Can anyone answer this one please, - are the Headlamp Washers (06 model Supercharged) only operative above a certain speed ? - Just that I've never noticed them working and having checked whilst stationary, headlamps on and pressed washer button 6 times as the manual says, still nothing. Windscreen washers do work fine all the time.

Thanks in advance. Carl

The headlamp washers only work once on each ignition/lights on cycle I think. The logic being that you don't need to wash your lamps as often as your screen. TDV8 HSE, Remap (+45 BHP + 100 Nm), Taylored sport exhaust system by Pipe Werx
20" HST alloys, Privacy glass, Side steps, Xenon Adaptive Lighting, Adaptive cruise control

Quote:

Head Lamp Wash Only (No Wipe Function)

The headlamp washers are only active when the headlamps and ignition are switched on. If the washer reservoir fluid level becomes low, the instrument cluster sends a message, via the CAN bus, to the CJB, which suspends headlamp wash operation to preserve washer fluid in the reservoir.

With the ignition and lights on, headlamp wash is activated on the first operation of the wiper column control switch in the wash/wipe position.

The CJB monitors the operation of the wash/wipe switch and maintains a counter to restrict headlamp washer operation to every fourth operation of the wash/wipe switch in conjunction with a 10-minute timer. The timer prevents a second operation of the headlamp washers within a 10-minute period. Should the washer switch be activated for more than four programmed wipe requests during the 10-minute period, the headlamp washer will remain disabled. Only the next consecutive programmed wipe request, after the 10-minute timer has expired, will the headlamp washers be enabled. The counter and timer are reset when the ignition is switched to OFF or the light switch is turned from OFF back to ON within the same ignition cycle.

When headlamp wash is active, the CJB energises the washer pump twice per cycle. The headlamp washer pump is powered for a 0.5 second period.