KenONeill

You live in Surrey. Absolutely you must use deionised water in the cooling system.

Absolutely use coolant marked "G12" (or G12+) then. Under no circumstances put an old fashioned G11 (ethylene glycol) in the system. Also, depending on brand, G12(+) may be orange rather than red or pink.

This sounds like a worst case scenario to me. Try cleaning the insides of the windows with some sort of a lint free duster.

OK, the splines are taper splines, so the arm gets tighter on the pivot as you do up the nut. To release the arm, undo the nut a bit, maybe 2 turns. Now stand the arm up, like if you're cleaning the base of the windscreen. Hold it at the blade end and try to push pull it around the pivot on the arm. You should feel it release. If that fails, spray it with a dismantling lubricant such as PlusGas, and go for a cuppa. Do not bother with Water Dispersant-40.

To repeat, air is 80% nitrogen.

Yeah; my last was based on it being well known that there are GPS "dead zones" in the Welsh valleys, some for no accountable reason.

You're in South Wales, yes? In that case, I think the grey compass is "no GPS connection" and is also a warning that your map is neither aligned on true North nor on direction of travel. Compare your screen dump with, say, Bing maps centred on Raglan (when North is "up").

Edit inline, bold.

Use VCDS (or similar) to investigate your injector duty cycle; This wants to be under 90% between full power revs (probably 4_000, but you've not bothered to state which engine) and the start of the orange band.

Because the adjustment is automatic. That's the "dance" they do when you turn them on.

@octaviani Yes. Exactly which engine(s) (capacity, tune, injection system, code if known) are you planning to use biodiesel in?

Add to that how lots of "warped brake discs" are actually resin deposits on the discs from the foot brake being held on unnecessarily...

If I'm reading this correctly, you're not getting a battery light when you first with on, yes? If so, then I'd suspect a break or loose connection in the alternator control wires.

Does the battery light appear when you first switch on, but haven't actually started the engine?

First suspect. Mine wouldn't get past 45mpg on a 12 mile commute; It would easily do mid-50s driven faster on a 200 mile run though.

There is a reason why they are commonly known as "halfrauds" in these parts.

Not really into Texas; Any MacDonald OTOH...

Ach, it's chust a wee soft mornin'.

Well, If it helps they do make a drone, and have the characteristic "wobble wear", when needing replaced.

Cheers - AFK due to blood poisoning.

Aka "Doughnut City".

I have never owned a car with carburettor(s); throttle body injection yes, and direct fuel injection yes, but never carburettor(s).

Physically yes, but you'n need to change the engine, gearbox, EMS and fuel system.

Maybe; this is why we ask for a location.

Is it actually a bolt, or is it a set screw? There is a difference, and an important one if it's what the pulley rotates on.