Roomster
| Summary of components of rear axle with drum brake |
Note| t | Welding and straightening on axle body and axle studs not allowed. |
| t | Always replace the self-locking nuts and screws. |
| t | Always replace corroded self-locking nuts and screws. |
| t | Generally tighten the brake line pipe screws to a tightening torque of 14 Nm. |
| 1 - | Wheel bolt |
| q | Assignment → Electronic Catalogue of Original Parts |
| q | Tightening torque → Chapter |
| 2 - | Screw, 4 Nm |
| 3 - | Brake drum |
| q | Brake drum diameter, wear limit → Chapter |
| q | clean carefully, and check for wear, damage, dimensional accuracy and perfect brake surface |
| q | reset brake before removing the brake drum → Chapter |
| q | Thoroughly clean the centering hole of the drum before installing and subsequently treat it with approx. 0.5 g of anti-corrosion agent -AKR 322 000- |
Note| The anti-corrosion agent -AKR 322 000- must not get into the threads of the wheel screws! |
| 4 - | Cap |
| q | replace after each removal |
| q | extracting and inserting → Chapter |
| 5 - | Self-locking twelve-point nut 70 Nm +40° |
| q | replace after each removal |
| 6 - | Wheel hub with wheel bearing |
| q | for vehicles with ABS |
| q | Sensor ring for ABS is built into the wheel hub |
| q | wheel hub and wheel bearing form one unit; it does not need servicing. |
| q | The sensor ring for ABS cannot be replaced individually |
| q | removing and installing → Chapter |
| q | Assignment → Electronic Catalogue of Original Parts |
| q | Before installing the brake drum, thoroughly clean the centering shoulder for the brake drum and subsequently treat it with approx. 0.5 g of anti-corrosion agent -AKR 322 000- |
Note| The anti-corrosion agent -AKR 322 000- must not get into the threads of the wheel screws! |
| 7 - | Wheel hub with wheel bearing |
| q | for vehicles without ABS |
| q | wheel hub and wheel bearing form one unit; it does not need servicing. |
| q | removing and installing → Chapter |
| q | Assignment → Electronic Catalogue of Original Parts |
| q | Before installing the brake drum, thoroughly clean the centering shoulder for the brake drum and subsequently treat it with approx. 0.5 g of anti-corrosion agent -AKR 322 000- |
Note| The anti-corrosion agent -AKR 322 000- must not get into the threads of the wheel screws! |
| 8 - | Screw, 50 Nm + 60° |
| q | replace after each removal |
| 9 - | Brake carrier with brake shoe |
| q | repairing → Chapter |
| 10 - | Holder for hand-brake cable |
| q | replace after each removal |
| q | Fitting position → Chapter |
| 11 - | Hand-brake cable |
| q | removing and installing → Chapter |
| 12 - | Screw, 45Nm + 90° |
| q | replace after each removal |
| q | insert from the inside of the vehicle |
| q | tighten in unladen condition (unladen weight position) - do not load vehicle → Chapter |
| 13 - | Self-locking screw, 30 Nm + 90° |
| q | replace after each removal |
| q | if thread of the weld nut is damaged, it can be repaired using Heli-Coli threaded insert; while paying attention to the notes of the manufacturer |
| q | the rework of the thread for the weld nut is permissible on maximum 2 screw points per vehicle side |
| 14 - | Self-locking nut |
| 15 - | Mount for rear axle |
| q | avoid slackening in order to remove the rear axle |
| q | check the overall track of the rear axle after installation and adjust if necessary |
| 16 - | Holder for hand-brake cable |
| 17 - | Rubber-metal bearing |
| q | removing and installing → Chapter |
| 18 - | Socket nut |
| 19 - | Brake-power regulator |
| q | only on vehicles without ABS |
| q | testing and adjusting → Chapter |
| 20 - | Screw, 21 Nm |
| 21 - | Screw, 16 Nm |
| 22 - | Welded axle |
| q | Assignment → Electronic Catalogue of Original Parts |
| q | The locating face and the threaded holes for axle studs must be free from enamel and dirt |
| q | removing and installing → Chapter |
| 23 - | ABS wheel speed sensor |
| q | only on vehicles with ABS |
| q | Assignment → Electronic Catalogue of Original Parts |
| 24 - | Screw, 8 Nm |
| 25 - | bottom base |
| q | inspect for damage (visual inspection) |
| 26 - | Coil spring |
| q | removing and installing → Chapter |
| q | check for paint damage, if necessary eliminate paint damage |
| q | check colour coding |
| q | Assignment → Electronic Catalogue of Original Parts |
| q | replace axle-wise |
| q | per rear axle only use helical springs of the same make |
| 27 - | top base |
| q | installing → Chapter |
| 28 - | Screw, 40 Nm + 90° |
| q | replace after each removal |
| q | insert from the inside of the vehicle |
| q | tighten in unladen condition (unladen weight position) - do not load vehicle → Chapter |
| This operation can be skipped if the shock absorber with rear suspension has already been assembled → Chapter |
| 29 - | Screw, 30 Nm + 90° |
| q | replace after each removal |
| q | if thread of the weld nut is damaged, it can be repaired using Heli-Coli threaded insert; while paying attention to the notes of the manufacturer |
| q | the rework of the thread for the weld nut is permissible on maximum 2 screw points per vehicle side |
| 30 - | Shock absorber |
| q | removing and installing → Chapter |
| q | check → Chapter |
| q | disposing of → Chapter |
| q | can be replaced separately |
| q | Assignment → Electronic Catalogue of Original Parts |
| q | per rear axle only use shock absorbers of the same make |
| 31 - | Self-locking nut |
| q | replace after each removal |
| 32 - | Brake line |
| q | Tightening torque of the pipe screws: 14 Nm |
| 33 - | Axle stud |
| q | Straightening work is prohibited |
| q | Re-cutting the thread is not allowed! |
| q | removing and installing → Chapter |
| 34 - | Protection against stones |
| 35 - | Fixing element for protection against stones |
