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TECHNICAL BULLETIN
JTB00176NAS2
28 APR 2014
© Jaguar Land Rover North America, LLC
NOTE: The information in Technical Bulletins is intended for use by trained, professional Technicians with the knowledge, tools,
and equipment required to do the job properly and safely. It informs these Technicians of conditions that may occur on some
vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by 'do-ityourselfers'. If you are not a Retailer, do not assume that a condition described affects your vehicle. Contact an authorized
Jaguar service facility to determine whether this bulletin applies to a specific vehicle.

This reissue replaces all previous versions. Please destroy all previous versions. Only refer to the
electronic version of this Technical Bulletin in TOPIx.
Changes are highlighted in gray

SECTION: 417-01

Headlamp Internal Condensation
AFFECTED VEHICLE RANGE:
XF (X250)
Model Year:
VIN:

2009-2013
R00001-S76018

XK Range (X150)
Model Year:
2007-2014
VIN:
B00001-B52852

MARKETS:
NAS

CONDITION SUMMARY:
Situation: This bulletin is for information only; it provides acceptance standards relating to the level of
headlamp internal condensation.
Cause: Condensation or '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.
Action: Should a customer express a concern for headlamp condensation, refer to the Service Instruction
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

TOOLS:
No Tools Required

SERVICE INSTRUCTION:
Headlamp Condensation Standards

http://topix.jaguar.jlrint.com/topix/service/document/474583

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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 [XF: four vents per lamp; XK: two vents per lamp]. 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.

NOTE: Headlamps with light misting should not be renewed under warranty.

1. Open the hood. Turn the headlamp dip and main beam functions 'ON', and run the engine for 30 minutes. if
water droplets still remain on the inside of the headlamp glass, the lamp should be renewed. If there is
evidence of standing water within the headlamp unit, the unit will also need to be renewed (see TOPIx
Workshop Manual, section: 417-01).
2. Ensure that all 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 headlamps 'ON' [high beam setting].
Leave the engine running and the headlamp high beams 'ON' for a minimum of 30 minutes.

Headlamp Condensation Which May Be Covered By Warranty

NOTE: Headlamps with light misting should not be renewed under warranty.

5. Large apparent visible droplets of water on the
interior side of the headlamp lens.

6. Drip marks/streaks in the film of condensation on
the interior side of the headlamp lens.

http://topix.jaguar.jlrint.com/topix/service/document/474583

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7. Thick mist covering a majority of the interior of the
headlamp lens. The mist also obstructs the view of
the interior of the headlamp.

http://topix.jaguar.jlrint.com/topix/service/document/474583

4/28/2014