HID Headlamp, Replacing Bulb

HID Headlamp, Replacing Bulb

CAUTION!
• HIGH VOLTAGE!

• Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE " warning symbols.

• The physical and mechanical properties of HID bulbs are very sensitive. Internal pressure of HID glass bulb may exceed 100 bar (in operation). Bulb temperature may exceed 700 degrees Celsius.

• Danger of explosion and burning.

• The control modules for HID lamps must never be operated (headlamps turned on) without an HID lamp.

• HID bulbs must only be operated (headlamps turned on) when installed in the headlamp housing.

• Always wear safety glasses and gloves when removing and installing HID bulb.

• Never look directly at an operating HID bulb. The UV emissions of an HID bulb are approximately 2.5 times that of a comparable halogen bulb..

Removing

- Disconnect battery. Audi A4 & S4=> [ Battery, Engine Compartment, Disconnecting and Connecting ] Battery, Engine Compartment, Disconnecting and Connecting. Audi RS4 => [ Battery, Luggage Compartment, Disconnecting and Connecting ] Battery, Luggage Compartment, Disconnecting and Connecting.

Left headlamp

- Remove top section of washer fluid reservoir and power steering reservoir => [ Upper Washer Fluid Reservoir and Power Steering Fluid Reservoir ].

Both sides, continued:

- Remove screws - 1 - and - 2 -.





- Remove cover for low beam from headlamp housing - arrow -.

- Remove electrical wire from retainers - arrow -.





- Disconnect electrical connection - 4 -.

- Release retaining clips - 1 - and - 3 - and remove HID headlamp bulb - 2 - from housing.

Faulty HID headlamp bulb disposal => [ HID Headlamp Bulb, Disposal ] HID Bi-Xenon Headlamps, From 11.04

Installing

Install in reverse order of removal, noting the following:

CAUTION!
• Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over.

• When installing housing cover, ensure proper seating. Water intrusion will damage headlamp.

- Insert new HID headlamp bulb in housing.

• Note installation position: the electrical connection must always point downwards.

- Secure HID headlamp bulb with retaining clips.

- Reconnect battery. Required steps Audi A4 & S4=> Battery, Engine Compartment, Disconnecting and Connecting. Required steps Audi RS4

Tightening Specifications