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5.1.5. Removal and installation of the thermostat

Petrol models

Details of installation of assembly of the thermostat on petrol engines

1 — a thermostat Casing
2 — the Sealing ring
3 — Fixing bolts

4 — the Collar
5 — the Hose of a cooling path
6 — the Radiator

 PERFORMANCE ORDER

  1. Empty the cooling system (see the Head the Current leaving and service).
  2. Remove the panel of finishing of the power unit / assembly of the air cleaner.
  3. Disconnect a hose of a cooling path (5).
  4. Turn out fixing bolts (3) and remove a casing of the thermostat (1) assembled with a working element.

In order to avoid irreversible damages the working element should not be taken from a cover, - in case of need replacement of an element is made assembled with the last!

  1. Installation is made upside-down. Do not forget to replace a sealing ring (2), track that fixture was tightened with the required effort.
  2. In conclusion check the cooling system for existence of signs of development of leaks.

Diesel models

M612

Details of installation of the thermostat and the sensor of temperature of cooling liquid on the diesel engine of a series 612

1 — the Hose of a cooling path
2 — the Ventilating hose
3 — a thermostat Casing

4 — the Connecting union
B11/4 — the Sensor of temperature of cooling liquid

 PERFORMANCE ORDER

  1. Remove protection of a case.
  2. Empty the cooling system (see the Head the Current leaving and service).
  3. Remove panels of finishing of a cover of a head of cylinders.
  4. Disconnect an electrical wiring from the sensor of temperature of cooling liquid (B11/4).
  5. Disconnect from a thermostat casing (3) lines cooling (1) and ventilating (2) paths, - check a condition of fixing collars, in case of need prepare replacement.
  6. Remove a casing of the thermostat (3), - pay attention to adjusting position of the connecting union (4), prepare new sealing laying.
  7. Installation is made upside-down.
  8. In conclusion check the cooling system for existence of signs of development of leaks.

M628

Details of installation of the thermostat on the diesel engine of a series 628

1 — the Hose of a cooling path (ventilation)
2 Ventilating line
3 — the Fuel filter
4 — the Top air duct
5 — the Hose of a cooling path
6 — a thermostat Casing
6a — the Sealing ring
7 — the Hose of a cooling path
7a — the Connecting union on a casing of an oil filter

8 — the Line of a cooling path
8a — the Connecting union on an engine case
8b — the Connecting union on a casing of an oil filter
9 — the Hose of a cooling path
10 — the Basic arm of a cooler of air of pressurization
10a — Bolts
11 — the Hose of a cooling path
12 — a pressurization air Cooler

 PERFORMANCE ORDER

  1. The car also establish to Poddomkratta it on props.
  2. Empty the cooling system (see the Head the Current leaving and service).
  3. Remove the air cleaner.
  4. Remove a cooling system fan casing (see the Section Removal and installation of assembly of the fan of the cooling system).
  5. Install the screen of protection of the radiator/condenser of the air conditioning system (the metal or plastic plate of 400x680x1 mm in size equipped with a suitable basic arm).
  6. Remove the fuel filter (3) (see the Head the Current leaving and service), - at installation the filter will be reasonable to be replaced.
  7. Disconnect a hose of a cooling path (1) from the ventilating line (2), - check a condition of a fixing collar, in case of need prepare replacement.
  8. Disconnect a hose of a cooling path (11) from a cooler of air of pressurization (12), - check a condition of a fixing collar, in case of need prepare replacement.
  9. Remove the actuation mechanism of the drive of a butterfly valve assembled with the top air duct (4).
  10. Disconnect a hose of a cooling path (5) from a casing of the thermostat (6), - check a condition of a fixing collar, in case of need prepare replacement.
  11. Disconnect a hose of a cooling path (7) from the union (7a) of the operating valve of system of ventilation of a case, - check a condition of a fixing collar, in case of need prepare replacement.
  12. Having disconnected from unions (8a and 8b) and a hose (9), remove the line of a cooling path (8).
  13. Remove a basic arm (10) of a cooler of air of pressurization, - for the purpose of ensuring access to a fixing bolt (10a) hook the screw-driver (shooter) and wring out a hose (9) aside.
  14. Remove a casing of the thermostat (6) assembled with a working element.
  15. Installation is made upside-down.
  16. In conclusion check the cooling system for existence of signs of development of leaks.