Saju

I got audi a4 2013 automatic diesel. There is some noise is coming from passenger side when i drive so i took my car to mechanic first he said ur gear box gone and recommend me to go to the specialist transmission. I wend there they test drive it bt didn’t find anything wrong in gearbox. They suspect driveshaft might be gone. I went back to my main mechanic he changed the driveshaft but problem remain same. Anyone please help me here . Noise increase with the speed and decrease with low speed

My audi a4 got front noise. Mechanic first told me ur gear box gone. I took this car to audi gear specialist. They test drive it and after checking they said ur gearbox is fine might be driveshaft gone. I replaced the driveshaft but voice is still coming.