Remove the right air intake sleeve (1), - on models equipped with engine series 612, Disconnect the hose connector on the crankcase ventilation system.
Disconnect the connector (2) electrical circulating pump (M13).
Release fixing collars (3) and disconnect the hoses (4 and 5).
Remove the locker arch protection of the right front wheel.
Remove the mounting screws (6) and pull up, remove assemblage of the circulating pump (M13).
Installation is in the reverse order.
Finally, check the cooling system components for signs of leaks.