Edinburgh’s solitary penalty leaves Michael Bradley’s men with a dismal tally of only 12 points in matches after four Pool One games.
The Parisians earned their win by virtue of their better haul from kicks at goal, with Gaetan Germain booting four penalties and Olly Barkley one, while Edinburgh’s counter came from Piers Francis.
The same two sides had served up a 95-point thriller when they met in the same competition last season, with Edinburgh posting a win that was instrumental in their progress to the semi-finals.
This encounter could scarcely have been further removed, with neither team producing any running rugby of note, and both wasting numerous scoring opportunities with the boot.
Scorers: Edinburgh: Francis pen. Racing Metro 92: Pens: Barkley, Germain 4.
Edinburgh: Tonks, Jones, Cairns, Atiga, Fife, Francis, Leck, Yapp, Ford, Cross, McAlpine, Gilchrist, McInally, Grant, Talei.
Replacements: S. Visser for Cairns (77), Hunter for Atiga (64), Rees for Leck (69), Jacobsen for Yapp (49), Nel for Cross (49), Parker for McAlpine (49).
Sin Bin: Talei (54).
METRO 92: Germain, Bobo, Bousses, Dumoulin, Imhoff, Barkley, Descons, Ben Arous, Szarzewski, Ducalcon, Ghezal, Van Der Merwe, Battut, Noirot, Cronje.
Replacements: Belie for Dumoulin (78), Hernandez for Barkley (69), Brugnaut for Ben Arous (68), Bianchin for Szarzewski (75), Orlandi for Ducalcon (67), Qovu for Van Der Merwe (64), Galindo for Noirot (50), Gerondeau for Cronje (71).
Sin Bin: Ben Arous (58).
Referee: Dudley Phillips (RFU).