Hello everyone, im new here, glad to meet you all

My Discovery 2 td5 got some issues which are kinda hard to solve, i already drove it to 4 mechanical and none of them were able to find out where the problem comes from and solve it. Well, the vehicle is starting normaly, but the gearbox position on dashboard is stuck on D and blinking all the time, the car is very week when driving by the streets, seems like it lacks of power and after turning on the air conditioning it get worse, that the vehicle cannot even move from inertia,

1 - My mechanical tried to search for some errors with an scanner, but there is no errors according to his scanner

Someone had this same problem already ?

Thanks

 

These might not be your issues, but 2 of the main issues with these transmissions are voltage out of range and improper servicing of the fluid. Make sure your voltage is good. The gearbox ECU’s are really picky about voltage. And make sure you’ve serviced the fluid correctly. Do it exactly as per the manual. The engine has to be running when you check the level.

 

This sounds like a failing battery or a bad ground connection from the battery to the chassis/engine.
If you have not serviced the transmission recently, I would check the battery and connections first before trying to check the transmission fluid level.