– Insert the anti-theft wheel bolt adapter into the anti-theft wheel bolt as far as it will go. ● If the tightening torque of the wheel bolts is too low, the wheel bolts and thus the wheel can become loose while the vehicle is in mo- tion. The wheel bolts and the threads could be damaged if the tightening torque is too high. – Push the box spanner onto the adapter as far as it will go. – Hold the end of the box spanner and turn the wheel bolt anticlockwise for one turn → . An important note on wheel bolts The structure of the rim and wheel bolts must match that of the original wheel.
If other types of rims are installed, wheel bolts of appropriate length and bolt head shape must be used to en- sure that the wheel is firmly installed and the braking system works properly. If the wrong wheel bolts are used, the wheel bolts can come loose while driving and lead to loss of control over the vehicle, serious acci- dents and fatal injuries. WARNING ● Always use wheel bolts that match the wheel rims and the vehicle type. Never use wheel bolts of other wheels, including those of other vehicles of the same type. ● Never use different wheel bolts. Tightening torque for wheel bolts Specified tightening torque for wheel bolts for steel or alloy wheel rims: 140Nm .
After replacing the wheel, check the wheel bolt tightening tor- que at our qualified workshop immediately. Spare wheel and Temporary spare wheel If the wheel bolts are corroded and stiff, they must be renewed and the wheel hub threads cleaned before the tightening torque is checked. Please refer to at the start of the chapter on page 198. Never grease or oil the wheel bolts or the threads of the wheel hubs, otherwise the bolts may come loose while the vehicle is moving even if they are tightened to the specified tightening torque. WARNING Incorrectly tightened or missing wheel bolts can lead to loss of control over the vehicle, se- rious accidents and fatal injuries.
● Make sure that the wheel bolts and threads of the wheel hubs are clean, smooth running and free of oil and grease. ● Always use wheel bolts that match the wheel rims and the vehicle type. Fig. 154 In the luggage compartment: handwheel for securing the spare wheel or temporary spare wheel; ● Only loosen the wheel bolts by approximate- ly one turn before raising the vehicle with the jack. Take out temporary spare wheel – Open the boot lid. ● Never grease or oil the wheel bolts or the threads of the wheel hubs, otherwise the bolts may come loose while the vehicle is moving even if they are tightened to the specified tightening torque. – Fold up or remove the luggage compartment floor.
→ page 145 – Fully unscrew the handwheel in the middle of the spare wheel or temporary spare wheel → Fig. 154 1 anticlockwise ● Never loosen the bolts on wheel rims with bolted-on rim rings. – Take out temporary spare wheel. Owner's manual 200