You could take that Chassis No into a dealership and they'd be able to look it up.
Or, you could look in the service history book or the boot of the car for the sticker which gives a load of 3 letter codes.
Like this:
All the codes tell you what options were installed in your car.
Then type all the codes into this website:
http://www.igorweb.org/equidec/ and it'll tell you what you've got.
Something like this:
E0A = no special edition
1D0 = without towing attachment
5SL = outer left rear view mirror: non-spherical
5RQ = outer right rear view mirror: convex
1KF = disc brakes, rear
6FB = body-colored outer rear view mirror housings
1AT = electronic stabilization program (ESP)
3FA = without roof insert (standard roof)
1N3 = speed-related variable steering assist (Servotronic)
1NL = covers for alloy wheels
H6L = tires 225/45 R 17 91with Y tire width restricted to 219mm
4UF = drivers and front passenger airbag with front passenger airbag deactivation
4R4 = power windows with comfort operation andcircuit breaker
B59 = type approval Republic of Slovakia
3QT = 3-point seat belts with tensioner and height adjustment, front
4X3 = side airbag front with curtain airbag
4A3 = seat heater for front seats separately controlled
