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. System of ignition of 4-cylinder petrol engines

16.1. Technical characteristics

Type of system of ignition

Models with engines of 2,6 l of SOHC
EZL
Models with engines of 3,0 l of SOHC
EZL
Models with engines of 2,8 l of DOHC
HFM
Models with engines of 3.0 l of DOHC
EZL with anti-detonation system
Models with engines of 3,2 l of DOHC
HFM

Ignition coil

Models with system of ignition of EZL:
– resistance of primary winding
Less than 1,0 Ohm
– resistance of a secondary winding
8–13 Ohm
Models with a control system of the HFM engine:
– resistance of primary winding
0,3-0,6 Ohm
– resistance of a secondary winding
5,2-8,5 Ohm

Ignition distributor


Type
Without the breaker, with a drive from a cam-shaft
Corner of an advancing of ignition
Copes a control system of the engine

Corner of an advancing of ignition

Only models with system of ignition of EZL:
– on idling turns
7–11 ° to VMT
– at 3200 rpm with vacuum, a cap in a fine tuning nest in the situation "S"
25-29 ° to VMT
– at 3200 rpm with vacuum, a cap in a fine tuning nest in the situation "N"
19-23 ° to VMT
– at 3200 rpm without vacuum
40-44 ° to VMT

Spark plugs

Models with DOHC engines
Champion S10YC/CC
Models with SOHC engines
Champion C10YC/CC
Interelectrode gap
0,8 mm

Sensors

Resistance of the sensor of provision of a cranked shaft
680-1200 Ohm
Resistance of the sensor of provision of a camshaft
900-1600 Ohm
Resistance of the sensor of temperature of cooling liquid:
– at temperature 80 ° With
325 Ohm
– at temperature 40 ° With
1,2 kiloohms
– at temperature 0 ° With
6 kiloohms
Resistance of the sensor of temperature of air arriving in the engine:
– at temperature 80 ° With
325 Ohm
– at temperature 40 ° With
1,2 kiloohms
– at temperature 0 ° With
6 kiloohms

Tightening moments

Screws of fastening of a rotor of the distributor
3 Nanometers
Bolt of fastening of a flange of a drive of a rotor of the distributor:
– bolt М8
20 Nanometers
– bolt М6
15 Nanometers
Bolt of fastening of the sensor of a detonation
20 Nanometers
Spark plugs:
– models with SOHC engines
15 Nanometers
– models with DOHC engines
25 Nanometers