Gamith

I have heard people saying on the forum that changing to braided pipes made a difference, but mine is stock so can't confirm.

Having replaced the battery the only things I had to do was reset the clock and then the windows (fully lower, keep the button down for 5 seconds and then raise it up to closed, hold for 5 seconds and then do the next).

In this picture: Top-Left is for the brake fluid Bottom-Left is for the engine oil Bottom-Middle is for the engine oil dipstick Bottom-Right is for the washer fluid Middle-Right is for the engine coolant with a caution about steam (I expect) Top-Right is for the engine coolant expansion tank, with the min and max marks on it, probably for when the engine is cold, but check the manual for that. Hopefully someone can confirm.

I have not looked at the manual yet but my first choice would be the black arrow, 2nd the red arrow. The red arrow one has 'Engine Coolant' which is a bit of a giveaway and the black one looks to be the expansion tank and should have max and min markings on. I hope this helps.

I have mine suctioned onto the drivers side window - it has a long arm which brings it close enough to be reachable :-) Suffice to say there are options - a search on Aliexpress for 'alphard mobile phone holder' shows some designs, including at least one that wirelessly charges the phone in the holder.

Yep, it sounds as though you have reached the limit of what can be reasonably done at home.

Try amayama.com, put in the model and choose the chassis reference number (you will see what I mean) and see what you can find. For mine (a 2005 ATH10) it looks to be : 488208 (RH) or 48810 (LH) by the looks of things and they are different for each side and remarkably cheap - so make sure they are what you are after. Once you have the number you can search UK based websites if you like, or order from Amayama.

Until someone with more knowledge comes along I will say that I wouldn't use that location myself - I suspect it's a protector plate and not designed to hold up a ton or so. I have found this video that might help - the jacking point for the rear looks to be just in front of the spare tyre: Axle stands in the locations after the front wheels and before the rear wheels once it's raised would provide stability.

Hopefully you won't need to use this but if you need to re-cut the thread on the lambda sensor hole or the sensor itself they are an M18 x 1.5 tap and die. I got mine from Amazon - https://www.amazon.co.uk/dp/B0C9T6VBGR?ref_=pe_112168041_1111392281_fed_asin_title&th=1

So you changed the O2 sensor on the front exhaust manifold - that is likely to be the bank 1 sensor? There is another underneath, which should be referred to as 'bank 2' (I think) so that may be a similar replacement. I only changed the front one and it passed the MoT with no issues. Check: the cleaned MAF sensor is mounted tightly and electrically connected Ok. the replaced sensor is screwed in fully and no air is getting in that way - I had to ream out a new thread on mine as the previous person had jammed and cross-threaded it. that the air filter is also not loose and fitted back Ok. the electrical connections are good - remove and re-seat them You are right that the system thinks that there isn't enough petrol going in (in relation to air), so it's a matter of working out why that would be. I hope that helps.

I tend to use amayama.com to find the right part number and then do a search on ebay.co.uk or autodoc.co.uk to see if anyone can do it cheaper or faster.

There is a review of the arpenaz which has plenty of pictures of it in place at the rear of many vehicles (though not an Alphard specifically) here: https://nimblecamper.com/arpenaz-base-m-car-camping-review/ if that is of any interest. Mine has turned up but I don't know when I will get a chance to try a setup.

I would have thought a look underneath would be the most certain way - is there a driveshaft or something on the rear wheels? This is my definitely NOT 4WD 10 series for reference, with just the brake caliper attached to the rear wheel. I hope this helps.

I have been looking at the QUECHUA Arpenaz Base M car tent: https://www.decathlon.co.uk/p/6-man-camping-living-area-arpenaz-base-m/157674/c98c241m8648391 Which looks to be a good option for a side or tailgate tent at the cheap end to see if the concept works for you. My wife finds sleeping inside the alphard to be awkward so I was thinking of that and a couple of camp beds.

Personally, as I don't have your model, I would look at amayama.com and search your model for coil, pack, spark or plugs - one will bound to help.

It sounds as though you have done all the stuff that would be able to find the issue Personally I would, at this stage, call in an auto-electrician, otherwise you could be chasing your tail for ages and changing everything under the sun. I assume that the belt is tight, doesn't slip and that the alternator turns. Assuming that the replacement alternators weren't old we can discount, for example, worn brushes or other item-specific issues. With the engine running there should be an input voltage to the alternator (12v) and, obviously, an output voltage (14v). I would redo the earth connections 'just in case' and take a record of the voltages at various points. Disconnecting the alternator, with the engine off, would allow you to take measurements across the feeds, then turn on the ignition on and see if the measurements change at all. I have found this picture that goes through the connections on a 2008 - I don't know how relevant that might be to yours though. I'm sure there are better diagrams around. Good luck

I would start with https://www.tayna.co.uk/ and see the range they do: https://www.tayna.co.uk/leisure-batteries/ the more amps the more it can power but the longer it will take to fully charge. The other consideration is the size and post position, depending on where it goes and how it connects. You can search using a variety of options. I have used them and the battery they supplied does the job very well and was delivered quickly and well packaged.

1) Look at amayama.com, put in your vehicle details and do a search for 'mount' I would imagine. 2) Get the part numbers for the ones you want - and the price they would charge. 3) Search the inter-tubes for those part numbers to see if anyone does them cheaper / quicker 4) Profit!

Cheers Richard, the next time I am crawling underneath I will take a look for the sensors that Alex mentions, but in the meantime I will assume that as the front cameras don't work on the replacement WinCE head unit then that would be why the lane monitoring system activates and then turns itself off. Thanks everyone.

I can only imagine that they could be behind the holes with the two slats under the fog lights.

Would I be able to see them from the front or are they hidden behind the bumper and I would need to be underneath? I would be surprised to have the button fitted and active but the rest of the system not existing - but saying that who knows what its history is.

Cheers - the head unit had been replaced before I got it so this looks to be a pointless button on the dash at the moment. I can't say I am too fussed.

The only help I can offer are a couple of pictures I have taken of my 2005 rear suspension. From what I can tell I would say that there is a rubber ring on the top mounting,. but not the bottom one. Oh and this from amayama.com: Which confirms and gives a part number - 48257-28060 - there are several sites that seem to have this part - looking at prices amayama is cheapest if you don't mind waiting. I hope that helps.

Aliexpress has several: https://www.aliexpress.com/w/wholesale-110v-induction.html?spm=a2g0o.home.search.0 Amazon has at least one: https://www.amazon.co.uk/Electric-Cooktop-Countertop-Over-Heat-Protection/dp/B0GFNTTWNP/ref=sr_1_7?crid=1Q1C7LAJWFZSQ&dib=eyJ2IjoiMSJ9.7BS7UvXWgkZ0UkTpvPU1mj2F-AJmKLFwHJDY9aPtepJ8s6e2N9LEaHBIMKwwmNAjZQqnchhGf1NApq2aAO7fz04PhRTPKKTaycnMyZBKFXvsAzmO-f5DoFkBXzQIHEJWCH1TDF4ILo0mS81QwN-qDbZ8cMXqeH7Swh2WZjpkzdfv8nWbngcleCfqrormTM-gzc5njf99P5Th1q12GzatPl6kH_7G1d2lNT4jHPBy6qI.Ht-lbjWEHvhJYnxYhjHyQAAlf6puAAmP60Sx4foRKa4&dib_tag=se&keywords=110v+induction&qid=1775801149&sprefix=110v+induction%2Caps%2C268&sr=8-7&ufe=app_do%3Aamzn1.fos.d7e5a2de-8759-4da3-993c-d11b6e3d217f

Like this one: https://uk.alphardclub.com/forums/topic/8459-flashing-red-symbol-of-a-key-over-a-car/#comment-30219 If so that is the immobiliser and it comes on when the correct key isn't in the ignition.