Replacing spark plugs on a Nissan Note: a complete guide with nuances

Replacing spark plugs with Nissan Note - a procedure that many owners put off until the last minute, until the engine begins to “triple” or fuel consumption increases by 10-15%. Meanwhile, timely replacement of these “little workers” not only saves gasoline, but also extends the life of the catalyst, preventing expensive repairs. In this article we will analyze everything: from choosing candles to step-by-step instructions with photos, and also reveal 3 critical errors, which 80% of car owners allow for the first independent replacement.

Models Nissan Note (including restyled versions E11 And E12) are equipped with gasoline engines HR12DE, HR15DE And HR16DE, where access to candles is relatively simple - but there are nuances. For example, on motors with a system direct injection (after 2012) special care is required when dismantling the coils so as not to damage the high-voltage wires. And if your Note released before 2010, most likely they are there single-electrode spark plugs with a gap of 1.1 mm - replacing them with modern multi-electrode ones can lead to malfunctions of the ECU.

When to change spark plugs on a Nissan Note: signs and regulations

Official regulations Nissan requires replacement of spark plugs every 30,000 km for ordinary nickel and 90,000–100,000 km for iridium or platinum. However, these figures are relevant for “ideal” conditions: high-quality fuel, a calm driving style and no overheating. In reality, signs of wear appear earlier:

• 🔥 Engine tripping at idle or during acceleration (especially noticeable when cold).
• ⚡ Misfires, recorded by the scanner as errors P0300–P0304.
• 💨 Increased fuel consumption by 1–2 liters per 100 km for no apparent reason.
• 🚗 “Twitching” of the car when driving at low speeds (2-3 thousand).
• 🔧 Difficulty starting the engine, especially in wet weather (the spark plugs “flood”).

If you ignore these symptoms, the consequences will be serious: from detonation in cylinders (which leads to destruction of the piston rings) until breakdown of ignition coils (replacing them will cost 5–8 thousand rubles apiece). For example, on Nissan Note E12 with engine HR16DE A common problem is cracks in the spark plug insulator due to overheating, which leads to current leakage and malfunction of the ECU.

⚠️ Attention: On cars with LPG (gas-cylinder equipment), spark plugs wear out 30–40% faster due to the higher combustion temperature of the gas. In this case, even iridium spark plugs are recommended to be changed every 60,000 km.

Which spark plugs are suitable for Nissan Note: part numbers and analogues

The choice of spark plugs depends on the year of manufacture, engine type and even the region of operation (cold climates require spark plugs with a lower heat rating). Original candles from Nissan are marked as 22401-JM00A (nickel) or 22401-4M015 (iridium), but they can be replaced with analogues from trusted brands. Below is the compatibility table for popular engines Note:

Engine	Original article	Recommended analogues	Gap (mm)	Heat number
HR12DE (1.2)	22401-JM00A	NGK IFR6A11, Denso IK16, Bosch FR7DPX	1.1	6
HR15DE (1.5)	22401-4M015	NGK IFR5A11, Denso IK20, Champion OE201	1.0–1.1	5
HR16DE (1.6)	22401-4M025	NGK IFR6T11, Denso IXUH22I, Beru Z323	0.9–1.0	6

When choosing analogues, pay attention to center electrode material:

• 🔹 Nickel - a budget option (price ~200 rubles/piece), but last up to 30,000 km. Suitable for a quiet ride.
• 🔹 Iridium/platinum — more expensive (from 800 rubles/piece), but can withstand up to 100,000 km and work better at high speeds.
• 🔹 Multielectrode (For example, Bosch Super Plus) - increase resource, but may conflict with ECUs on older ones Note (until 2010).

⚠️ Attention: On engines HR16DE after 2015, spark plugs were installed thin iridium electrode (diameter 0.6 mm). Replacing them with regular nickel ones will lead to misfires and an error. P0300.

Preparing for replacement: tools and safety precautions

To replace spark plugs Nissan Note you will need:

• 🔧 Candle key 16 mm with an extension (preferably magnetic or with a rubber seal).
• 🔧 Socket wrench 10 mm for unscrewing the ignition coils.
• 🔧 Torque wrench (optional, but recommended for precise tightening).
• 🧴 Dielectric grease (For example, CRC 2-26) for processing coil tips.
• 🧤 Gloves And compressor (or a can of compressed air) for cleaning wells.

Before starting work necessarily:

1. Cool the engine (working on a hot engine can cause the spark plug threads to break).
2. Disconnect the negative terminal of the battery (to avoid short circuit when removing the coils).
3. Check if there is any oil or coolant in the spark plug wells - their presence indicates broken cylinder head gasket.

Disconnect battery|

Clean the engine from dirt|

Check availability of tools|

Take a photograph of the location of high-voltage wires (if any)|

Prepare new spark plugs and lubricant -->

On Nissan Note E12 with engine HR16DE Access to the spark plugs is difficult due to the location of the intake manifold. To make the task easier, you can remove decorative engine cover and disconnect air duct (attached with 2 latches). On models with air conditioning, you will also have to move the coolant expansion tank (without draining it!).

Step-by-step instructions: how to change spark plugs on a Nissan Note

The process of replacing spark plugs Nissan Note takes about 1–1.5 hours the first time you try. Follow the instructions and don't skip steps - especially those related to well cleaning And tightening torque.

Step 1: Removing the ignition coils

1. Remove the plastic engine cover (unsnap the 4 clips).
2. Disconnect the power connector from the coil (press the metal lock and pull up).
3. Unscrew the bolt securing the coil with a 10 mm wrench and carefully remove it, rocking it from side to side (do not pull on the wire!).

Step 2: Removing Old Spark Plugs

1. Blow out the spark plug well with compressed air to remove dust and debris (dirt getting into the cylinder can cause burrs on the walls).
2. Insert the spark plug wrench into the well and unscrew the spark plug counterclockwise. If it “sticks”, do not use excessive force - process the thread WD-40 and wait 10 minutes.

Step 3: Installing New Spark Plugs

1. Check the gap on the new spark plugs with a feeler gauge (should correspond to the table above).
2. Apply a thin layer copper grease onto the candle thread (this will prevent sticking in the future).
3. Screw the spark plug in by hand until it stops, then tighten it with a torque wrench 20–25 Nm (for aluminum cylinder head). Without a dynamometer: tighten 1/2 turn beyond the “stop”.

Step 4: Assembly

1. Reinstall the ignition coils after applying dielectric grease to the tip.
2. Connect the power connectors (the latch should click).
3. Start the engine and check the operation: the speed should be even (800–900 rpm), without vibration.

What to do if a candle breaks off in a well?

If the central electrode of the spark plug remains in the block head, do not try to remove it yourself - contact service. Can be used for emergency repairs candle extractor (For example, Lisle 65600), but this requires experience. In 90% of cases, breakage occurs due to excessive tightening torque during a previous replacement or thread corrosion.

Common mistakes when replacing spark plugs on a Nissan Note

Even experienced car owners sometimes make mistakes that lead to serious damage. Here TOP-3 critical misses and their consequences:

1. Re-upholstery of candles — the tightening torque exceeds 30 Nm. Result: thread failure in an aluminum cylinder head (repair will cost 15–20 thousand rubles).
2. Using incompatible candles - for example, installation NGK BPR6ES (gap 0.8 mm) instead NGK IFR6A11 (gap 1.1 mm). This leads to misfires and error P0300.
3. Debris entering the cylinder - if you do not blow out the well before removing the spark plug, sand or metal shavings may cause scoring on the cylinder mirror.

Another common problem is damage to high voltage wires when dismantling the coils. On Nissan Note E11 (until 2010) the wires run separately from the coils, and their bending or tearing of the insulation leads to current leakage. Check the wires for resistance (should be no more than 10 kOhm).

⚠️ Attention: If, after replacing the spark plugs, the engine begins to “triple” more than before, check coil connection order. On HR16DE cylinders are numbered from right to left (when looking at the engine), and mixed up wires will lead to errors P0301–P0304.

What to do after replacement: checking and running in

After installing new spark plugs you must:

1. Reset ECU adaptations (if the engine was misfiring). To do this, disconnect the battery for 10 minutes or use a diagnostic scanner (for example, Launch CReader) to reset errors.
2. Check engine operation in different modes:
   • 🔹 Idling - the speed should be stable (800-900 rpm).
   • 🔹 Sharp acceleration - there should be no “failures” or twitches.
   • 🔹 Driving at high speeds (4-5 thousand) - check for detonation (knocking of “fingers”).

Monitor fuel consumption for 200–300 km. If it does not return to normal, there may be other problems (for example, dirty injectors or faulty lambda probe).

On vehicles with direct injection system (For example, Nissan Note 1.6 DIG-S) after replacing spark plugs it may be necessary throttle adaptation. To do this:

1. Start the engine and let it idle for 3 minutes.
2. Turn off the ignition for 10 seconds.
3. Repeat the start - the ECU will automatically adjust the parameters.

FAQ: Frequently asked questions about replacing spark plugs on a Nissan Note

Is it possible to change spark plugs one at a time if the others are still normal?

No, this is not recommended. Even if visually the remaining spark plugs look serviceable, they are still worn out. Replacing only one spark plug will lead to uneven operation of the cylinders, increased vibration and risk of detonation. An exception is if the spark plug fails due to mechanical damage (for example, a cracked insulator).

What is the difference between spark plugs for Nissan Note with LPG?

For cars with gas equipment, spark plugs with higher heat rating (1–2 units higher than standard) and reduced clearance (0.7–0.8 mm instead of 1.1 mm). This is due to the fact that the gas burns at a higher temperature. For example, for HR16DE suitable with HBO NGK IFR7A11 or Denso IK22.

Why do new spark plugs quickly become covered with soot?

There are several reasons:

• 🔹 Rich fuel mixture (lambda probe or mass flow sensor is faulty).
• 🔹 Oil entering the combustion chamber (Valve seals or rings are worn out).
• 🔹 Low fuel quality (additives do not burn completely).
• 🔹 Incorrect clearance between the electrodes (too large leads to a “richer” mixture).

If carbon deposits appear after 5–10 thousand km, it is required engine diagnostics.

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

Yes, but only special copper grease (For example, Liqui Moly Kupfer-Spray). It prevents spark plugs from sticking to the cylinder head and makes their removal easier in the future. Do not use graphite or lithium grease - they will burn out and form abrasive deposits. Apply lubricant thin layer only on the thread, avoiding contact with the electrodes.

Is it possible to drive with a faulty spark plug?

Short-term (1-2 days) - yes, but with caution. Long-term driving with misfires leads to:

• 🔹 Catalyst overheating (it may wear out and require replacement).
• 🔹 Increased wear of the piston group due to incomplete combustion of fuel.
• 🔹 Ignition coil breakdown (on a faulty spark plug it works with overload).

If the spark plug is “broken” (a crack is visible on the insulator), replace it immediately - this can lead to fire in the engine compartment.