Craig1 wrote:

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Air Cell off a building site. Can be cut to any size, double wall, pink on one side, silver on other, foil separated by about a 10mm "wall " makes little pockets, very durable, I have an off cut that is nearly 4 years old, in sun every day for windscreen.

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 I fitted Air Cell (Kingspan) up under the roof tiles, great stuff.

It's not difficult to take a vehicle ceiling down. First time takes awhile. I have taken my ceiling down, I have to start with the boot sill trim panel, it's that irritating.

After about half a dozen times with the ceiling down, I can get it down & all back together in an hour.

Too far away. 

It may be daunting at first, but it is not difficult, you will end realising how simply vehicles are stuck together.

Put in some acoustic foam first around the driving area, you will appreciate the extra quietness & fill the rest with polybatts, just have to make them a bit thinner.

Vehicle ceilings are easy, try retrofitting Air Cell under roof tills down near the eaves. That's painful.

yes it is a professional job

https://www.volkswagen.com.au/en/models/crafter-kampervan.html

PeterInSa wrote:

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Broken down in the bush on a hot day, engine wont start/run the air-conditioner and left the generator at home so cannot run the rooftop air-conditioner.

Maids, If you have not already done so, suggest you purchase a scan gauge and learn how to use it. ( its not rocket science)

Modern vehicles with their electronics can have problems in the bush (rough roads with vibration loosening electrical connections, or...) and a scan gauge can hopefully inform you of the problem & allow you to fix it or discus with your back home mechanic.

Am buying the unit and adapter below, it has more functions than my current scan gauge. Your Crafter may need a different scan gauge/adapter.

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 These scan gauges can tell fibs also.  Imagine being out in the bush as above, and the scan gauge gives you a code and you look up what that means.  It told me that the turbo had gone kaput. (Lots of money).  That was ten years ago.  The turbo is still going strong.   All it really needed was a computer reset. 

Scan gauges are not an exact science. and yes, any old gauge is not good enough, get one that is set to your particular make. You have half a chance of it throwing up a valid code.