Can I add a GPS system to my BMW if it does not have a one?

It would be a LOT cheaper to buy a Garmin GPS dash unit.. anything the dealer does for this will be very costly.

Did you recently add Freon in your AC system? You might have too much Freon in the system, which caused the AC compressor to recycle more frequent than normal. Or you might not have enough Freon in the system. These BMW's are very AC system are very finicky. Get an AC gauge and check the level (high side & Low side) pressure.

Check fuses.

Are you trying to test it for accuracy? If so, yes it's possible but you'll need special equipment to test it, plus you need to remove it from the vehicle (depending on year, it changed a lot from 1983 to 2013, add a year in the comments will be helpful).

Your simplest option is to drive some known distance and check to see if the odometer reads that you traveled the same distance, or drive beside a friend with a good speedo and see if it matches yours. Or, most GPS systems will calculate your speed too.

You cannot just connect a wire to this system it is a Can-bus system and will cause problems if you connect to the wrong wire ,Take it to an expert BMW technician

Dear Sir,
You answered me that if there is not 2 CD slots, i will not have a GPS receiver for navigation, but also u aked one more question if my BMW car was US one, and i answered by Yes.
Waiting for another answer again.
Now I plan to borrought from any BMW owner i will find on the road, and who will have any DVD navigation disc, to insert it in my BMW and look for settings and fetch to know if i have a GPS receiver and what model .... if any..
The prime dealer in Lebanon will not help me fetching this, that's why i went for you..or for any friends i will find on the roads....
Thank you for your concerning
Best Regards
Pierre

Hello Richard, when the ulf module was installed, was the jumper plug installed in the blue 26 pin connector in the left rear corner near the GPS unit. I think that if this plug is missing, you will not get any sound for the interface. This plug is required for vehicles with nav. I think it is called the Voice Input jumper plug.

You can replace the old radio and cassette player with a new modern aftermarket dvd player gps navigation unit like this.
Car DVD BMW E46 Navigation System E46 DVD GPS Navi

It's with more features except navigation system, USB, iPod, AUX, SD, DVD player, rear view camera video input, and it's touch screen, easy operation.

The 2000 BMW uses a non silica based coolant. OK to use a silica free coolant. Dex-cool is the same. Just make sure it is SILICA free.
Silica based freon supposedly decreases the life span of the coolant system.