You are looking at the Gross vechicle weight which is pretty much the maximum the car will weigh wihen fully loaded to the max.
Audi A4 Avant (01-04) 1.9 TDI (130ps) 5d (6) - MPG, Dimensions & Performance | Parkers
2004 Audi A4 Avant 1.9 TDI B6 specifications, information, data, photos 249645
If you take the weight from the above link 1460Kg which is the vechicle kerb weight and add the max loading weight from your link of 550Kg = 2010Kg .
A normal car with driver is probably somewhere around 1550Kg .
Curb weight - Wikipedia, the free encyclopedia
1460kg is the Kerb weight and is : - Curb weight (US English) or kerb weight (UK English) is the total weight of a vehicle with standard equipment, all necessary operating consumables (e.g., motor oil and coolant), a full tank of fuel, while not loaded with either passengers or cargo.
This definition may differ from definitions used by governmental regulatory agencies or other organizations. For example, many European Union manufacturers include the weight of a 75 kilogram driver to follow European Directive 95/48/EC.[1] Additionally, organizations may define curb weight with fixed levels of fuel and other variables to equalize the value for the comparison of different vehicles.
Gross vehicle weight rating - Wikipedia, the free encyclopedia
Gross weight : - The gross vehicle weight rating (GVWR), or gross vehicle mass (GVM) is the maximum operating weight/mass of a vehicle as specified by the manufacturer[1] including the vehicle's chassis, body, engine, engine fluids, fuel, accessories, driver, passengers and cargo but excluding that of any trailers.[2] The term is used for motor vehicles and trains.
I think Audi may specify the weight of the car with 1/2 a tank of fuel and a 75Kg driver but even if not your 2200Kg is miles over.
Karl.