The Top 14 side are still without a win after four matches in the competition and can no longer qualify for the quarter-finals.
They are level on six points after four matches with their English opponents who have only managed one win this season.
Both teams are trailing table-toppers Leinster, who are have 16 points from four matches while second-placed Glasgow Warriors have 10 points after the same fixtures.
Montpellier will be looking to avenge their 16-13 defeat to Bath at the Rec during round two of the competition.
Bath's Dan Hipkiss, Tom Heathcote, Charlie Beech, David Wilson and Ben Skirving all return to the starting line-up for the tie.
Hipkiss comes into the outside centre role to partner Matt Banahan, whilst Olly Woodburn and Tom Biggs continue on the wings, and Nick Abendanon slots in at full-back.
Tom Heathcote starts at fly-half, partnering Michael Claassens in the half-backs.
Charlie Beech and David Wilson prop down either side of Ross Batty at hooker, with Dave Attwood and Ryan Caldwell once again combining in the engine room.
Ben Skirving starts on the blindside flank, with Francois Louw and Simon Taylor completing the pack at openside and number eight respectively.
Montpellier:15 J-B Peyras Loustalet, 14 Timoci Nagusa, 13 Geoffrey Doumayrou, 12 Thomas Combezou, 11 Pierre Bérard, 10 Santiago Fernandez, 9 Benoit Paillaugue, 8 Masi Matadigo, 7 Rémy Martin, 6 Vassili Bost, 5 Joe Tuineau, 4 Mickael Demarco, 3 Maximiliano Bustos, 2 Mickael Ladhuie, 1 Mikheil Nariashvili.
Replacements: 16 Joan Caudullo, 17 Na'ama Leleimalefaga, 18 Kevin Kervarec, 19 Drickus Hancke, 20 Alex Tulou, 21 Julien Tomas, 22 Yoan Audrin, 23 Martin Bustos Moyano.
Bath:15 Nick Abendanon, 14 Olly Woodburn, 13 Dan Hipkiss, 12 Matt Banahan, 11 Tom Biggs, 10 Tom Heathcote, 9 Michael Claassens, 8 Simon Taylor, 7 Francois Louw (c), 6 Ben Skirving, 5 Ryan Caldwell, 4 Dave Attwood, 3 David Wilson, 2 Ross Batty, 1 Charlie Beech.
Replacements: 16 Pieter Dixon, 17 David Flatman, 18 Anthony Perenise, 19 Andy Beattie, 20 Guy Mercer, 21 Chris Cook, 22 Sam Vesty.
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