Hi! As you probably can see, I'm new to this site.

I've got an Mercedes Avantgarde, E220 CDI 2003 model.

I've got tiptronic on it, have gone around 150k or so kilometres (EU).

I've had this issue for a pretty long time now, and it's extremely annoying.

Problem is: When I drive (Mostly low gear and rpm), recently it comes a sound when you push the gas-pedal a little bit (very smooth) and it doesn't response very well, it shakes a little and makes a "BRR" sound. So you have to push the gas-pedal a little harder for it to raise over 2k rpm or so, so you can avoid the sound and buzzing.

Any suggestions on what they problem may be? I wan't to drive the car also in low rpm and slow sometimes, without having that annoying problem.

Please answer and come with suggestions, guy. May you have a great day as well, and thanks in advance!

- Nicuu