How do you turn sat nav on when nav off is displayed

As long as you have the software to load into it will work.

you must return you car to the store where you buy the sat nav, for update and revision again. something is missing or bad installing.
God bless you

go to the supplier sat nav, and get the revision, they have support for the customer, and wait for fix it , from them. relax.

God bless you

Under route criteria make sure that the - route planning avoiding motorways - option is not ticked. Proactive IT Support PC Repairs Laptop Repairs Custom Built PC Leading IT...

if the radio beeps when you try to enter code , might be power to display unit, there is a small yellow fuse behind the ashtray, worth checking that has not blown

Mercedes commans sat nav version 4.1 for E220, is saying off road, and when at home is showing on map that I am somewhere in the National Park Peak District. I have been told to remove fuse for sat nav should be no 28 but in boot of car near sat nav cassette fuses in box only go upto 20. Am I looking in the right place?

If you don't have a Porsche dealer near you, check eBay for a Nav manual. Your car should have come with one though. Good luck!

Mercedes commans sat nav version 4.1 for E220, is saying off road, and when at home is showing on map that I am somewhere in the National Park Peak District. I have been told to remove fuse for sat nav should be no 28 but in boot of car near sat nav cassette fuses in box only go upto 20. Am I looking in the right place?

I had the same problem with the suspension on an o2 X5 Sport,it was the stabiliser pump in the rear,Range rover is the same pump and is cheaper than the BMW part,they also do an exchange unit.