CHECKING COOLING SYSTEM FOR LEAKS Mount Special Tool 17 0 000 on expansion tank. Build up about 1 bar (14 psi) pressure in cooling system with manual pump. Cooling system is fully tight, if there is no drop in pressure for about 1 to 2 minutes. | |
Mount radiator cap and tester on adapter and build up pressure with manual pump. | |
Opening pressure must agree with data in Specifications. | |
Check for leaks between combustion chamber and cooling system with "cylinder head gasket tester", HWB No. 81 24 9 400 168. | |
Vehicles after change point in 1982 CHECKING COOLING SYSTEM FOR LEAKS Applay Special Tool 17 0 002 (with adapter 17 0 003 for screw-on cap) and produce 1 bar (14 psi) pressure. Cooling system does not leak, if there is no considerable prssure drop (approx. 0.1 bar or 0.7 psi) after waiting about 2 minutes. | |
Checking Cooling System Bayonet Cap: Assemble adapter 17 0 001, cap and tester 17 0 002. Check opening pressure* of safety valve. * See Specifications | |
Checking Cooling System Screw-On Cap: Assemble adapter 17 0 003, connector 17 0 004, cap (1) and tester 17 0 002. Check opening pressure* of safety valve. * See Specifications | |
Lift vacuum valve slightly and check for correct fit. Check gasket, replacing if necessary. |