Replacing candles on Nissan Qashqai

Replacement of spark plugs is included in the mandatory list of maintenance work for Nissan Qashqai gasoline engines. The quality and stability of the engine and ignition system depends on the condition of the spark plugs. Consider how and when to change Nissan Qashqai spark plugs.

Nissan Qashqai J10 with HR16DE engine

When to change candles for Qashqai?

The original iridium spark plug electrode must have this welding

Compliance with the factory regulations for replacing spark plugs on a Nissan Qashqai will reduce the possible equipment failure, as well as ensure proper ignition of the air-fuel mixture. For Nissan Qashqai with 1,6 and 2,0 liter gasoline engines, the manufacturer recommends changing the spark plugs every 30 km or every two years. Experience shows that Nissan Qashqai factory spark plugs work up to 000 km. Signs of malfunction are as follows:

• deterioration in vehicle dynamics;
• long engine start;
• motor trot;
• interruptions in the operation of the internal combustion engine;
• increase in gasoline consumption.

It is not easy to distinguish a fake by packaging

If these problems occur, replace the spark plugs. If the malfunctions are not caused by problems in other engine components. At the same time, all spark plugs for Nissan Qashqai must be replaced immediately, both during scheduled and unscheduled replacement.

Which candles to choose for Nissan Qashqai?

The Nissan Qashqai J10 and J11 powertrains use spark plugs with the following specifications:

• thread length - 26,5 mm;
• melting number - 6;
• thread diameter - 12 mm.

Devices with platinum or iridium electrodes have a longer resource. NGK spark plugs with part number 22401-SK81B are used from the factory. It is recommended to use Denso (22401-JD01B) or Denso FXE20HR11 equipped with an iridium electrode as the main analogue provided by the factory instructions.

When buying an original candle for Nissan Qashqai power units, it is easy to run into a fake.

NGK offers an analogue of the factory product, but with a significant difference in cost - NGK5118 (PLZKAR6A-11).

You can also use the following options:

• Bosch products with a platinum electrode - 0242135524;
• Champion OE207 - electrode material - platinum;
• Denso Iridium Tough VFXEH20 - these electrodes use a combination of platinum and iridium;
• Beru Z325 with platinum electrode.

Tools for self-replacement of candles and features of the procedure

We disassemble the decorative molding, remove the pipe

You can change the spark plugs for Nissan Qashqai yourself, and you will need to dismantle a number of nodes. To do this, you will need to prepare the following tools and materials:

• ring and socket wrenches for 8, 10 with a ratchet and extension cord;
• flat screwdriver;
• candle wrench 14;
• wrench;
• new spark plugs;
• throttle gasket and intake manifold;
• clean cloth.

To facilitate replacement on a Nissan Qashqai power unit, it is better to use a spark plug wrench with a magnet. In their absence, ignition coils can be used to remove and install spark plugs. It is recommended to replace the elements one at a time. This will minimize the chance of foreign objects getting into the cylinders.

We unscrew the manifold mounting bolts, disconnect the bleed valve connector, unscrew the throttle valve

The use of a torque wrench is necessary to withstand the torque of the spark plugs, throttle body mountings and intake manifold. If the permissible forces are exceeded, the plastic or the cylinder head may be damaged.

A detailed description of changing the candles Nissan Qashqai do it yourself

In case the Qashqai sails replenish themselves, it is recommended to use a camera to record the action step by step. This will simplify the process of reassembling previously dismantled powertrain components.

The replacement of ignition elements in Nissan Qashqai power units with a volume of 1,6 and 2 liters is carried out according to an identical scheme, regardless of the generation of the car.

Hidden behind the throttle valve is the seventh manifold mounting bolt.

Replacement process

• Before starting work, it is necessary to allow the power unit to cool down;
• We disassemble the decorative plastic cover of the internal combustion engine, fixed with two bolts;
• Next, the air duct is removed, which is mounted between the air filter housing and the throttle assembly. To do this, the clamps holding the air filter and crankcase ventilation channels are loosened on both sides;
• At the next stage, the DZ is dismantled. To do this, four mounting bolts are unscrewed, one of them is located directly under the shock absorber. In the future, the entire assembly is removed to the side without disconnecting the power cables and cooling system;
• Remove the oil level dipstick from its socket, covering the hole with a rag. This will prevent debris from entering the internal combustion engine;

It is better to cover the holes in the head of the block with something, remove the coils, remove the candles, put in new ones, turn with a torque wrench

• The intake manifold is disassembled, which is fastened with seven screws. It is recommended to start by unscrewing the central bolt located at the front of the manifold, and then unscrew four more fasteners. The plastic back cover is attached with two bolts. One is located at the throttle valve installation site, and the second is on the left side and is attached through the bracket. After removing all fasteners, the intake manifold is carefully lifted and set aside without disconnecting the pipes;
• The installation site of the intake manifold is thoroughly cleaned of dirt and dust, the holes in the cylinder head are pre-closed with rags;
• Next, the power cables are disconnected and the ignition coil mounting bolts are unscrewed, which allows you to remove the devices;
• Candles are broken with the help of a candlestick. After that, all landing pits are wiped with rags, if there is a compressor, it is better to blow it with compressed air;
• In the future, alternately removed and installed new spark plugs. In this case, it is necessary to carefully insert them into the seat so as not to disturb the interelectrode gap. The tightening torque of new elements should be in the range from 19 to 20 N * m;
• In the future, the dismantled units are installed in the reverse order, using new gaskets. In this case, when tightening the mounting bolts, it is necessary to withstand the following forces: intake manifold - 27 N * m, throttle assembly - 10 N * m.

Qashqai J10 before upgrade from above, after from below

Throttle training

In theory, after replacing the spark plugs on a Nissan Qashqai without disconnecting the throttle power cables, throttle learning will not be required. But in practice, there may be several options.

The following are the actions that must be sequentially performed to conduct a remote sensing training in various modes, while you must have a stopwatch. First you need to warm up the transmission, the power unit, turn off all electrical appliances, put the gearbox in the “P” position and check the battery charge level (at least 12,9 V).

Qashqai before update on top, 2010 facelift on bottom

The sequence of actions when teaching remote sensing:

• After fulfilling the prerequisites, it is required to turn off the engine and wait ten seconds;
• Contact is made without starting the internal combustion engine and with the accelerator pedal released for three seconds;
• After that, a full cycle of pressing is carried out, followed by releasing the accelerator pedal. Within five seconds, five repetitions are required;
• In the future, there is a pause of seven seconds, then the accelerator pedal is pressed all the way and held. In this case, you must wait for the CHECK ENGINE signal to appear before it starts flashing;
• After the CHECK ENGINE signal is given, the accelerator pedal is held down for three seconds and released;
• Next, the power unit starts up. After twenty seconds, try to act on the accelerator pedal with a sharp increase in speed. With proper throttle training, the idle speed should be between 700 and 750 rpm.

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