11 74 555 Removing and installing/renewing the electrovalve for the exhaust-gas recirculation (N47D20 K/U/O/T 1)
Necessary preliminary tasks:
Remove front ACOUSTIC COVER .
Remove intake silencer housing . See 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE SILENCER HOUSING (N47 D16/20 K/U/O/T 1) or 13 71 000 REMOVING AND REFITTING/REPLACING INTAKE FILTER HOUSING (N47 D20 O 1 WITH SCR) .
Loosen the electric changeover valve (2) at the retaining clip (1) and pull off in direction of arrow.
Detach vacuum lines from electric changeover valve (2).
Disconnect plug connection on electric changeover valve (2).
Assemble engine.
Check function of DDE.