CITROEN PICASSO DRIVESHAFT OIL SEAL (left side/nearside/passenger side)

This is how I changed or replaced the Citroen 1.6hdi grand Picasso left side or nearside or passenger side driveshaft gearbox oil seal.
Tricky, but we managed to sort it out. Things like this, are better bought from the main dealer often car because if the gearbox loses much oil, this can damage the gearbox.