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
   8.2. General information
   8.3. Hoses of system of cooling
   8.4. Radiator
   8.5. Thermostat
   + 8.6. Radiator fan
   8.7. Electric sensors
   - 8.8. Water pump
      8.8.2. Models with six-cylinder petrol engines
      8.8.3. Diesel models
   8.9. Heating and ventilation system
   + 8.10. Elements of system of heating
   8.11. Air central air
+ 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
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






8.8. Water pump

8.8.1. Models with 4-cylinder petrol engines

Removal

Arrangement of collars of fastening of a by-pass hose

Detachment of a bypass hose and removal of a casing of the thermostat

Fastening of the bottom hose of a radiator and returnable hose of a heater to the water pump

Arrangement of the left bolts of fastening of the water pump

Removal of the water pump from the engine

PERFORMANCE ORDER
1. Remove a weight wire from the accumulator and merge cooling liquid from cooling system.
2. Remove the fan of a radiator and a pulley of an auxiliary driving belt from the water pump.
3. Remove the thermostat, then unscrew a thermostat casing from a head of the block of cylinders. Weaken collars and disconnect by-pass a hose from the water pump and remove a thermostat casing from the engine (see fig. Arrangement of collars of fastening of a by-pass hose, Detachment of a bypass hose and removal of a casing of the thermostat).
4. Weaken collars and disconnect a hose of the bottom tank of a radiator and a returnable hose of a heater from the water pump (see fig. Fastening of the bottom hose of a radiator and a returnable hose of a heater to the water pump).
5. Weaken a collar and disconnect an auxiliary hose from the left side of the water pump.
6. On early models with several auxiliary driving belts remove the electromagnetic coupling from an axis of the water pump.
7. On late models with one auxiliary driving belt disconnect from the electromagnetic coupling электричес a cue the socket and release wires from fastening brackets.
8. Remove the generator and unscrew an arm of fastening of the generator from the water pump.
9. Unscrew bolts and remove the water pump from the engine (see fig. Arrangement of the left bolts of fastening of the water pump, Removal of the water pump from the engine). Note an arrangement of bolts as they have various length.

Installation

Installation of new laying of the water pump

PERFORMANCE ORDER
1. Being careful, clear interfaced surfaces of the water pump and the block of cylinders of traces of old laying. Similarly clear interfaced surfaces of a casing of the thermostat and a head of the block of cylinders.
2. Establish the water pump with new laying in sequence, return to removal (see fig. Installation of new laying of the water pump). Establish and adjust a tension of auxiliary driving belts. Fill in cooling liquid in cooling system.