EGR Valve Replacement — OM646 (NCV3 Sprinter)
Mercedes-Benz Sprinter NCV3 (Model 906) · 2.1L 4-cylinder OM646 CDI
Replace the electric EGR valve on the OM646 four-cylinder NCV3 Sprinter. Covers coolant draining, intake-pipe removal, the four EGR-valve bolts, the new gasket and O-ring, the cooler-to-valve seal, electrical reconnection, and the post-install adaptation reset.