Fig. 193. Parts of the case of the thermostat and the thermostat: 1 — the thermostat case; 2 — a bolt with internal шестигранником, 10 Н·м; 3 — the thermostat; 4 — a cover of the case of the thermostat; 5 — a bolt with internal шестигранником, 10 Н·м; 6 — an O-shaped sealing ring; 7 — a case cover; 8 — the temperature switch (deenergizing of the conditioner and the third step of the fan), black colour; 9 — the temperature gauge of system of injection Motronic, dark blue colour; 10 — the temperature gauge of inclusion at the fan of a mode of cooling of the engine after its stop, yellow colour; 11 — a collar

The thermostat 3 (fig. 193) is in the separate case of 1 thermostat in which except the thermostat two temperature gauges settle down: the gauge of 9 temperatures of a cooling liquid and the gauge of 10 inclusions of the fan of system of cooling at the idle engine.

Fastening of three temperature gauges in the thermostat case is a little unusual. They not привернуты, and fasten spring clips which are necessary for opening by means of a screw-driver, in case of removal of gauges. Temperature gauges have O-shaped sealing rings thanks to which demanded tightness is provided. Штекерные колодки if they are disconnected, it is impossible to mix, as they of different colour; at the gauge of temperature of a cooling liquid двухштырьковый a socket, and at the gauge of inclusion of the fan of system of cooling at the idle engine — четырехштырьковый a socket.

The thermostat is located under a cover 4 (to which the hose is attached) with an O-shaped sealing ring 6.

Removal of the thermostat of engine VR6 spend as follows:

- Open a cover of a broad tank;

- Merge cooling liquid at least to level of installation of the thermostat (about 4 l of a cooling liquid);

- Disconnect a hose from a cover of the thermostat and uncover;

- Take the thermostat.

The thermostat is not subject to repair and consequently at its malfunction it is necessary to change.

Check of working capacity of the thermostat is spent in the same way, as for the thermostat of the 2,0-litre engine. It is necessary to replace the faulty thermostat.

At thermostat installation:

- Use a new sealing ring;

- Check up a hose clip before again it to tighten on a hose;

- Fill in cooling liquid in cooling system.

If details from the thermostat case at their installation observe following recommendations acted in film:

- Establish the case of the thermostat with a new sealing ring on the engine and tighten long bolts 2 (above, fig. 193 see) the moment 10 Н·м;