You replace ignition coils all at once. And if there were other things wrong, splitting things up would end up costing more.
BirdInFlight wrote:
Can you ask your mechanic if these are the kinds of repairs that can be split into priorities, or does it all have to be done at once?
If the repairs can be split into separate issues, you could ask for the most pressing thing to be done first, to get the car driveable again at least. Then take care of the rest bit by bit.
However, I know that sometimes one issue can't be repaired without also repairing another related issue, with cars.
Depending on how old your car is, what you bought it for and when, it may possibly be that the cost of repairs is more than what the car's actual worth is now. This was true of two used cars I had years ago, one after the other. They each cost under a $1,000, and if I'd been told an $800 repair bill it would have been not really sensible to put that much money into a used car I just about paid that much for in the first place, so instead I put the same money into just moving along to another similar used car -- but with the fresh start of that it at least ran and was less miles, so a kind of "start all over again" deal.