I've just taken delivery of a 2006 Alphard.

I can't see any sign of a rear window washer jet. Did they have them fitted?

The ‘jet’ is in the spoiler above the rear window, not easy to access.

I’ve had no rear wash since I bought our Alphy, kinda gave up as I think stripping out campervan conversion panels to see if tube has been nipped is going to be a major chew.

The washer gives an occasional dribble when operated so I think pump is ok.

Good luck

(If you want I could copy you parts diagram that gives you info)

I can see there is a hole in the spoiler to the left of centre. I couldn't see anything in it and when I poked my finger in it, I couldn't feel anything in there either.

Next time I'm in it I will operate the washer and see if any water appears.

Yep they do have a rear washer, and on the 10 series Alphard it lives up in the rear spoiler. What you are seeing sounds right, it is basically a little nozzle sitting behind that small hole and it can be hard to see or feel from the outside. If you try it and get nothing, a few quick checks that usually narrow it down:

1. Listen for the rear washer pump when you operate it. Some cars have a separate pump for front and rear, others use a valve, so the sound can help.

2. Check the rear wiper arm area for any signs of water dribbling out from behind the trim. If the pipe has come off or split inside the tailgate you will often get wet trim but no spray.

3. Poke the hole gently with something soft like a cable tie, the nozzle can block with wax or limescale. Avoid pins or drills as you can damage the nozzle and make the spray pattern worse.

4. If it only dribbles, suspect a partial blockage or a kinked pipe where the loom and washer hose pass through the rubber gaiter at the top corner of the tailgate.

That is a common pinch point, especially if panels have been removed for conversions. Trade off wise, getting to the hose run inside the tailgate can mean taking interior trims off, so it is worth doing the easy external checks and the gaiter check first before you start pulling conversion panels. Let us know what happens when you operate it and whether you can hear the pump, that will steer the next step.

cheers