2004 320Ci Whats it Worth?

Finally thinking of selling the car. Have an eye on a 2010/11 325/330 in the UK. Will sell my own car privatly, but not sure of the value from looking at done deal, carzone etc. Any suggestions would be appreciated. Colm.

Model: BMW 320Ci M Sport Coupe
Price:
Mileage: 108,000 Miles/174,000 KM
Transmission: Manual
Fuel: Petrol
Exterior Colour: Black Sapphire
Interior: Light Beige Leather
Year: 2004
Owners: 3

Equipment:
High Gloss Shadowline
Sports Seats
M Sports Spoke Style 135M 8/8.5 x 18
Multifunction Steering Wheel
Remote Control Alarm
M Sports Package II
Sat Nav/CD/DVD/I Phone Connectivity
Bluetooth
First Aid Kit and Triangle
Auto-Dim Interior Mirror
Park Distance Control
Climate Control
Anthracite Head Lining
Run Flat Indicator

Service History:
13,459 Miles – Oil Service – Joe Duffy BMW
26,776 Miles – Inspection I – Joe Duffy BMW
39,366 Miles – Oil Service – Murphy and Gunn BMW
48,937 Miles – Inspection II – Murphy and Gunn BMW
56,518 Miles – Oil Service – Frank Keane BMW
64,956 Miles – Inspection I – Frank Keane BMW
71,428 Miles – Oil Service – Frank Keane BMW
78,976 Miles – Inspection II – Frank Keane BMW
82,729 Miles – Oil Service – Bloomfield Garage
93,230 Miles – Inspection II – Courtney Motors
99,671 Miles – Oil Service – Courtney Motors
106,049 Miles – Inspection I – Motor Confidence

Additional Work:
Engine Overhaul including Piston Rings and Valve Stem Seals - 2014
Expansion Tank - 2014
Air Flow Meter - 2013
PCV Valve - 2012

Additional Info:
NCT – August 2014
Tax: End December 2016
Kumho Winter Tyres included in sale
Shadowline Trim Wrapped - 2015