Hello Abdul,
Thanks for being in touch.
The car would appear to have given you good service.
Apologies, but I’m a little confused as to why you have suddenly abandoned your local garage who have looked after your servicing and MOTs needs, and moved to an Audi main dealer for your MOT. Anything to do with any element of ‘offers’?
Anyway, re. the now necessary repairs:- It sounds as if you are again intending to entrust these repairs to your local garage again, and that would seem to be a good move to me.
Worn bushes and suspension arms? No debate in my book - replace the arms complete with new bushes, otherwise you are going to have to pay labour to remove and refit new bushes into your old arms - not economic sense. I would spend once and wisely and invest in Lemforder arms. You can buy these at competitive prices via. EBay search, but if you are a follower of a certain abbreviated to 3 letter on line factors who offer attractive discounts on so called retail prices, then you could find yourself buying one of their own brands at an attractive price! Um. If you are entrusting the supply of the parts to your garage, then beware that they may be enticed to buy the ‘best deal’ parts on offer from their local motor factors. For me, I see no reason to depart from Lemforder.
Track rod end covers:- I’d simply replace the TREs as a pair - try Febi.
Spring? Yes replace both, but get your garage to double check that one is actually broken!
Shock absorbers - yes you can change them, but I would be tempted to give them a good coat of inspection, and leave them alone if not suspect.
Hope some of this helps,
Kind regards,
Gareth.