A youthful MK Dons side progressed in the Berks & Bucks Senior Cup following a convincing 4-1 success at Chalfont St Peter.
Chalfont’s Tony Mendy put the first chance wide of the target and Charlie Burns saved well shortly afterwards as the hosts created more early on.
However, the Dons grew into the game and soon enjoyed a good spell of pressure, with some good football from Giorgio Rasulo and Brandon Thomas-Asante earning a corner.
From the resulting set-piece, Tilney saw a shot blocked before Rasulo had one cleared away as the game approached the midway point of the half.
At the other end, Burns made a fine save to deny Mendy when he got down well to his left and pushed away the striker’s effort from 15 yards.
The Dons hit the front on 39 minutes when Tilney fired a low drive under Chalfont keeper James Warrington from just inside the 18-yard box.
Three minutes later, Kabongo Tshimanga doubled the Dons’ advantage in style – the striker cutting in from the right-hand side and firing an unstoppable 25-yard effort into the top right-hand corner.
Finn Tapp ensured the two-goal lead remained in tact with a fine block to thwart Mendy at the start of the second period.
It really should have been 3-0 on 51 minutes but Tshimanga turned his close-range shot wide after Tilney had kept George B Williams’ cross alive at the back post.
Callum Brittain curled an effort just over the top from 25 yards after cutting in from the right as the Dons came close to extending their lead once again.
The men from MK1 were looking very dangerous as the game past the hour-mark and only some last-ditch defending denied Tshimanga getting a shot off after some smart build-up play involving Rasulo.
However, Chalfont reduced the deficit on 62 minutes through Mendy, who scored with a close-range volley from a right-wing cross.
The Dons regained their two-goal lead midway through the half when Brandon Thomas-Asante beat a man as he came inside and found the net with a fierce 20-yard strike.
Warrington saved well from Tilney and Tshimanga sent a low drive not too far past the post as the Dons threatened a fourth goal.
The two combined as Mike Dove’s men wrapped up the win on 76 minutes when Tshimanga put the ball on a plate for Tilney, who made no mistake from close range.
Starting XI: Burns; Brittain, Tapp, Jackson, GB Williams (c); Logan,Osei-Bonsu; Thomas-Asante (Furlong 68), Rasulo, Tilney; Tshimanga.
Unused subs: Pickworth, Kioso, Omar, Nombe.
Goals: Tilney (39 & 67), Tshimanga (42), Thomas-Asante (67).