Cooling System: Testing and Inspection

Checking the cooling system

Special tools:
998 5496 ENGINE COOLANT SYSTEM - PRESSURE TESTER 998 5496 Engine Coolant System - Pressure Tester

Leak testing the cooling system





Test pressurizing the cooling system
Use pressure gauge 998 5496 ENGINE COOLANT SYSTEM - PRESSURE TESTER 998 5496 Engine Coolant System - Pressure Tester.
Connect the pressure tester to the coolant reservoir.
Pump up the pressure. Check for leaks.
- Maximum permissible pressure 150 kPa.

Note! B4184SM, maximum permissible pressure: 90 kPa.

- The pressure in the system must be steady. It must not fall noticeably within 30 seconds.

Note! Allow the pressure to even out for a couple of minutes.

Check the cooling system for leakage.

Gauging the pressure in the filler cover
- Only the filler cover on B4184SM is white. All other models have black filler covers.