Rubber mounts for front suspension springs:
- height 8 mm - part no. 115 321 4884
- height 13 mm - part no. 115 321 4984
- height 18 mm - part no. 115 321 5084
- height 23 mm - part no. 115 321 5184
Installing the rear suspension springs (rubber rear springs)
Rear suspension rubber mounts:
- height 9.5 mm - part no. 115 325 2244
- height 14.0 mm - part no. 115 325 2344
- height 19.0 mm - part no. 115 325 2444
Permissible combinations spring - shock absorber
Shock absorber test data
Spring test data
Ride height adjuster
Adjustment of the outlet valve for limiting the pressure in the hydraulic system - 30 + 6 bar
Safety valve adjustment:
- minimum pressure - 120 bar
- maximum pressure - 160 bar
Connecting rod for ride height adjuster
Spring energy accumulator (all models)
Gas pressure:
- nominal - 23±2 bar
- minimum - 15 bar
Oil pump MB or Tevers DPK 4/1
gear ratio (engine/hydraulic pump):
- 280 S and 280 SE - 2:1
- 350SE and 450SE - 2:1
Speed when checking pump performance*
- 280S and 280 SE - 200 rpm
- 350SE and 450 SE - 1650 rpm
Pump performance (all models)
- without and compression — 0.75 l/min
Front suspension
Front wheel hub:
- circle diameter for brake disc mounting bolts - 104.0 mm
- circle diameter for bolts of fastening of a disk of a wheel — 112.0 mm
- flange diameter for installing a brake disc - 79.97-80.00 mm
- allowable flange runout - 0.03 mm
- permissible radial runout of the flange seating surface - 0.05 mm
Lubricants:
for hub and cap multi-purpose or bearing grease quantity of grease:
- total - 60 g
- in the hub with bearings - 45 g
- in the hub cap - 15 g
Front wheel bearing clearances:
Axial clearance in the front wheel hub - 0.01... 0.02 mm
Axial clearance tester - 136 589 0421 or 116 589 1212 00 and dial indicator
Front suspension ball joints:
Upper and lower pivot pins
- Lubrication - long life lubrication
- The amount of lubricant - 5 - 6 g
Checking the condition of the hinges
There should be no gap between the ball pin and the hinge body, the ball pin must rotate relative to the body without jamming and squeaking.
Check the integrity of the protective cover.
Clearances in the pores of the front suspension:
Measure wheel clearance (at the bottom of the rim flange). Place a stand under the lower control arm to check.
Front wheel support:
- new car - 0.03 mm
- permissible wear limit - 0.10 mm
Stub axle bearings: no play in ball joints both new car and after a long run
Wishbone bearings: no gaps in the rubber-to-metal joints of the wishbones after a long run
Stub axle
Permissible runout of working surfaces at the bearing installation sites - 0.05 mm
Working surface diameters:
- outer bearing - 21.44 - 21.43 mm
- inner bearing - 34.93 - 34.92 mm
- stuffing box - nominal - 50.00 - 49.84 mm
Anti-roll bar front suspension:
- Part number - 16 323 5265
- Stabilizer diameter - 25.5 mm
- Stabilizer support number - 116 323 3685 and 116 323 3585
- The diameter of the hole in the rubber support of the stabilizer is 23.5 mm
- Hole eccentricity - 3 mm, indicated by a blue dot
- Front wheel alignment data - see separate section