AUDI A4 2004 MODEL.why is the prnd flashing on the dashboard

SOURCE: when i put my 2002 audi a6 in reverse it does not

What I recommend is that you find your own personal "AUDI" mechanic and not a universal car mechanic. What they would do is only work and specialize in audi vehicles and detirmine you problem.
Hope this helps

SOURCE: ford focus.. the speed .

Check battery to motor and battery to body ground for corossion under bolts. Also check motor to body ground strap for condition and corossion. A bad ground can cause all kinds of problems.

SOURCE: AUDI A4 2003 1.8T TRANSMISSION CONTROL UNIT

where is the transmission control module located in my audi 2003 a4 1.8

SOURCE: all warning lights(e.g oil flow, charging/brake etc) and gauges(e.g temperature, speed meter, rave counter etc) on the dashboard have suddenly stopped working on my jeep grand cherokee 1996. also all

Could be a fuse, but to be sure take it into a shop and have them run a diagnostic on it. If they ask you to pay, call another shop. Or you can take it over to Auto Zone and they'll run one for you for free. If they can't tell you anything you'll have to bring it to a shop where they have more sophisticated diagnostic tools.

SOURCE: I drive a Toyota Chaser Tourer, when its very hot the ODO goes off, Speed meter drops, Car loses speed and ECT Power button flashes. what could cause the problem?

Check radiator for coolant - have a pressure test done on the cooling system. Check the radiator for blockages.