Rear Subframe Mounting Bushings, Removing And Installing - BMW 5251 Service Manual

Rear Suspension
-
Remainder of installation is reverse of removal, noting the fol-
lowing.
Tighten suspension arm and shock absorber fasteners to
final torque only afler vehicle has been lowered and sus-
pension has settled.
Tightening torques
ABS
pulse sensor to wheel bearing carrier
8 Nrn (6 ft-lb)
Air line connection
2
Nrn (18 in-lb)
Brake rotor to hub
16 Nrn (12 ft-lb)
Driveshaft
CV
joint to final drive flange
-
MI0 (Torx bolts)
70 Nrn (51 ft-lb)
-
M B (compression nut) 32
Nrn (24 ft-lb)
Rear brake pad carrier (caliper) to wheel
65 Nrn
(48
ft-lb)
bearing carrier
Road wheel to hub 120ilO Nrn
(89
i-7 ft-lb)
Rear subframe mounting bushings,
removing and installing
-
Remove rear subframe mounting bolts as described earlier.
Lower subframe approximately 40
-
45 mm (1 -2 in).
4
Install BMW special tools 33 4 140,33 4 151,33 4 154,33 4
155,33 4 156 as shown.
Use hot air gun with a maximum output temperature of
600°C (1100" F) to heat bushing area of subframe for no
more than 2 minutes. Remove rubber mount from sub-
frame.
CAUTION-
Aluminum suspension parts may be severely damaged
witli intense heat
* Heating for 2 minutes with the recommended heat
source is intended to keep the temperature of the alu-
minum parts below the safety threshold of 80°C
(1
76°F).
.