Spark Plug Replacement for Nissan Almera 2000 - 2007 (N16)

Required Tools:

• Phillips screwdriver or 10 mm socket wrench
• 16 mm thin-walled spark plug socket with a rubber insert
• Torque wrench (recommended)

Replacement Procedure:

1. Disconnect the ignition coil connector by pressing the locking tab and pulling it off.
2. Unscrew the ignition coil retaining bolt using a Phillips screwdriver or a 10 mm socket.
3. Remove the ignition coil by pulling it straight up.
4. Unscrew the spark plug using a 16 mm thin-walled socket with a rubber insert to securely hold the plug.
5. Install a new spark plug. Start threading it by hand to avoid cross-threading, then tighten to a torque of 20–29 Nm.
6. Reinstall the ignition coil, secure it with the bolt, and reconnect the electrical connector. Repeat the process for the remaining three spark plugs.

Plug Type:

• Pre-facelift Almera (up to year 2002) models use short-reach plugs (19 mm), such as NGK BKR5E-11.
• Facelifted Almera models (from 2002) use long-reach plugs (26.5 mm), such as NGK LFR5A-11.

Using the correct plug type for your engine version is essential to ensure proper operation and avoid engine damage.