Lighting Mechanisms (17.04); Headlamp Levelling (Hid Only); Maintenance; Headlamp Levelling Module-Renew - Aston Martin V8 Vantage Workshop Manual

Lighting (17.00)

Lighting Mechanisms (17.04)

Headlamp Levelling (HID Only)

The 'Automatic Dynamic Headlamp Levelling System'
consists of:
• An Automatic Dynamic Headlamp Levelling System ECU
• A level sensor for the front suspension
• A level sensor for the rear suspension
• A bi-polar stepper motor mounted in the housing of each
headlamp
The Automatic Dynamic Headlamp Levelling System
prevents the dipped beam dazzling oncoming road traffic by
varying the angular position of the dipped (and main beam)
headlamp units relative to the position of the vehicles
suspension.
Static condition - Compensates for boot or occupant load
condition.
Dynamic condition - Compensates for suspension
movements due to acceleration and deceleration. The
sensitivity of the system is dependent on vehicle speed and
the rate of change of the vehicle speed.
High amplitude low frequency inputs such as those caused
by potholes are filtered out to desensitise the system in
constant speed situations.
October 2005

Maintenance

Headlamp Levelling Module-Renew

Repair Operation Time (ROT)
Item
Headlamp Levelling Module-Renew
Removal
1. Remove IP unit from vehicle (see Workshop Manual
procedure 01.12.AB Facia Assembly - LHD - Remove
for Access and Refit).
2. Drill out pop-rivets (x2), disconnect multiplug.
Installation
1. Install headlamp levelling module, secure module with
pop-rivets (x2) an connect multiplug.
2. Install IP unit into vehicle (see Workshop Manual
procedure 01.12.AB Facia Assembly - LHD - Remove
for Access and Refit).
Workshop Manual

Lighting Mechanisms (17.04)

Lighting (17.00)
Code
17.04.AB
17-4-1