2009 Audi A4 shaking during startup?

[Rahi]

My Audi has recently started to shake when I turn on the vehicle. It's most noticeable when the RPM is over 1 RPM and when it starts to go below 1 RPM, that is when I feel the shaking when I'm sitting in the car. My dealership tells me that all Audi A4's shake during cold and warm weather, but to me it just recently started happening and it makes no sense to me how weather is a factor in why it could make the car shake.

Any thoughts? I think it might have to do with carbon build up or some type of build up which is trying to get released and while doing that makes the bottom of the vehicle shake.

[hornchurchmale]

it ought not to shake as such . slight vibration or uneven running may? be common but for most vehicles it signifies improper firing and fuel burning.
a diagnostic check ought to be carried out. a component breaking down can do this too but may simply be a poor sensor signal at low speed. here a skilled technician can or should eb able to sort.