04 renault master dci120 sticking clutch pedal

[legsio67]

having recently purchased a 04 Renault master lwb DCI120 im having some issues with the clutch pedal not returning to its upright position when changing gear! had a quick look under the bonnet and its not like any clutch operating system ive ever seen! anybody had similar problems or knows why and how to fix advise would be greatly appreciated...