dezufo

The outer plastic covering of the drive cable cracks, due to age, then jams in the mechanism inside the door. If you cut the cable it will release the tension then you can operate the door manually. Replacement cable/pulley system is available on eBay https://www.ebay.co.uk/itm/354878093116

As it is not being felt via the steering, then the problem has to be at the rear, so the most obvious would be wheel balance or worn rear axle bushes or wheel bearing or buckled wheel

Genuine Toyota oil from eBay https://www.ebay.co.uk/itm/383571542591

You can change the LEDs for white ones, look on eBay

My odometer 2003 is in KM, to ensure the tester does not enter it as miles either tell him or do what I did and put a sticker on the speedo saying "Odometer registers in Kilometres". Check the certificate when you collect it to make sure it has been entered as KM as some testers have been known to enter the reading as miles or convert the reading into miles, both are wrong, they then tell you that it has to be in miles but all they have to do is write km where it says Mileage

Cat part number is; 25051-28170, see link; but you could try some catalytic cleaner first to see if that improves the emissions https://www.amayama.com/en/genuine-catalogs/epc/toyota-japan/alphard/ANH10W/35720/engine/1701

Ingenious idea for the front seat, How old is the GSD?

If you are losing a lot of water via the pump, then you must have quite a big leak which would be obvious as there would be a puddle under the offside of the engine. There are 2 possible areas of major leaks. 1) Some radiators have plastic sides, these are prone to cracking due to age & heat. 2)There are 2 hoses, flow & return, that connect to the heater matrix these have plastic T piece connectors that are prone to cracking due to age and heat, they can be replaced with brass barbed 19mm equal Ts. See link for the pump part number, plus other parts, then use as a cross-reference on eBay https://www.amayama.com/en/genuine-catalogs/epc/toyota-japan/alphard/ATH10W/43189/engine/1601

the cable is not available separately, but the assembly is available on eBay, https://www.ebay.co.uk/itm/354878093116 there are videos on youtube showing how to do it

I have seen people getting Dryrobe seat covers for their Alphards. I use a large cotton dust sheet, on the floor, as it soaks up wet/dirty paw prints but then my dogs have separate cages where the 3rd row of seat used to be, they are too big to sit on the seats

Some traders fit an electronic chip that converts the input signal to the speedo/odometer from kmh to mph. They also black out the K on the speedo so it just shows mh. You should have had some paper work confirming what the odometer reading was before and after the chip was fitted. Going by your figures, you have done 12,000 miles, is that correct? It could be a problem to some people as they might think the odometer has been fiddled with. For your own peace of mind, put your chassis/vin number in on the CarVX site, pay the fee approx £20, they will then email you the auction report showing the odometer reading at the time of the auction plus any damage, recalls etc. Some chips can fail and cause various faults with warning lights etc.

When the drain holes are blocked, the channels that the roof slides in overflow. This tool helps to clear any debris https://www.ebay.co.uk/itm/317001966951

Hi, I use the company in the link, he supplies quality parts at reasonable prices, just bought both rear shocks for mine, https://jdmcarparts.co.uk/collections/toyota?sort_by=best-selling&filter.p.tag=Toyota+Alphard+2002-2008&filter.p.tag=Suspension

You can buy it through the link or put the part number in the eBay search as it fits other models or get 1 from a Toyota dealer. It is plain. https://www.amayama.com/en/part/toyota/7731048010

You can buy the red lights that replace the bumper reflectors