Both drivers have yet to score points this season but sensationally reached the final part of qualifying for the team’s home event in wet but gradually improving conditions.
Frijns claimed his second Formula E pole having dominated the final duel, setting a quicker time than his German team-mate in all three sectors to finish 0.632s clear, posting a 1m18.748s.
Both Abt drivers had been impressive during a damp FP3 earlier in the day with the race, the second of the weekend to be held at the Tempelhof Airport Street Circuit, also likely to be held in wet conditions.
Frijns had been fractionally slower than Saturday poleman Sebastien Buemi by the mid-point of their semi-final, but a mighty final sector meant the Abt driver finished 0.328s clear with a 1m18.743s.
Muller had a closer battle in his duel and only beat DS Penske driver Jean-Eric Vergne by 0.060s to make it an Abt final for the team’s home event.
Back-to-back Formula E winner Mitch Evans missed out on a semi-final spot after Frijns beat the Jaguar driver by only 0.069s, the Dutchman posting the fastest time in the quarter-final sessions with a 1m18.423s.
Muller had earlier beaten championship leader Pascal Wehrlein by more than three tenths in the first duel.
In a repeat of their duel from Saturday, the two Envision Racing drivers battled against each other in the quarter finals with a poor final sector costing Buemi against Nick Cassidy.
Source: Autosport