(TTY 1-800-424-9153), or go to http://www.safercar.gov.Jaguar XF (X250) V8-5.0L SC Technical Service Bulletin # JTB00176 Date: 090922

(TTY 1-800-424-9153), or go to http://www.safercar.gov.Jaguar XF (X250) V8-5.0L SC Technical Service Bulletin # JTB00176 Date: 090922

Lighting - Headlamp Internal Condensation Information

No: JTB00176

Issue: 1

Date: 22 SEPT 2009

THIS BULLETIN SUPERSEDES XK417-001 CHANGES ARE HIGHLIGHTED WITH GRAY BACKGROUND AND/OR ASTERISKS.

SECTION: 417

Headlamp Internal Condensation

AFFECTED VEHICLE RANGE

CONDITION SUMMARY:

HEADLAMP INTERNAL CONDENSATION STANDARDS

Situation:

This 'information only' bulletin is to inform Dealers of Jaguar's acceptance standards relating to the levels of condensation that may occur in the

headlamps. A 'misting' on the inside surface of the headlamp lens may be caused by natural condensation that can be expected under certain

atmospheric conditions. Certain levels of condensation are deemed acceptable by Jaguar.

NOTE:

Incorrect installation of a headlamp bulb cover, following bulb replacement, can lead to condensation forming on the interior surface of the

headlamp lens. If incorrect installation of a bulb cover is determined to be the cause of the condensation, steps should be taken to dry out the lamps

and ensure all covers are correctly installed. Condensation levels should be monitored to allow natural dissipation of the condensation.

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Action:

Should a customer express a concern for headlamp condensation, refer to the Repair Procedure detailed in this bulletin for an explanation of Jaguar

standards regarding headlamp condensation and additional steps to resolve the customer's concern.

PARTS:

No parts required. Information purposes only.

WARRANTY:

NOTE:

This bulletin provides certain conditions when headlamp condensation is warrantable. Headlamps with light misting are not to be replaced under

warranty.

No warranty provided for this bulletin. Information purposes only.

Normal warranty policy and procedures apply.

REPAIR PROCEDURE

HEADLAMP CONDENSATION STANDARDS

NOTE:

Atmospheric air containing water can enter the headlamp. When temperature and pressure conditions are conducive, condensation can occur.

When condensation occurs, a thin film of water vapor 'mist' can form on the inside surface of the headlamp lens. Modern headlamps are not sealed

tightly and are designed to equalize changes in pressure through open vents *- two vents per lamp on XK, four vents per lamp on XF.*

During a period of normal headlamp operation the thin mist of condensation should clear, dissipating through the vents, as the lamp heats up.

Condensation should typically clear from the pocket areas of the headlamp lens when the headlamp low and high beam functions are turned 'on' with

the engine running for a 30 minute period.

DETERMINE IF HEADLAMP CONDENSATION IS WARRANTABLE

NOTE:

Due to different packaging conditions on opposing sides of the vehicle, the amount of condensation within the lamps may differ. The rate at which

condensation clears will also differ. The lamps should be left 'on' for the duration of the recommended drying time, regardless of whether one lamp

has cleared ahead of the lamp on the opposing side of the vehicle. The hood should be left open to maximize air flow around the headlamp

assemblies.

1. Open the hood.

2. Ensure that all of the headlamp bulb covers are correctly installed and secure and that the rubber breathers are in place, on each headlamp

assembly.

3. Start the engine.

4. Turn the headlamp 'high beam' function 'ON'.

5. Leave the headlamp 'high beams' on with the engine running for at least 30 minutes.

NOTE:

Headlamps with only light misting on the interior surface of the lens should not be replaced under warranty.

NOTE:

Global Technical Reference (GTR) lookup sequence is as follows:

GTR Home > NAS > Model > Service Information > Model Year > Workshop Manual > 4: Electrical > 417: Lighting > 417-01: Exterior Lighting

6. After the 30 minute period, if any of the following conditions are confirmed, the headlamp assembly should be replaced.

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^ Large water droplets are present on the interior surface of the headlamp lens. (Figure 1)

^ Drip marks or streaks are present in the film of condensation on the interior surface of the headlamp lens. (Figure 2)

^ A thick mist is covering a majority of the interior surface of the headlamp lens and obstructs the view of the interior of the lamp. (Figure 3)

^ There is evidence of standing water within the headlamp unit.