Mercedes-Benz G-class (W463) since 1999 of release
1. Introduction
2. Governing bodies and operation receptions
3. Current leaving and service
4. Engine
5. Systems of cooling, heating, ventilation and air conditioning
5.1. System of cooling of the engine
5.1.1. Antifreeze - means of protection from freezing
5.1.2. Replacement of cooling liquid - general comments
5.1.3. Check of a cover of system of cooling, replacement of hoses of system of cooling
5.1.4. Thermostat check
5.1.5. Removal and thermostat installation
5.1.6. Removal and installation of a radiator of system of cooling
5.1.7. Removal and installation of a broad tank
5.1.8. Removal and installation of assembly of the fan of system of cooling
5.1.9. Removal and installation of the water pump
5.1.10. Removal and installation of a low-temperature cooler (М612)
5.1.11. Removal and installation of a heater of the block of the engine (at the corresponding complete set)
5.1.12. Removal and installation of an additional heater of STH (at the corresponding complete set)
5.1.13. Removal and installation of the circulating pump of an additional heater of STH (at the corresponding complete set)
5.2. Systems of ventilation, heating and air conditioning
6. A power supply system and production of the fulfilled gases
7. Systems of electric equipment of the engine
8. Automatic transmission
9. Transmission line
10. Brake and auxiliary systems
11. Suspension bracket and steering
12. Body
13. Onboard electric equipment
14. Schemes of electric connections


 







5-1-3-proverka-kryshki-sistemy-okhlazhdeniya-zamena-shlangov-sistemy-okhlazhdeniya.html

5.1.3. Check of a cover of system of cooling, replacement of hoses of system of cooling

Cover check

Check of a cover of system of cooling

And — the Cover of bayonetny type
2 — the Tester
3 — a nozzle Cover
4 — the Nozzle
5 — the Cover of system of cooling

6 — Reduktsionny the valve
In — the Cover of carving type
2 — the Tester
3а — the Nozzle
5а — the Cover of system of cooling

Design of a carving cover of two-level type

1 — the Mouth of a broad tank
2 — the Cover of system of cooling
3 — Nizhny the reduktsionny valve
4 — the Top reduktsionny valve

5 — the Vacuum valve
and — Ventilating drillings
b — Ring bore
with — the Final nipple

 PERFORMANCE ORDER

  1. Let's to the engine cool down, carefully open a cover of system of cooling, - the cover can have bayonetny (And) or carving (In) a design: the first is applied on the petrol models, the second - on diesel models. It is meaningful to stop a little in more detail on a principle of functioning of the carving cover used on models, equipped with the series 612 engine. The cover opens in two steps: at pressure increase in system to the first control value the bottom reduktsionny valve built in in a cover opens, providing access to the internal chamber of a cover. At further increase in pressure works the top reduktsionny valve and dumping of pressure it is carried out through special ventilating drillings in a mouth of a broad tank, - surplus of a gas phase arrives in ring bore of a mouth and further through a final nipple in the atmosphere. Such design allows to avoid overflow of a broad tank.

Cover of bayonetny type

 PERFORMANCE ORDER

  1. Connect a nozzle (4) with a cover (3) to a tester (2).
  2. Connect to a nozzle (4) cover of system of cooling (5).
  3. Having created demanded pressure (see. Specifications), make sure of serviceability of operation of the reduktsionny valve (6), - the valve should nestle densely on a rubber sealant (shooter) and slightly rise at a spring otpuskaniye.
  4. Faulty cover replace.

Carving cover of two-level type

 PERFORMANCE ORDER

  1. Connect to a tester (2) nozzle (3а).
  2. Screw on a nozzle a cover of system of cooling (5а).
  3. Having pumped up demanded pressure (see. Specifications), make sure of serviceability of operation of both reduktsionny valves.
  4. Faulty cover replace.

Replacement of hoses

See also Sections Check of a condition and replacement of hoses of an impellent compartment, localization of leaks and Check of functioning of system of cooling and frost resistance of cooling liquid, liquid replacement.


 PERFORMANCE ORDER

  1. The conditions of components of system of cooling revealed in the course of check (see. Head the Current leaving and service) the damaged hoses are subject to replacement without fail.
  2. Merge liquid from cooling system (see. Head Current leaving and service).
  3. Weaken and take aside fixing collars. Accurately remove a hose from reception branch pipes. If the hose does not give in to removal, try повращать it, trying not to damage a branch pipe which breakage is fraught with considerable expenses, - remember that branch pipes of a radiator are among enough fragile components! If the hose does not give in, it is necessary for cutting, - cost of a new hose is non-comparable to costs of acquisition of a replaceable radiator. Before cutting a hose, prepare a replaceable element suitable on a standard size.
  4. At installation of a new hose at first put on it collars then establish a hose on branch pipes. If collars of coupling type were initially established, replace them with the screw/worm. For simplification of installation of rigid hoses moisten internal surfaces of their ends with soap water or heat up in hot water, - in order to avoid stratifications do not lower a hose in boiling water.
  5. After hose installation on branch pipes check correctness of its laying in an impellent compartment. Establish collars for the hose ends, having got them for a razvaltsovka of branch pipes, and tighten them.
  6. Fill cooling system (see. Head Current leaving and service).
  7. Start the engine and make sure of lack of signs of development of leakages of cooling liquid from the served knot.


«previous page
5.1.2. Replacement of cooling liquid - general comments
following page»
5.1.4. Thermostat check