TROUBLESHOOTING 20
99
Faults
Possible cause
Action
Engine overheats
Too little coolant in cooling system
–
Check the cooling system for tightness.
–
Check the antifreeze and coolant level.
(
Too little air stream
–
Switch off the engine when standing.
Radiator fins very dirty
–
Clean the radiator fins.
Foam formation in the cooling
system
–
Drain the coolant.
–
Refill with coolant. (
Damaged cylinder head or cylin-
der head gasket
–
Check the cylinder head and cylinder head
gasket.
Bent radiator hose
–
Change the radiator hose.
White smoke development (steam
in the exhaust gas)
Damaged cylinder head or cylin-
der head gasket
–
Check the cylinder head and cylinder head
gasket.
Gear oil emerges from the vent
hose
Too much gear oil added
–
Check the gear oil level. (
Water in the gear oil
Damaged radial shaft seal ring or
water pump
–
Check the radial shaft seal ring and the
water pump.