As a cooling liquid the standard liquid (antifreeze) — a mix of water and этиленгликоля is applied. Anticorrosive additives containing in antifreeze interfere with formation in system of cooling of a rust and a scum.

The prevention At the reference with antifreeze it is necessary to remember that it is poisonous and causes a strong poisoning.

Company "Volkswagen" fills system of cooling of the engines with the concentrated antifreeze G11, and, since 1999, instead of G11 applies antifreeze G12 which can be identified on the colour which has become red instead of the green.

The prevention Antifreezes G11 and G12 in no event cannot be mixed, as they are incompatible.

Company "Ford" fills system of cooling of the engines with antifreeze «Motorcraft Super Plus 4».

Antifreeze should be in cooling system all year long. If it is necessary to dilute antifreeze with water it is necessary to observe following proportions:

- Border of freezing to–25 ° C:

- With one heat exchanger — 3,6 l of antifreeze on 5,4 l of water;

- With two heat exchangers —       4,5 l of antifreeze on 4,5 l of water;

- With two heat exchangers and an additional heater — 4,6 l of antifreeze on 6,8 l of water;

- Border of freezing to–35 ° C:

- With one heat exchanger — 4,3 l of antifreeze on 6,5 l of water;

- With two heat exchangers — 5,4 l of antifreeze on 5,4 l of water;

- With two heat exchangers and an additional heater — 5,7 l of antifreeze on 5,7 l of water.

It is necessary to prepare a mix in a watering can or other similar vessel for water and to fill in its already ready in cooling system. Often in cooling system at first fill in antifreeze, and then add water, but the mix is thus formed not at once as it should be banished before some times on cooling system by the water pump.

The prevention At разбавлении antifreeze water application sea or hard water and alkali for water softening is inadmissible.

The note (2,0 l and VR6) join systems of cooling of both engines identical quantity of a cooling liquid.

Fig. 185. Check of tightness of system of cooling by means of delivery pump VW1274

Check of tightness of system of cooling should be spent by means of delivery pump VW1274 (fig. 185).

Establish delivery pump VW1274 on a broad tank (fig. 185 see), finish pressure to 1,0 atmospheres and check up, that it remained a minimum within 2 minutes If it does not occur, means, in cooling system there is a leak of a cooling liquid. In this case check up the following: