OEM Mercury Mariner Clock Spring

Mercury Mariner Clock Spring Parts and Q&A

• Clockspring
  8L8Z-14A664-A
  Q: How to Service and Repair the Clock Spring Assembly on Mercury Mariner?

  A:

  Depowering the Supplemental Restraint System (SRS) must be the first step to commence Clock Spring assembly service or repair since removing the correct Restraints Control Module (RCM) fuse with the ignition ON will activate the Air Bag warning indicator for safety purposes. Before returning the vehicle to the customer it is crucial to confirm that the SRS operates without defects. Start by detaching the driver air bag module followed by Steering Wheel tilting down while securing the tilt handle. Any servicing of the Clock Spring requires that both road wheels remain in a straight-ahead condition before steering wheel removal. The 2-piece upper steering column shroud requires removal as an assembling unit by tab release. The installation process begins by uninstalling the three screws from the lower steering column shroud followed by releasing the tilt column locking lever and then taking off the lower shroud. Remove the Clock Spring electrical connector while using caution to detach its mounting screws which sustain the Clock Spring unit. To avoid Clock Spring damage do not remove the anti-rotation key until putting in the steering wheel during installation. Place the Clock Spring into position while screwing it with the two screws before you connect the electrical connector. Fasten the lower steering column shroud back with its three screws then secure the upper shroud afterwards. Repeated centralization of the Clock Spring will prevent premature failure when proper centralization remains uncertain. Excessive rotation of inner rotor in the Clock Spring can injure the ribbon wire inside the device. Proceed to install the steering wheel after installing a fresh Clock Spring when the anti-rotation key was not taken out before. To correctly set the new inner rotor position rotate it counterclockwise until you feel minor resistance after which apply four clockwise turns to complete centralization. To verify proper centering check the positions of the Clock Spring rotor window and the alignment of the arrows present on the inner and outer rotors. The road wheels must position at 12 o'clock before installing the steering wheel and then follow the process of removing the anti-rotation key if present and installing the driver air bag module and activating the SRS system.