| All contact surfaces must be cleaned when installing wax-coated components. The contact surfaces must be free of wax and grease. |
| Tightening torques refer to unoiled bolts and nuts. |
| Always renew self-locking bolts/nuts. |
| Always renew bolts and nuts which are tightened by turning through a specified angle. |
| Load-bearing components and other suspension parts must not be welded or straightened. |
| Do not subject coil springs to hammer blows or weld splashes and do not make any new colour markings. |
| Do not perform welding or cutting operations (using power grinders) near the coil springs or suspension struts. Cover up coil springs or suspension struts if necessary. |
| Make sketches or take photographs when unfastening or removing and installing hydraulic or pneumatic pipes or electrical wires. This ensures re-installation at the original location. |
| Any cable ties, brackets or fasteners removed during repair work must be re-attached at their original standard locations. |
| Before fitting the outer joint in the wheel hub, apply a thin coat of assembly paste to the splines on the outer joint → Electronic parts catalogue. |
| When working on the vehicle, do not allow the drive shafts to hang down under their own weight and never let the joints bend to such an extent that they contact the end stop. |
| Do not attempt to move the vehicle without the drive shafts fitted; this would result in wheel bearing damage. If the vehicle does have to be moved, always note the following points: |
| –
| Fit an outer joint in place of the drive shaft. |
| –
| Tighten outer joint to 120 Nm (twelve-point bolt) or 200 Nm (hexagon bolt). |
| Bonded rubber bushes can only be turned to a limited extent. The suspension must therefore always be in the unladen position or the reference position when the suspension link attachments are tightened → Chapter. |
| When working on the vehicle, do not allow the drive shafts to hang down under their own weight and never let the joints bend to such an extent that they contact the end stop. |
| If the wheel alignment has to be checked and adjusted at a later stage, all bolts and nuts which need to be slackened to make adjustments should initially only be tightened to the specified torque figure. After wheel alignment has been checked and adjusted, bolts and nuts must then be fully tightened by turning them through the specified angle. |
WARNING | All bolts and nuts must be fully tightened according to specifications before the vehicle is driven on public roads. |
|
| When performing repairs on vehicles with start/stop system, note the following: |
WARNING | Risk of personal injury caused by automatic engine start on vehicles with start/stop system. |
| t
| On vehicles with active start/stop system (indicated by a symbol and/or a message in the instrument cluster) the engine can start automatically under certain conditions. |
| t
| When working on the vehicle, it is therefore important to ensure that the start/stop system is deactivated (switch off ignition and switch on again if required). |
|
|
|
|
