New X5 owner here ....

[smi2710]

Just wanted to say hello and introduce myself. I just traded my E90 in on a X5. So far its great i have been wanting one ever since i drove a newer diesel X5. So i started looking for a older manual in a price range where i can own it outright and found;

2001 X5 5speed sport package Silver on Black leather 101k, one owner vehicle. with a few issues

1- leaky valve cover
2- i hope a bad battery ( eml light , brake , abs , traction control which go away if i turn the car off and restart or clean all other areas, maf, lcv, etc..)
3- dreaded pixels in stereo
4- OBC button doesn't work
5- passenger side lock, locks but doesnt unlock with key fob

any suggestions on fixes are welcome along with a few other questions i have

stereo shows telephone button and has the mic up in the overhead to the right of the door opener but when i press the button nothing happens??

any mods or upgrades i should do, Since the stereo bad whats the best upgrade option aftermarket or and original Nav unit ?

Since i moved backwards in some creature comforts from my E90 xi like the three blink blinkers for passing is there any thing else on these vehicles

also what are first maintenence items you guys recommend i do to ensure many more miles, I will do oil change , air filter ( plugs were just done ), brakes are new, tires new , i read something about cooling part upgrades,

Thanks guys
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