The Blues fought back from 2-0 down to record a comeback win against the League Two sides in their pre-season friendly on Saturday, with Jose Mourinho naming an experimental team.
Having beaten Wycombe Wanderers 5-0 in their first pre-season fixture on Wednesday, Chelsea would have expected a similarly strong showing against Wimbledon at Kingsmeadow.
Chelsea improved after the break, however, and three goals in the last 15 minutes saw it complete their comeback
Center back Terry - on as a halftime substitute - scored either side of Salah's equalizer, while young midfielder Lewis Baker had a hand in all three goals.
Wimbledon made a flying start and Mark Schwarzer was picking the ball out of visitor's goal inside 40 seconds as Bennett leapt above Andreas Christensen to head home a corner at the back post.
Chelsea applied plenty of pressure in an attempt to get back into the game with midfielder Jeremie Boga looking particularly lively, but the away side was frustrated by Wimbledon's deep defensive line.
Things worsened for Chelsea five minutes before the break. Kurt Zouma, signed from St Etienne in January, was adjudged to have brought down Tubbs in the area, and the striker picked himself up to cooly dispatch the penalty to the right of Schwarzer.
The away side upped its game after the break, and Marco van Ginkel wasted a great chance to pull a goal back when he headed straight at goalkeeper James O'Shea.
Chelsea did find a goal in the 74th minute, however, Terry poking home after a spell of pinball in the Wimbledon box from a Baker corner.
Parity was restored with seven minutes remaining when Salah drilled home a left-footed half-volley after collecting Baker's pass.
And the comeback was complete in the 89th minute, as Wimbledon failed to deal with another Baker corner, leaving Terry free to head home the winner.