The facts:
Bought "SUV" from dealer in June 2024. Very happy with car, it's about 10 years old.
Part cash, part PX, part finance, total around £8000
July, engine light comes on
Advise dealer of this by phone.
They say, keep us in the loop.
Diagnostic check shows advisory that glow plugs might need changing in the future.
August, we get the aircon condenser replaced (we knew this needed doing, it formed part of the deal when buying the car)
The garage doing the aircon check the engine light and codes are P0380 glow plugs and P1489 low pressure EGR temp.
This diagnostic process involved some labour charges which were mixed in with the cost of diagnosing the aircon issues.
Next step - I called the finance company and they went through a list of questions, including "what is your preferred outcome?" the answer I chose is "fix the car" rather than "reject the car" as I do genuinely like it.
They said they will respond in 5 to 10 working days.
I'm thinking the first moral of the story is always part finance a used car no matter how caked up with money you are as the finance company will make sure the dealer does the right thing.

The finance co didn't just say "sorry we can't help you" so they must be doing "something".

The documents also clearly state that the finance co owns the car until the loan is repaid and it's my duty to maintain it properly.
I have no experience in this so if I get shot down in flames so be it