The strut has to be removed from the vehicle to open it or put it back together, using a strut spring compressor, PSE W-7200 tool or a similar tool to compress the coil spring. Note where you have service the struts so that you can keep the parts from getting mixed up. Hold the full length of the strut assembly in position so that the strut clevis faces outside and the steering arm is not blocked by the compressor sleeve, place a strut clamp on the coil spring and then remove the original strut shaft nut. Remove all the tension from the upper mount by working the coil spring down; then use Strut Nut Socket, Special Tool 6864 and hold the strut shaft while taking out the retaining nut. Take out the upper mount, then the clamp and strut from the coil spring. As you reassemble any of the seat, bearing, upper spring isolator, dust boot or coil spring, line up the seat bearing's flat to the front of the strut face. Relieve the tension from the coil spring, then pluck out the jounce bumper cup, jounce bumper and lower spring isolator from the strut shaft and the lower spring seat. Go through each part of the strut assembly to confirm there's no damage and fix any that are broken. When assembling, insert the coil spring into the compressor with it in place, then put on the upper spring isolator and dust shield on the seat and bearing and finally snap the seat and bearing over the coil spring. Place the lower spring isolator on the strut, next put on the jounce bumper and jounce bumper cup on the shaft. Press the strut down to the bottom of the coil spring until the spring's seat connects with the strut. Put the right upper mount on the strut shaft, loosely install the retaining nut and tighten it to 94 Nm (70 ft. lbs.) with Strut Nut Socket and a torque wrench. As you let out the tension from the coil spring, make sure the upper mount, seat and bearing are in the right place and attached, then remove the clamp and put the strut propulsion unit on the car.