Jaguar XJ (X350). Manual — part 806

303-12A : Intake Air Distribution and Filtering – 3.0L

NA V6 - AJ27

Specifications

Specifications

Torque Specifications

Description Nm lb-ft lb-in

Air cleaner 8

—

71

Description and operation

Intake Air Distribution and Filtering

Item Part Number

Description

1

—

Air cleaner outlet pipe

2

—

Mass air flow (MAF) sensor

3

—

Air cleaner cover

4

—

Air cleaner element

5

—

Air cleaner

6

—

Air cleaner intake pipe

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Diagnosis and testing

Intake Air Distribution and Filtering - VIN
Range: G00442->G45703

Inspection and Verification

1 . Verify the customer concern.

2 . Visually inspect for obvious signs of mechanical damage.

Visual Inspection Chart

Mechanical

Air cleaner intake pipe

Air cleaner outlet pipe

Air cleaner element

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 cause is not visually evident, verify the symptom and refer to the Jaguar Approved

Diagnostic System.

Intake Air Distribution and Filtering - VIN
Range: G45704->G99999

Inspection and Verification

1 . Verify the customer concern.

2 . Visually inspect for obvious signs of damage.

Mechanical

Electrical

Hoses and ducts (damage/connections)

Air cleaner element (contaminated/blocked)

Restricted air intake

Seals and gaskets

Mass air flow (MAF) sensor

Manifold absolute pressure (MAP) sensor

Throttle body

Harness (security/damage)

Connections (security/damage)

Intake manifold tuning (IMT) valves

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

before proceeding to the next step.

4 . If the cause is not visually evident use the Jaguar approved diagnostic system or a scan tool to

retrieve the fault codes before proceeding to the DTC index chart.

Symptom chart

Symptom

Possible cause

Action

Vehicle does not

start/hard starting/poor

performance

Restricted/blocked air intake

Restricted/blocked air cleaner

element

Clear the restriction,

Air Cleaner (19.10.05) Replace the

air cleaner element as necessary,

Air Cleaner Element (19.10.08)

Excessive intake noise

Intake pipe

disconnected/damaged after
the air cleaner

Air cleaner assembly incorrectly

assembled/damaged

Check the intake system and hoses

for correct installation/damage,

Air Cleaner (19.10.05)

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