Jaguar XJ (X350). Manual — part 1064

Description and operation

Transmission Cooling

All except vehicles with diesel engine

Item

Part Number

Description

1

—

Fluid cooler

2

—

Transmission

3

—

Fluid cooler tubes

Fluid Cooler

The fluid cooler is of an aluminium construction consisting of a tube and louvered fin core-type, the

tubes are arranged horizontally for the crossflow of the fluid.

It is divided into two sections to provide cooling for both the transmission and the engine, each

section is separate within the same unit.

When carrying out any transmission procedures the drained fluid should be checked thoroughly for

any metal filings or particles, in the event of this the transmission fault should be located followed by

a thorough flushing of the fluid cooler and fluid cooler tubes.

Vehicles with diesel engine

Item

Part Number

Description

1

—

Fluid cooler inlet hose

2

—

Fluid cooler outlet hose

3

—

Transmission

4

Fluid cooler tubes

5

Fluid cooler tube retaining bracket

6

Fluid cooler tube retaining bracket

7

Fluid cooler retaining bracket

8

Fluid cooler

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Fluid Cooler

The fluid cooler is mounted to the left-hand side of the front subframe via a retaining bracket. The

fluid cooler is cooled by the engine coolant system.

When carrying out any transmission procedures the drained fluid should be checked thoroughly for

any metal filings or particles, in the event of this the transmission fault should be located followed by

a thorough flushing of the fluid cooler and fluid cooler tubes.

Diagnosis and testing

Transmission Cooling

Inspection and Verification

1 . Verify the customer concern by operating the system.

2 . Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart

Mechanical

Feed and return tubes

Connections to the automatic transmission and the automatic transmission fluid cooler

Automatic transmission fluid level

1 . If an obvious cause for an observed or reported concern is found, correct the cause (if possible)

before proceeding to the next step.

2 . If the concern is not visually evident, verify the sympton and refer to the Sympton chart.

Symptom chart

Condition

Possible sources

Action

Over heating of the

automatic

transmission.

Obstruction in the automatic

transmission fluid cooler.

Flush out the automatic transmission

fluid cooler with new automatic
transmission fluid.

If the flushing is unsucessful install a

new automatic transmission fluid
cooler.

Over heating of the

automatic

transmission.

Obstruction in the automatic

transmission fluid tubes.

Flush out the automatic transmission

fluid cooler tubes with new
automatic transmission fluid.

If the flushing is unsucessful install

new automatic transmission fluid
cooler tubes.

Loss of automatic

transmission fluid

Connections to the automatic

transmission and the automatic

transmission fluid cooler.

Check the torque of the tubes.

Check the tubes, connections and

seals.

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