Replacing spark plugs on Nissan Note E11: original part numbers, interval and instructions

Replacing spark plugs with Nissan Note E11 - a procedure that many owners put off until the last minute, until the engine starts to “trouble” or catches fire Check Engine. Meanwhile, worn spark plugs increase fuel consumption by 10–15%, reduce acceleration dynamics and can lead to detonation in the cylinders. In this article we will look at how to choose the right candles for Note E11 with motors HR15DE (1.5 l) and HR16DE (1.6 l), when to change them, and how to do it yourself without mistakes.

Official regulations Nissan requires replacement of spark plugs every 30,000 km for ordinary nickel and 100,000 km for iridium. However, in practice, the interval depends on the quality of the fuel, driving style and operating conditions. For example, when driving frequently over short distances (when the engine does not warm up completely) or using low-octane gasoline, the spark plugs wear out within 1.5–2 times faster. We analyzed owner reviews and service manuals to create a checklist for a competent replacement.

Which spark plugs are suitable for Nissan Note E11: originals and analogues

For Nissan Note E11 (2006–2013) with gasoline engines HR15DE And HR16DE the manufacturer recommends original spark plugs Nissan 22401-JM00A (nickel) or Nissan 22401-4M025 (iridium). However, they can be replaced with analogues from NGK, Denso or Bosch with the same characteristics. The main thing is to comply heat number 6 and thread size M12 × 1.25.

The table below shows proven analogues indicating article numbers and average prices (for 2026):

Manufacturer	Article	Type	Price per piece, ₽	Notes
Nissan (original)	22401-JM00A	Nickel	450–600	Resource 30,000 km
NGK	IFR6A11	Iridium	800–1 000	Resource up to 100,000 km, the best choice for HR16DE
Denso	IK16	Iridium	750–950	Analogue NGK IFR6A11, suitable for gas
Bosch	0 242 236 566	Platinum	600–800	Resource 60,000 km, average quality
Beru	Z 322	Nickel	300–400	Budget option, resource 20,000–25,000 km

⚠️ Attention: Do not use candles with a heat rating lower than 6 (for example, NGK BPR5ES) - this will lead to detonation and damage to the pistons. Also avoid “universal” candles without an exact match to the thread size: on Note E11 carving M12 × 1.25, not M14, like on many other cars.

• 🔧 For engine HR15DE (1.5 l) optimal choice - NGK IFR6A11 or Denso IK16. They provide stable ignition and reduce fuel consumption.
• 💡 For HR16DE (1.6 l) the same models will do, but with the obligatory check of the gap - it must be 0.8–1.0 mm (for iridium spark plugs the gap is not adjustable!).
• 🚗 When using gas (GBO) it is recommended to reduce the gap to 0.7 mm or install candles Denso IW20 (article 5311).
• ⚠️ Fakes often found among cheap candles Bosch And Beru. Check the packaging for the presence of a hologram and buy only from authorized dealers.

When to change spark plugs: signs of wear and consequences of ignoring them

Official regulations Nissan - not a dogma. The actual service life of spark plugs depends on several factors:

• 🛢️ Fuel quality: When using gasoline with a lower octane rating AI-95 the electrodes become covered with carbon deposits 2–3 times faster.
• 🚗 Riding style: Frequent short trips (less than 5 km) do not allow the spark plugs to self-clean, which reduces their life by 30–40%.
• 🔥 Temperature: Engine overheating (for example, due to a faulty thermostat) leads to melting of the electrodes.
• ⚡ Condition of high-voltage wires: breakdowns in insulation increase the load on the spark plugs and shorten their service life.

If you ignore the replacement, the consequences will be serious:

⚠️ Attention: Worn spark plugs with a gap of more than 1.3 mm may cause misfireswhich leads to:

• 🔥 Detonation in the cylinders (characteristic metallic knocking noise during acceleration).
• 🛢️ Increased fuel consumption to 1.5–2 l per 100 km.
• 🚗 Loss of power (the engine “does not pull” at high speeds).
• 💥 Damage to the catalyst due to the ingress of unburnt fuel (repair will cost 20 000–40 000 ₽).

How to determine when it’s time to change spark plugs:

1. Visual inspection: The normal color of the electrode is gray-brown. White coating or oil deposits indicate problems with the fuel system or valve stem seals.
2. Checking the gap: Use a feeler gauge. If the gap exceeds 1.1 mm (for nickel spark plugs), replacement is required.
3. Engine diagnostics: errors P0300–P0304 (misfires) often indicate worn spark plugs.

Step-by-step instructions: how to change spark plugs on a Nissan Note E11 with your own hands

Replacing spark plugs with Nissan Note E11 does not require special skills, but there are nuances that will help you avoid mistakes. For example, on the HR16DE engine, access to the spark plugs of the 2nd and 3rd cylinders is difficult - you will need to remove the intake manifold or use an extension for the spark plug wrench. It is better to perform the work on a cold engine so as not to strip the threads in the cylinder head.

Required tools:

• 🔧 Candle key on 16 mm with a rubber seal (so as not to damage the insulator).
• 🔩 Extension and ratchet handle.
• 🧲 Magnetic “fishing rod” for removing candles from deep wells.
• 🔧 Torque wrench (optional, but recommended for precise tightening).
• 🧴 Penetrating lubricant (e.g. WD-40) for soured threaded connections.

Step by step process:

1. Preparation: Disconnect the negative terminal of the battery to avoid short circuit. Remove the plastic decorative engine cover (it is secured with 4 latches).
2. Access to candles:
   • On HR15DE The candles are located openly, easy access.
   • On HR16DE You will need to remove the intake manifold or use a flexible extension.
3. Removing old spark plugs:
   • Remove the high-voltage wires by pressing the plastic clip and pulling up. Do not pull on the wire itself!
   • Blow out the spark plug wells with compressed air to prevent dirt from getting into the cylinders.
   • Unscrew the spark plugs with a wrench 16 mm. If the threads are stuck, use a penetrating lubricant and let it sit for 10-15 minutes.
4. Installing new spark plugs:
   • Check the gap (for nickel spark plugs - 0.8–1.1 mm).
   • Apply a thin coat to the thread copper grease (For example, Liqui Moly Kupfer-Spray) to prevent sticking.
   • Screw the spark plugs in by hand, then tighten firmly 20–25 Nm (without a torque wrench - 1/4 turn after the “stop”).

Assembly: Connect the high-voltage wires in reverse order (it is important not to mix them up!). Install the decorative cover and connect the battery.

What to do if the spark plug breaks off when unscrewing?

If the spark plug electrode remains in the cylinder head, do not try to remove it yourself - this may damage the threads. Contact a service center that uses a special extractor. The cost of the service is from 1,500 to 3,000 rubles.

Common mistakes when replacing spark plugs and how to avoid them

Even experienced car owners sometimes make mistakes that lead to serious damage. Here are the most common of them:

• ⚡ Re-upholstery of candles: when tightened with more force 30 Nm You can strip the threads in the aluminum block head. Consequences - repair with replacement of the insert or the cylinder head itself (from 15 000 ₽).
• 🔧 Using the wrong key: a wrench without a rubber seal can break the spark plug insulator, and an extension that is too long can bend the electrode.
• 🛢️ Dirt getting into the cylinders: If you do not blow out the wells before removing the spark plugs, grains of sand can cause scuffing on the cylinder walls.
• 🔌 Mixed up high voltage wires: This results in misfire and error P0300. Connection procedure Note E11: 1st cylinder - closer to the timing belt, 4th - to the gearbox.

⚠️ Attention: If after replacing the spark plugs the engine begins to work worse (vibrations or an error appears Check Engine), check:

1. Correct connection of high-voltage wires.
2. Tightening the spark plugs (they may not have reached the stop).
3. Condition of the ignition coils (at Note E11 they often fail at the same time as the spark plugs).

Another typical problem is flooded candles after replacement. This happens if:

• Candles with the wrong heat rating were used (too “cold”).
• The engine was cranked with the starter for a long time without starting (for example, with a weak battery).
• Oil gets into the cylinders due to worn valve stem seals.

Spark plugs and gas equipment: what owners of Nissan Note E11 on gas need to know

If your Nissan Note E11 equipped with gas cylinder equipment (GBO), spark plugs wear out 20–30% faster. This is due to the higher combustion temperature of the gas and the lower lubricity of the fuel mixture. As a result:

• 🔥 Electrodes overheat and melt.
• ⚡ The gap between the electrodes increases.
• 🛢️ Risk increases reverse claps (explosion of the mixture in the intake manifold).

Recommendations for cars with HBO:

• 🔧 Reduce the gap to 0.7–0.8 mm (even for iridium spark plugs).
• 💡 Use gas candles:
  • Denso IW20 (article 5311) is the best option for HR16DE.
  • NGK LPG LaserLine 2 (article IFR6G11) - with a thin iridium electrode.
• 🔥 Check the condition of the spark plugs often - every 15,000–20,000 km.
• ⚠️ Avoid cheap nickel spark plugs - they fail after 5,000–10,000 km on gas.

Signs that candles are not “friendly” with HBO:

• 🚗 The engine starts poorly “in cold weather” (especially in winter).
• 🛢️ Gas consumption has increased by more than 1.5 l/100 km.
• ⚡ Popping sounds appear in the exhaust or intake.

Frequently asked questions about replacing spark plugs on Nissan Note E11

Can I use platinum spark plugs instead of iridium spark plugs?

Yes, but keep in mind that platinum candles (for example, Bosch 0 242 236 566) have a smaller resource - about 60,000 km against 100,000 km in iridiums. They tolerate high temperatures less well, so they are changed more often on engines with gas equipment. If you only drive on gasoline, the difference will be negligible.

What should be the gap on new spark plugs for HR16DE?

For HR16DE with iridium spark plugs (NGK IFR6A11, Denso IK16) gap not regulated - it is specified by the manufacturer and is 0.8–1.0 mm. For nickel spark plugs (eg Nissan 22401-JM00A) the gap should be 1.0–1.1 mm. Check it with a round probe, not a flat one - this is more accurate.

What happens if you don’t change spark plugs for more than 100,000 km?

When running over 100,000 km on nickel spark plugs:

1. The electrodes are completely worn out, the gap increases to 1.5 mm or more, which leads to misfires.
2. The insulator becomes covered with microcracks through which current passes - this causes spark “leakage” and unstable operation of the engine.
3. Unburned fuel enters the cylinders, which dilutes the oil and accelerates wear of the piston group.
4. The catalyst becomes clogged with soot and fails (replacement will cost 20 000–40 000 ₽).

With iridium spark plugs, with such a mileage, usually only the central electrode wears out, but the risk of detonation remains.

Can candles be cleaned and reused?

Theoretically yes, but in practice it is inappropriate. Even after ultrasonic or sandblasting:

• The metal of the electrodes becomes porous, which accelerates their further wear.
• The insulator loses its dielectric properties due to microcracks.
• The service life of “remanufactured” spark plugs rarely exceeds 5,000–10,000 km.

The exception is iridium spark plugs with mileage up to 60,000 km, which became oily due to faulty caps. They can be cleaned and used further, but only after the cause of contamination has been eliminated.

Do I need to lubricate the spark plug threads during installation?

Yes, but only copper grease (For example, Liqui Moly Kupfer-Spray or Permatex Anti-Seize). It prevents:

• Thread sticking to the cylinder head (important for aluminum cylinder heads).
• The spark plug jams at the next replacement.

⚠️ Do not use graphite or lithium grease - they burn out and form abrasive deposits. Apply lubricant thin layer, only on the thread, avoiding contact with the electrodes.