Tightening torques for threaded connections (Mercedes-Benz S-Class W126)

Engine	280S and 280SE	380SE and 500SE	350SE and 450SE
Bolts for mounting the control on the frame (body) bracket	100-110	100-110	100-110
Hexagonal nut for fastening the steering knuckle to the steering knuckle shaft	160-200	160-200	160-200
Self-locking hex nut for mounting the pendulum arm	120	120	120
Nut with slots for longitudinal and transverse rods	35	35	35
Hex bolt on the tie rod clamp	20	20	20
Hexagon socket head cap screw for securing steering coupling	25	25	25
Hexagonal nut for fastening the steering wheel to the steering shaft	80	80	80
Countersunk head screw for fastening the pendulum arm to the steering knuckle	80	80	80
Hex bolt for attaching the pendulum arm to the steering knuckle	80	80	80
Steering damper on longitudinal steering rod or console/side member	50	50	50

Engine	280S and 280SE	380SE and 500SE	350SE and 450SE
Hex bolts for fastening the bearing cover to the steering gear housing	60-65	60-65	60-65
Allen bolts or hex bolts for securing the crankcase cover to the steering gear housing	30-35	30-35	30-35
Self-locking hex nut on adjusting bolt	60-65	60-65	60-65
Slotted or hex nut on bearing cap	140-160	140-160	140-160
Spline nut on the working piston	200-240	200-240	200-240

Engine	280S and 280SE	380SE and 500SE	350SE and 450SE
Hex nut on drive shaft	50	50	50
Return flow pipe on the pump	45-50	45-50	45-50
Steering return pipe	35-40	35-40	35-40
High pressure hose on the power steering pump	45-50	45-50	45-50
High pressure hose on the steering	25-30	25-30	25-30
Hex bolts or Allen bolts for securing the power steering pump bracket and holder to the cylinder block:
- M8 8.8	25	25	25
- M8 10.9	35	35	35
- M10 8.8	50	50	50
- M10 10.9	70	70	70
Chain retaining bolt	90	90	90