Engine serial number

MR20DE

QR25DE
The number is stamped on the engine as shown.
See also:
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 ...
Intelligent Key battery
Replace the battery in the Intelligent Key as
follows:
1. Remove the mechanical key from the Intelligent
Key.
2. Insert a small screwdriver into the slit of the
corner and twist it to separ ...
Loose fuel cap warning
Loose fuel cap warning
The LOOSE FUEL CAP warning appears on the
vehicle information display when the fuel-filler
cap is not tightened correctly after the vehicle
has been refueled. It may ...
