145 Roof rack and hitch ›  Removable tow coupling ✓ The operating lever  A  is in the upper position. ✓ The release bolt  B  is protruding fully. The red as well as the green part of the release bolt is visible. ✓ The key is removed and the cap  C  attached to the lock. › Grab hold of the tow bar from below. › Insert the tow bar into the mounting recess until it clicks into place. ▶ When unlocking, no trailer or other accessories may be coupled to the tow bar. ▶ When attaching the tow bar, keep your hands out of the operating lever’s range of rotation. › Remove the cap from the lock. NOTICE Removing the tow bar CAUTION Applying The control lever ro- tates upwards and the release pin moves out. The red as well as the green part of the re- Danger of damage to vehicle! Put the protective cap onto the ball head before removing the tow bar. Risk of injury! lease bolt is visible. The green mark  A  must point upwards or the eye- let  B  must point downwards. › Turn the key. › Remove the key. › Fit the cap on the lock. › Insert the key into the lock. › Turn the key. › Grab hold of the tow bar from below. › Push the release bolt in as far as it will go, while at the same time pressing the operating lever as far as it will go. The green mark  A  must point upwards or the eye- let  B  must point downwards. The red mark or eyelet must be pointing upwards. Inspecting attachment The tow bar disengag- es and falls freely down into your hand. ✓ The tow bar sits firmly in the mounting recess. It has no clearance when it is shook with force.