3.36. Replacement of a cooler

Replacement of a cooler (each 90 000 km or 3 years)

Draining of cooling liquid of the cooling system

Before starting this procedure, let's the engine cool down. Do not allow hit of antifreeze on skin or on the painted surfaces of the car. In case of hit it on the specified surfaces immediately wash away it a plentiful amount of water. Never leave antifreeze, lying in easily available places in an open container - antifreeze is extremely poisonous.


1. After full cooling of the engine unscrew and uncover a jellied mouth of a broad tank. Turn a cover on several turns counterclockwise, then wait some time, having given the chance of dumping of pressure in system. After that completely unscrew and uncover.
2. Cock the emergency brake, then a poddomkratta the car in front and behind and establish it on axial props (address Poddomkrachivaniye's Section, towage and change of wheels.
3. Remove the central panel in the bottom of a radiator. Unscrew the holding bolts and exempt the panel from clips.
4. Establish the drain capacity of the corresponding volume under the lower right part of a radiator.
5. Give a drain stopper in the lower tank of a radiator and allow a cooler to flow out in a container.
6. When the stream of a cooler stops, transfer drain capacity under a drain stopper of the block of cylinders. On engines with a balancing shaft there are 2 such stoppers, one is located in a forward left part of the block of cylinders, and another in its back left part. Having removed a stopper (traffic jams) allow a cooler to flow out from the block of cylinders.
7. Establish into place and tighten drain traffic jams of a radiator and the block of cylinders.
8. If the cooler merged for any other purpose, except its replacement, then in case it is pure and was in application less, than 3 years, it can be reused.

Washing of the cooling system

In case the cooler did not change in the corresponding interval of time or in case of decrease in density of antifreeze overall performance of the cooling system falls, as a result of education on walls of cooling channels of a rust and a scum, and also other deposits. It is possible to restore overall performance of the cooling system by its washing.

In order to avoid unnecessary pollution, the radiator has to be washed out separately from the engine.

Washing of a radiator


1. For washing of a radiator for a start disconnect the top and lower hoses of a radiator.
2. Insert a garden hose into the top branch pipe of a radiator. Send a pure stream to a radiator and continue to wash out a radiator until from the lower opening of a radiator clear water does not pour down.
3. If for an appreciable length of time dirty water continues to follow from a radiator, then it is necessary to make washing of a radiator with the special cleaning agent such as Holts Radflush or Holts Speedflush.
4. It is extremely important to follow instructions of the manufacturer in detail. In case of strong pollution remove a radiator and, having inserted a hose into the lower reception opening of a radiator, make antiline washing of a radiator.

Washing of the engine


1. For washing of the engine at first remove the thermostat as it is described in the Head of the Cooling system, heating, then temporarily establish into place a thermostat cover.
2. After a detachment from a radiator of the top and lower hoses, insert a garden hose into the top hose of a radiator. Direct a pure stream via the engine and continue washing of the engine until from the lower hose of a radiator clear water pours down.
3. After completion of washing install into place the thermostat and connect hoses according to the instructions given in the Head of the Cooling system, heating.
4. Make sure that drain traffic jams of a radiator and the block of cylinders are established into place and hardly tightened.
5. Take drain capacity from under the car, then install into place the lower central panel of a radiator and lower the car on the earth.

Filling of the cooling system


1. Before starting filling of the cooling system, make sure that all hoses and clips are in good shape and that clips are strong tightened. Pay attention that antifreeze has to be used in the cooling system during the whole year in order to avoid emergence of corrosion of components of the engine.
2. Pour the required amount of antifreeze (address the Section Types and volumes of the applied lubricants and liquids) in a container, then add water so that ready mix in volume of 6.5 liters turned out.
3. Slowly fill in the cooling system through a jellied mouth of a broad tank, allowing air to go out of cooling channels. Pour liquid to a mark at most in a wall of a broad tank.
4. Establish into place and tighten a cover of a broad tank.
5. Start the engine and let's it work on turns of bystry idling until joins and again the cooling system fan will not be switched off. At the same time, the air which remained in system, has to quit the system. Stop the engine.
6. Let's the engine cool down, then again check cooler level according to the instructions given in the Section of Check of levels of liquid of this Chapter. Make if necessary a cooler dolivaniye. SAAB recommends to make repeated check of level of a cooler several days later and if necessary to make its dolivaniye.

The cooling mix

Antifreeze surely has to be replaced through the required periods. It is necessary not only for respect for frost-resistant properties of antifreeze, but also for the prevention of corrosion because of loss of efficiency of the corrosion inhibitor which is a part of antifreeze.

Antifreezes on the basis of ethylene glycol which is ideal for the cooling system consisting of various metals are used. The payment progress of antifreeze and anticorrosive additives is specified on packing.

Before antifreeze addition the cooling system has to be completely merged, washed preferably out, and all hoses are checked for a state and reliability of fastening.

After an antifreeze flood it is necessary to attach a label on which the type and concentration of the used antifreeze, and also date of its filling have to be specified to a jellied mouth of a broad tank. All further dolivka in the cooling system have to be carried out by a cooler of the same type and the same concentration.

Do not apply antifreeze to addition it in system of windscreen washer of a windshield and glass of a back door, it can lead to damage of the painted body surfaces. It is necessary to add such screen wipers as Turtle Wax High Tech Screen Wash in the quantities specified on a bottle to system of windscreen washer.