Engine serial number


MR20DE

QR25DE
QR25DE

The number is stamped on the engine as shown.

    See also:

    Engine block heater (if so equipped)
    WARNING: - Do not use your engine block heater with an ungrounded electrical system or a 2-pronged adapter. You can be seriously injured by an electrical shock if you use an ungrounded connec ...

    Before starting the engine
    ● Make sure the area around the vehicle is clear. ● Check fluid levels such as engine oil, coolant, brake fluid, and windshield-washer fluid as frequently as possible, or at least when ...

    Nissan vehicle immobilizer system
    The NISSAN Vehicle Immobilizer system will not allow the engine to start without the use of the registered key. If the engine fails to start using a registered key (for example, when interferen ...