CITROEN C5 Handbook page 258

BE4/5 GEARBOX TIGHTENING TORQUES (m.daN)
B2CKUB1D
Engine : RFN
Tightening torques m.daN.
(13) Primary shaft nut
(14) Secondary shaft nut
(15) Bearing retaining screw
(16) Differential gearwheel screw
(17) Gear control support screw
255
C8
: 7,5 ± 0,7
: 6,5 ± 0,6
: 1,5 ± 0,1
: 6 ± 0,6
: 1,5 ± 0,1