900 SE Hatchback L4-1985cc 2.0L DOHC Turbo EFI (1997)
Cylinder Head Gasket: All Technical Service Bulletins
Cylinder Head Gasket - Coolant Leak
SI No. 260-1966
PI No.
Date June 1998
Distr. all
900
Coolant leak from cylinder head
Cars affected
All M94-with 4-cylinder engines
Background
It is often difficult to localize a coolant leak correctly, as the coolant will spread over a large area. It can therefore appear as though the leak originates
from the cylinder head gasket, despite the leak being in a completely different place.
This Service Information contains tips on the areas to inspect in the event of a coolant leak, especially if the cylinder head gasket is suspected as being
the cause.
Procedure
Check coolant hoses and hose clamps between the radiator and the thermostat housing as well as between the thermostat housing and the heat exchanger.
In addition, the thermostat housing gasket and intake manifold gasket must be checked. Proceed as follows:
1
Connect cooling system tester 30 05 477 together with a suitable adapter and pressurize the cooling system to 1.2 bar.