New member here looking for advice. looking at an 05 GX470 here locally. looks in ok-decent shape maybe a little rough. interior isn't in bad shape.

from the brief look I took at it today the main issues are.
the motor sounds like it has a knock in it till it warms up then sounds fine.
the ODO doesn't work at all. the last recorded reading of the ODO was 234k miles.
check engine light is on (don't know what for at the moment)

what are things I should be looking at for maintenance needs on it?
they are asking $4999 for it but will try to talk them down to maybe $4,200 for it as it will need new tires right away. the dealer said the guy who traded it in had replaced some of the wear items recently but they didnt have any paper work to confirm this. I would plan on at least having one of the local toyota/lexus dealers look it over for me too. would be using this mainly has a commuter car for work/around town with it sitting for 2/3 of the time when I have a work truck.

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