Volkswagen Passat 1995 Official Factory Repair Manual page 386

Cooling system
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Cooling system
General information
WARNING!
When the engine is hot, the cooling system is
under pressure. If it is necessary to open the
cooling system, do so slowly to relieve
pressure gradually before starting repairs.
Note:
Hose connections are secured with spring-type
or screw-type clamps.
Use clamp pliers, Hazet 798-5 or equivalent, to
remove and install spring-type clamps.
During repairs, spring-type clamps may be
replaced with screw-type clamps.
Draining and filling procedures and water/anti-
freeze coolant mixture ratios
For leak tests of cooling system use VAG 1274
and 1274/3.
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