99k and needs a clutch, just one of those things, I asked myself the same question about my wifes mk4 golf, 03 plate and needed a new catalytic convertor last year along with the 2 lamba sensors,,,, cost £1000 just for that alone due to them being oem parts,,,, on an 03 golf that's a lot but tbh if I sold the car I prob would just have bought another with problems for the money I would have got for it,
all in all golfs are good reliable cars and although hers is only worth around £2.5k she wouldn't sell it for £5k as it is solid, had it from new and we know it back to front.
just one of these things mate with the clutch, if she is a good car keep her