Loosen the fastening of the car alternator. Press it inwards and remove the V-belt.
Unscrew the control belt protective shield. A hex key is required to remove the socket screw.
Crank the engine until cylinder 1 is at top dead center. Use the ignition timing markings when doing this.
Loosen the timing belt tensioner pulley and remove the timing belt. Tighten the belt in a way that is convenient for you so that it cannot slip off the camshaft flywheel, but do not tie the belt, as it may bend. Now do not turn the engine any more.
Holding the camshaft flywheel in a way that is convenient for you (for example, by putting an old toothed belt on the flywheel), disconnect the flywheel screw. Remove the screw and washer.
Using pliers, remove the woodruff key from the camshaft.
Screw the camshaft flywheel screw together with two washers as far as possible towards the end of the shaft.
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Take the removal tool 2085 in your hands and turn the inner section (A) two turns (about 3 mm) from the outer section and lock in this position with the locking screw (B).
Lubricate the threaded head of the tool with oil, slide it onto the camshaft and oil seal ring while pressing the slip ratchet clutch, and screw the tool into the oil seal ring.
Loosen the knurled screw (B) and screw the inner section (A) towards the camshaft until the seal ring comes out.
Clamp the tool in a vice and use pliers to pull out the oil seal ring. Lubricate the sealing edge and the outer surface of the new seal ring with oil. Use a section of pipe of a suitable diameter to install the new oil seal ring. The pipe must be fully seated on the outer perimeter of the seal ring. Position the seal ring without tilting and drive it in until its flange rests against the outer surface. Do not drive the seal ring all the way in, otherwise it may block the oil recirculation hole. You can also insert the oil seal ring in the same way as described for replacing the front crankshaft seal ring.
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