[texter]

Over the past two days I have noticed problems with the car's navigation - it is able to track the exact location of the car but it is unable to determine the direction in which you are going. ie. when driving down a straight road the system thinks I am going backwards, taking U-turns etc.... This makes the navigation impossible to use.

Any suggestions how to fix this problem?

[Jin-ActiveMotorwerke]

Never heard of this problem. What nav system do you have? Does it do it all the time?

[_ink]

I hate the BMW navigation system, its sucks hard! It doesn't show off ramps clearly, and it isn't clear or intuitive to the driver.

I got a hacked version of the BMW navigation for my previous car and that was a tonne loads better, i think it was based on iGo8 maps.

[texter]

It's Business Navigation. Pretty much gives me the wrong information most of the time, it now thinks I am travelling on a nearby parallel road when driving on the main road...

[Jin-ActiveMotorwerke]

Hard to say. I would start with reading faults on the car.
And I recall there is a way to read the GPS signal off the headunit. But you might need to find and shop to do these and get it diagnose.

[Jin-ActiveMotorwerke]

If you are in melbourne, you can come around and i can check the fault for you.