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
   8.9. 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






8.5. Thermostat

Removal

Removal of a hose of cooling liquid from a thermostat casing on models with 4-cylinder petrol engines

Removal of a cover of the thermostat

Removal of laying from a thermostat casing

Thermostat extraction from a thermostat casing

PERFORMANCE ORDER
1. The thermostat is established in a casing which fastens bolts to lateral face of the water pump.
2. Remove a weight wire from the accumulator and merge cooling liquid from cooling system.
3. Weaken a collar and remove a hose of cooling liquid from a thermostat casing (see fig. Removal of a hose of cooling liquid from a thermostat casing on models with 4-cylinder petrol engines).
4. Unscrew bolts and uncover the thermostat. If the cover does not act in film, knock on it, but at all do not insert a screw-driver between a cover and a thermostat casing (see fig. Removal of a cover of the thermostat).
5. Remove laying and, having noted an arrangement, take the thermostat from a casing (see fig. Removal of laying from a thermostat casing, thermostat Extraction from a thermostat casing).

Check

PERFORMANCE ORDER
1. Rough check of the thermostat can be made, having suspended it on a thread in the glass vessel filled with water, and heating up water to boiling. When boiling water the thermostat should open, otherwise replace it.

Installation

PERFORMANCE ORDER
1. Clear interfaced surfaces of a cover and a thermostat casing.
2. Establish the thermostat in a casing so that its party with a spring was directed to a casing. On models with the diesel engine the ledge on a cover of a casing should enter into a groove on the thermostat. On models with the petrol engine establish the thermostat so that the valve of removal of air was in the highest point.
3. Establish laying on a thermostat casing.
4. Establish a cover of the thermostat and screw up fastening bolts, having tightened them the demanded moment.
5. Connect to a thermostat cover a hose of cooling liquid.
6. Fill in in cooling system cooling liquid.