignition


Arrangement of coils of ignition on models with a control system of the HFM engine
A–ignition coils;

B–protective casing


PERFORMANCE ORDER
1. Remove a weight wire from the accumulator.
2. On all models the coil of ignition is established on an arm in the left forward part of a motor compartment. Release clamps and remove a plastic casing from the top part of the coil of ignition (see fig. Removal of a plastic casing from the ignition coil).
3. Disconnect the central high-voltage wire from the central contact of the coil of ignition (see fig. Places of connection of wires to the ignition coil).
4. Unscrew nuts and disconnect positive and negative wires from plugs of primary winding of the coil of ignition. Before removal mark wires.
5. Unscrew bolts and remove the ignition coil.

Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal.

MODELS WITH THE CONTROL SYSTEM OF THE HFM ENGINE

Removal

Arrangement of coils of ignition and their connection with cylinders which serve them
A–cylinders No. 2 and 5;

B–cylinders No. 3 and 4;

C–cylinders No. 1 and 6;

D–to the ECU block from cylinders 1-6


PERFORMANCE ORDER
1. Three coils of ignition are established on a cover of a head of the block of cylinders under a casing. In drawing Arrangements of coils of ignition and their connection with cylinders which serve them are shown an arrangement of coils of ignition and cylinders which they serve.
2. Remove a weight wire from the accumulator.
3. Unscrew screws and uncover, closing ignition coils. Disconnect high-voltage wires and wires of primary windings from ignition coils.
4. Unscrew screws and lift the ignition coil from a cover of a head of the block of cylinders, at the same time disconnecting a high-voltage wire from a spark plug.

Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal.