Hi....welcome to the Forum
If the headlamps are high then there is an issue with the ride height sensors which automatically adjust the level of the headlights when the suspension alters to avoid blinding other motorists.
If one (or both) of the rear sensors is defective then this can cause the issue you are experiencing.
Best to take it to a reputable garage who should be able to identify if there is an issue with the sensors
Let us know how you get on with it
An exciter is a ballast resistor I would think but never heard it called that before
Also, I have never heard of resetting warning lamps for bulbs either as this would occur in the system when a new bulb is fitted
Hi....welcome to the Forum
It sounds like the turbo variable vanes are gummed up.
If you drive the car around locally and not take on long runs then this can occur.
Hi Jack....welcome to the Forum
That's an aggressive front end of the car, looks great!
What other mods have you done to it so far?
Good to have you onboard
Hi....welcome to the Forum
I would be tempted to reinstate the EGR and put a blanking plate (with a small hole for the gas to be sensed by the engine management) to extinguish the EML.
Hi....welcome to the Forum
I would advise to take it into a transmission specialist who can diagnose the issue and it may well be that it needs a fluid and filter change which could improve the overall function of the gearbox operation.
Generally, the fluid and filter replacement would not cost too much money and will definitely give longevity to the transmission
Hi....welcome to the Forum
Sorry we dont have any Club stickers or tshirts for this club and we dont have any meetings as yet (but you are more than welcome to set up one if you like).
I don't know about the kangeroo running but restricted revs could be the turbo variable vanes gummed up.
Try cleaning the turbo with a proper turbo cleaning solution
If it only happens when its cold then I would imagine it to be a coolant temperature sensor.
If you plug in the OBD reader, can you select live data and read the coolant temperature when its cold.
If its a ridiculous reading such as -30 degrees Centigrade or +25 degrees Centigrade for example then it is out of range but not flagging a code.
Let us know what you find
Not sure why the ABS light would suddenly come on after the garage visit unless they did some work on the brakes or suspension and forgot to plug in the sensor?
Hi...welcome to the Forum
It would be worth having a 'combustion sniff test' done on the coolant to determine if there is any combustion gasses present in the coolant suggesting that the head gasket is on its way out.
Let us know what you find
Hi...welcome to the Forum
I would imagine pre-facelift doors should fit okay.
Usually, a facelift is just that...revised bumpers, grille, etc. used to update the looks of the car.