Date of issue 10/97 Bulletin Number 303-15 Page 1 of 3
Cooling System Bleed Lines –
Correct Routing – Model Year Differences
There are differences between the routing of the cooling system bleed lines between 1997 Model
Year vehicles and 1998 Model Year vehicles. Incorrect routing at the coolant reservoir
connections could lead to air remaining trapped in the cooling system, resulting in overheating of
In case of a customer complaint of engine overheating on an XK8, check that bleed lines are
correctly routed as detailed below.
1997 Model Year Condition VIN 001001 - 018107
• Reservoir: Part No. MJA 4400AC for 1997 MY only.
• Bleed line R, Illustration 1, from radiator is connected to front fitting on reservoir
• Bleed Line T from thermostat is connected to rear fitting on reservoir.
1997 MY HOSE ROUTING