Peugeot 405 Manual

Headlight beam alignment - general information and component renewal
Body electrical system / Headlight beam alignment - general information and component renewal


1 Accurate adjustment of the headlight beam is only possible using optical beam-setting equipment, and this work should therefore be carried out by a Peugeot dealer or suitablyequipped workshop.

2 For reference, the headlights can be finely adjusted using a suitable-sized Allen key to rotate the adjuster assemblies fitted to the rear of each light unit. The outer adjuster alters the vertical height of the beam, whilst the inner adjuster alters the horizontal position of the beam (see illustrations).

8.2a Headlight beam vertical height fine adjuster (A) and adjuster unit knob
8.2a Headlight beam vertical height fine adjuster (A) and adjuster unit knob (B)

8.2b Headlight beam horizontal fine adjuster (arrowed)
8.2b Headlight beam horizontal fine adjuster (arrowed)

Prior to
adjustment, ensure the vehicle is unladen, and that the adjuster units (see below) are both set to position У0Ф, or У1Ф, as applicable.

3 Each headlight unit is equipped with a three- or four-position vertical beam adjuster unit (depending on model) - this can be used to adjust the headlight beam, to compensate for the relevant load which the vehicle is carrying. The adjuster units may be incorporated into the vertical beam adjuster on the back of the headlight, or on certain models, an adjuster switch is provided on the facia. On models with adjusters mounted on the headlights, access to them can be gained with the bonnet open. The adjusters should be positioned as follows according type, and the load being carried in the vehicle.

Headlight-mounted adjusters - models up to 1992
Position 1 No load
Position 2 Medium load
Position 3 Maximum load
Headlight-mounted adjusters - models from 1993
Position 1 Front seat occupied Position 2 All seats occupied and luggage compartment full Position 3 DriverТs seat occupied and luggage compartment full Facia-mounted adjuster
Position 0 Front seats occupied Position 1 All seats occupied Position 2 All seats occupied and luggage compartment full Position 3 DriverТs seat occupied and luggage compartment full 4 Where applicable, ensure both adjusters are set to the same position, and be sure to reset if the vehicle load is altered.

Component renewal
Mechanical remote adjuster mechanism
5 Working beneath the facia ventilation nozzles, prise out the three blanking plates covering the instrument panel visor screws.

6 Remove the screws, and lift off the instrument panel visor.

7 Move the steering column to its lowest position.

8 Carefully prise off the headlight adjuster switch knob.

9 Remove the securing screws, and withdraw the driverТs side upper facia panel. Disconnect the wiring from the switches in the panel as the panel is removed.

10 Remove the two screws securing the adjuster switch to the facia (see illustration).

8.10 Headlight adjuster switch securing screws (arrowed)
8.10 Headlight adjuster switch securing screws (arrowed)

11 Working in the engine compartment, turn and pull the adjusters from the brackets behind the headlights. The ends of the adjusters are a push-fit (balljoints) in the rear of the headlights.

12 Unclip the adjuster cables from the brackets and clips in the engine bay. Feed the switch cable through the bulkhead into the engine bay (see Haynes Hint overleaf).

13 Refitting is a reversal of removal. Where applicable, use the string to pull the cable into position through the bulkhead into the passenger compartment.

Electric adjuster switch 14 Refer to Section 4.

Electric adjuster unit
15 Disconnect the battery negative lead.

16 Working at the rear of the headlight, disconnect the wiring plug from the adjuster unit (mounted in the rear of the headlight).

17 Twist the adjuster unit (or the locking collar, as applicable) to release the adjuster from the aperture in the headlight unit.


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