Note: See also Section Checking the condition and replacing engine compartment hoses, localizing leaks.
1. Identified during the inspection of the condition of the components of the cooling system (see Chapter cooling system) damaged hoses must be replaced without fail.
2. Drain the cooling system (see Chapter Checking the cooling system and frost resistance of the coolant, replacing the liquid).
3. Loosen and move aside the fastening clamps. Carefully remove the hose from the inlet pipes. If the hose does not come off, try to rotate it, trying not to damage the pipe, the breakage of which is fraught with significant costs, remember that radiator pipes are quite fragile components! If the hose does not give in, it must be cut - the cost of a new hose is incomparable with the cost of purchasing a replacement radiator. Before cutting the hose, prepare a replacement element of a suitable size.
4. When installing a new hose, first put the clamps on it, then install the hose on the nozzles. If clamps of the compression type were originally installed, replace them with screw-type ones. To facilitate the installation of rigid hoses, wet the inner surfaces of their ends with soapy water or heat them in hot water (do not put the hose in boiling water - it may delaminate).
5. After installing the hose on the pipes, check that it is correctly laid in the engine compartment. Install clamps on the ends of the hose, placing them behind the flared pipes, and tighten them.
6. Fill the cooling system (see Chapter Checking the cooling system and frost resistance of the coolant, replacing the liquid).
7. Start the engine and check for coolant leaks from the serviced unit.
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