1998 — 2003 of release

Repair and car operation

RX 300 Lexus
+ Lexus RX-300 Cars
+ Governing bodies and operation receptions
+ Settings and routine maintenance of the car
+ Engine
- Systems of cooling of the engine, heating, ventilation and air conditioning
   - System of cooling of the engine
      General information and precautionary measures
      Removal, check and installation of the water pump
      Removal, check and thermostat installation
      Check of components of system of cooling
      Removal and installation of a radiator and fans
   + Systems of heating, ventilation and air conditioning
+ the Power supply system and production of the fulfilled gases
+ Systems of electric equipment of the engine
+ Automatic transmission and interaxal differential
+ Transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schematic diagrams of electric connections

Removal, check and thermostat installation

Removal of the thermostat can adversely affect engine cooling therefore do not remove the thermostat if in it there is no need.

Components of installation of the thermostat

1 — the No. Д/В Socket of 2 ECT
2 — the Reception branch pipe
3 — Laying
4 — the Thermostat

5 — Protection of electroconducting of the engine
6 — the Sealing ring
7 — the Submitting tube of OZh


  1. Empty cooling system (see. The section Replacement of cooling liquid (OZh)).
  2. Remove air purifier assembly (see. Section Removal and air purifier installation).
  3. Disconnect protection of electroconducting of the engine against a reception branch pipe and against the right number of cylinders.
  4. Turn out a bolt and disconnect submitting tube of OZh from a reception branch pipe and from the left number of cylinders. Remove a sealing ring of a tube.
  5. Give three nuts and remove a reception branch pipe and the thermostat. Remove laying from the thermostat.
  6. Lower the thermostat in heated-up water and check temperature of opening of its valve – it should make 80 ÷ 84 hail.

The temperature of opening of the thermostat is beaten out on its case.

  1. Continuing to heat up water, check size of shift of the valve from its initial situation – at temperature the 95th hail. the valve should be displaced not less, than on 10 mm.
  1. Make sure of completeness of closing of the valve of the thermostat at temperature the 40th hail.
  2. If though one of checks is not passed, replace the thermostat
  1. Establish new laying of the thermostat and level its valve with the top hairpin with a margin error no more the 15th hail.
  1. Establish acting in film components as it should be, the return to an order of their dismantle. Use a new sealing ring of a submitting tube of OZh, tighten fixture with demanded efforts.