Parts for your 2009 Nissan Dualis-Oil seals

2009 Nissan Dualis Oil Seals

Oil seals are absolutely fitted to, and relevant for, the 2009 Nissan Dualis (J10, also known as Qashqai). This is supported by the Nissan Dualis/Qashqai J10 Electronic Service Manual (ESM, engine EM and transaxle TM/AT sections), the Nissan FAST parts catalogue for 2009 models, and Jatco documentation for the JF011E CVT. These technical sources list multiple oil seals across the engine, transaxle/differential, transfer case and rear final drive (on AWD variants). So, oil seals are a core service part on this vehicle.

On the 2009 Dualis, oil seals keep lubricants where they should be and contaminants out. Under the bonnet, the MR20DE engine uses a front crankshaft seal and a rear main seal to contain engine oil around the crank. The transaxle (manual or CVT) uses differential side shaft seals to prevent gear or CVT fluid from weeping where the driveshafts exit. AWD models add seals at the transfer case and rear final drive. When these seals harden, wear a groove on the shaft, or see excess pressure, they can start to mist, weep or leak.

They’re not a scheduled “replace-by-kilometres” item