Bulb Replacement; Headlamp Beam Alignment; Headlamp Units; Hid Xenon Headlamps (If Fitted) - Lotus Evora Service Notes

Lotus Service Notes
4. When re-fitting, ensure the front clamshell is first fitted and optimised for position before adjusting the
headlamp mounting to obtain a satisfactory fit of the lamp in the aperture.
5. Re-connect the harness and washer tubing and check headlamp beam alignment.

Headlamp Beam Alignment

1. Using beam setting equipment compatible with local regulations, position the machine between 300 and
700mm in front of the LH headlamp, and parallel with the two headlamp units using the sight bar or similar
device dependent on the machine design, to ensure cross car match. Use the guides provided on the
machine to ensure the correct height and lateral setting.
2. Switch on the headlamp dip beams and check the lateral beam alignment. The 'knee point' of the beam
cut off line must lie within a tolerance of 2% to the passenger side, and 0%. Check the vertical alignment
of the dip beam which must lie within a tolerance of -0.5% and -2%.
3. If adjustment is required, turn the steering to full lock to facilitate removal of the four screws retaining the
access cover in the wheelarch liner.
4. Each headlamp assembly features two adjustment screws, one for vertical, and one for horizontal aim. To
adjust the beam laterally, turn the inboard adjuster screw. Turn clockwise to adjust the beam to the right.
Optimum setting is 0%. To adjust the beam vertically, turn the outboard adjuster screw. Turn clockwise
to raise the beam. Optimum setting is -1.2%. Re-check lateral alignment.
5. Repeat for the opposite lamp.
6. Re-fit the access covert in the wheelarch liner.
MR.12 - BULB REPLACEMENT

Headlamp Units

Halogen Headlamps (if fitted)
On cars fitted with halogen headlamp assemblies, the lamps are fitted in the same housings as used for
the HID headlamps: Remove the access cover in the wheelarch liner, and pull off the protective boot from
the back of the headlamp housing. Pull the harness plug off the bulb, release the spring wire retaining clip,
and withdraw the bulb. Note that touching the glass envelope by hand is likely to lead to premature failure. If
necessary, the envelope should be cleaned using white spirit and a paper tissue.

HID Xenon Headlamps (if fitted)

Each HID headlamp unit uses a D1S electronic igniter/burner unit (equivalent to the bulb), mounted in a
specially coated alloy reflector, with a ballast unit to output around 20,000 volts to the burner.
WARNING: The high voltages produced by the headlamp ballast unit could cause injurious electric
shocks. Ensure the battery is disconnected before servicing a headlamp assembly.
1. Disconnect the battery to protect from potentially injurious shocks. Remove the access cover in the
wheelarch liner, and pull off the protective boot from the back of the headlamp housing.
2. Release the spring wire clip and withdraw the burner sufficiently to allow the H.T. cable to be unplugged.
Note that touching the glass envelope by hand is likely to lead to premature failure. If necessary, the
envelope should be cleaned using white spirit and a paper tissue.
3. After refitting, verify lamp operation and check that the protective boot is correctly fitted onto the lamp body
before replacing the wheelarch liner grommet.
Front Turn Indicator & Sidelamp Bulbs
The front turn lamps and sidelamps are provided by light emitting diodes (LEDs) and are incorporated into
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Section MR