Filter in dep valve housing in front of air filter (to front of car) often just as well to fit complete unit they are not too expensive and easy enough to do. If not had an air filter lately might as well do it too as cover off.

gems or motronic?

Couldn't agree more, extra 5mins makes a job neat, tidy and dare I say profesional. Makes it much easier to find faults in the future. Presume it is the same kind of person that wires in spots, relays, elec fans and so on all in one wire colour, earths aswell. grrrrrrrrrrr.

Forgot to ask if there was play or is wheel firm but just moved?

afraid you will need to get it plugged in could be sensors, bad plug, bad wires or compressor. Sorry no good news but if you can get plugged into autologic or similar should put you in the right direction.

Have you been off road, any chance you have damaged anything? if not possibly t/r/e or swivell bearing colapse.

relay is behind o/s boot trim, trim removed by turning clips 90 deg and fold rear seat forward. There are two relays together you can swap them to see if there is a change. actuator ect behind rear door trim not easy to get into with door closed but can be done.

could be a few things: relay, door catch, actuator or wiring. If you can get it on to a computer see if it can be forced open. does door handle feel ok?

Have you got ecu ect to go with engine?

throttle potentiometer, could be component or wiring

I would go to pub!

check tool box in boot is not full of water.

you can buy home versions not sure of these but guys on here will be able to help. dealers have testbook and indys will generaly have autologic or rovacom.

what do you think you have set alignment at?

You can fit on older cars but not easy getting new ones these days from some suppliers. Never did understand peoples problem with bull bars, gettig hit with metal bumper followed by metal bonnet not much differant to bullbar, just if its your car less damage.

Check what you have/ need and i will do my best to help with missing link, should be able to get pre-maid pipe to do the job

Does pump sound like there is air going through it ? this could indicate injector seals, the bad news is if it has been like this for a while the pump may need doing too they dont seem to like the air going back have seen seals done then pump packing up within couple hundred miles. Dont mean to...

body electrical control module, big ecu type devise under drivers seat.

broken wire in loon going to alternator, from memory white with a trace i think.

100% agree, even if you have a highline prob means it has had a replacment at some point the windscreen will not work by purly fitting switch the system will have to be enabled by testbook/ autologic type system.