Advice needed please 🙏🏻

[D14NNE]

So I took my A4 in for an MOT & service, and was given an inventory of costs totalling over £1594 to get it through the MOT…. 🤢 So I’m in a horrible situation where the MOT is going to run out very soon and I don’t want to get rid of my pride and joy 😔 The work that apparently needs doing is “renew fuel filter, renew dust & pollen filter, renew timing belt, wheel balance, renew front suspension link arm, renew throttle body & renew right rear coil spring. The engine light is stuck on and it looses power sometimes when accelerating”. Can anyone shed any light please? Thank you 🙏🏻 🚘