Depending on the model, your Mercedes-Benz Sprinter has a spare wheel. This is how you release it. Remove both covers on the spare wheel carrier, then use the tyre wrench to turn the bolts 20 times to the left. The spare wheel carrier is fastened underneath the vehicle by two safety hooks. Release the left-hand hook first. Then, assemble the pump handle, slide it into the case of the spare wheel carrier and release the right-hand safety hook. The spare wheel carrier can then be released slowly and the spare wheel can be removed.