Sat Nav Wrong Location

[mattieb5]

I had my Sat Nav, Cdplayer etc stolen from my 56plate X5. I have replaced them from a breakers yard, and everything works fine except the Sat Nav says the car is 2300 miles away from home in the Atlantic Ocean.
The disc is an original so I am struggling for an answer.

Thanks

[ca911]

Originally Posted by mattieb5

I had my Sat Nav, Cdplayer etc stolen from my 56plate X5. I have replaced them from a breakers yard, and everything works fine except the Sat Nav says the car is 2300 miles away from home in the Atlantic Ocean.
The disc is an original so I am struggling for an answer.

Thanks

have you driven yet at highway speeds for an extended period of time? it probably hasn't calibrated yet or found the almanac..

to find the almanac, park the car someplace with a clear view of the sky for about 15 minutes, you can check to see if almanac is found by going to the setting menu on the nav screen, and then pressing and holding the MENU button on the car. a secret menu will display and then you go to GPS and then I believe it is either status or tracking, but it will say ALMANAC and then YES or NO. If it is NO, then leave the car running outside until it switches to yes.

If it is yes, drive at highway speeds for an extended period, as this helps calibrate the car. Try this and let us know and hopefully we can help you out!

Oh and :xoutpost:

[mattieb5]

I have driven over 1000 miles since it was installed, including motorway, and its still says the same. The search data is all there, I can enter places, but when I put the map on the screen it places me miles away

[ca911]

Originally Posted by mattieb5

I have driven over 1000 miles since it was installed, including motorway, and its still says the same. The search data is all there, I can enter places, but when I put the map on the screen it places me miles away

try unplugging the MKIV unit, leaving it unplugged for a while, and then plug it in, this will force it to loose the almanac data and refresh it. use the steps above to reload the almanac.

[ca911]

here is a better write up than mine for calibration:


This is just what i was going to suggest next. Force the nav to recalibrate.

To do so:
Disconnect the nav by unplugging it completely. Wait until the nav powers down (red LED off) before unplugging. Wait 1 or 2 hours then reconnect.

The waiting time makes sure that the nav looses its almanac data and forces a recalibration.

To calibrate the nav observe the following:

Calibration After Install
After the first install of a nav unit, you must do 3 key actions to calibrate the nav.


Download Almanac
If the GPS almanac is not loaded, the nav is using default orbital data to determine what satellites should be visible. It can take longer to acquire a satellite fix when the almanac is not loaded. Almanac is lost when battery disconnected, and loaded automatically as follows:
Park the car outside, with the tailgate closed so the GPS antenna is not obstructed. Wait around 10 to 15min for the GPS almanac to be updated. You can observe the Almanac status in the service mode by selecting GPS, then Functions then GPS-Tracking info.

Calibrate Gyro Compass
The ignition should be in position 0 (off) during removal and replacement of the nav unit. After installing, close all doors, sunroof, bonnet and tailgate. A bus line reset will be carried out within two minutes. Resetting allows the gyro to perform a calibration run. Do not move or bump the car during this reset / calibration period. After a few minutes the calibration will be complete.


Calibrate Speed Pulse
If the speed is not calibrated, you will notice the nav is inaccurate and doesn’t always track the roads correctly.
Speed is constantly checked and calibrated, but it’s best to do a special calibration run after fitting the nav to ensure it works well for you straight away, as follows:
Take the car for a drive where you can travel over 50kmph, preferred is around 100kmph, for at least 5min steady speed. This will help the nav system calibrate the vehicle speed pulses against the calculated GPS vehicle speed.
To assist the map calibration, you should drive a few right-angle bends. Every time you take a corner, the nav re-corrects the map position to the calculated GPS position. Taking a number of right-angle corners gives the nav a number of points with which to fine-tune map and GPS position