Is it possible to get navigation in your BMW if it does not already have navigation pre installed

I will be away for three months at a time and my bmw will be stored indoors. How often should the car be started to keep the battery up?

Austin Thorne    2019-27-08

Is it possible to get navigation in your BMW if it does not already have navigation pre installed

Shah    2019-15-09

Think i have been done dirty by recent mechanic, he says the filled the oil up with top of the line oil and this and that but my computer reads that it needs plus 1L and before the service i had it around the max level as i filled up myself recently. I opened up the bonnet and checked inside the engine for oil with a flashlight and there was oil as far as i could see. Just wondering if you can visually see the oil level in the engine if you open up the cap and look inside?

Bayley    2019-15-09