XK-8 Convertible (X100) V8-4.0L (AJ26) (1997)
Technical Service Bulletin # 303-11
Date: 970601
Heater - Poor Performance
303-11
DATE
6/97
XK8
MODEL
1997 MY-ON
XK8 Range
VIN
001036-010342
Poor Heater Performance - Coolant Specification Change - Service Action S 813
Issue:
Some 1997 MY XK8 vehicles within the above VIN range may experience reduced heater performance caused by reduced coolant flow through the
heater core resulting from deterioration of the coolant solution. The old coolant is blue/green in color.
To correct this condition, XK8 vehicles starting with VIN 010343, are factory filled with a new coolant, D542, which is yellow in color.
This bulletin provides the procedure to follow on vehicles within the above VIN 001036-010342. A new radiator flushing tool (100-020) has been
developed to assist coolant flushing during the procedure. This tool has been issued as part of the essential tool program.
Action:
On XK8 vehicles within the above VIN range, perform the following procedures according to the vehicle VIN, either at dealership level PDI or at the
next service visit. In case of a customer complaint of poor heater performance, arrange for an appointment as soon as possible.
VIN 001036-005957
Perform heater performance test. If the test indicates poor heater output: Perform a chemical flushing. Flush existing blue/green c
VIN 005958-010342
Flush existing blue/green coolant from cooling system with water and refill with yellow coolant.
The following procedures are described in this bulletin:
A.
HEATER PERFORMANCE TEST
B.
CHEMICAL FLUSHING PROCEDURE
C.
COOLANT FLUSHING PROCEDURE
D.
REFILLING COOLING SYSTEM WITH COOLANT D542
CAUTION:
Do not permit the vehicle to stand overnight in the following conditions:
^
with the cooling system drained
^
with the cooling system filled with either of the flushing solutions
^
without draining the part2 solution and flushing, draining, and refilling again with plain water.
Parts Information: