Nissan Qashqai under the hood: photos, diagram of components and technical secrets

Under the hood Nissan Qashqai hides a complex system of components, the operation of which determines the comfort and safety of your trip. But even experienced car owners do not always know where this or that element is located, how to properly maintain it, and what to look for during a visual inspection. This article will help you understand the structure of the crossover engine compartment and provide relevant photo with captions and will reveal technical nuances that are not written about in standard instructions.

We analyzed three generations Qashqai (J10, J11, J12), highlighted the key differences between their engine compartments and collected practical diagnostic tips. We will pay special attention common problems, which you can identify yourself - from oil leaks to electrical faults. If you're considering buying a used SUV or just want to better understand your vehicle, this information will be useful.

Photo of the engine compartment of the Nissan Qashqai: what is where

Let's start a visual acquaintance with the engine compartment with Qashqai J11 (2013–2021) - the most common generation on the Russian market. Below are photo with markings of key nodes, relevant for gasoline engines HR16DE (1.6 l) and MR20DD (2.0 l). Please note: the layout of diesel versions (K9K, R9M) has differences, which we will discuss separately.

• 🔧 Oil filler cap — marked with a yellow ring, located on the left (in the direction of travel). On diesel versions - black with the inscription OIL.
• 🔋 Battery - in the upper right corner (for J10 - under the plastic cover). The terminals are covered with protective caps.
• 💧 Coolant reservoir - translucent white tank with markings MIN/MAX. On Qashqai J12 moved closer to the center.
• ⚡ Fuse box — a black plastic box next to the battery. The fuse location diagram is indicated on the inside of the cover.

On Qashqai J12 (from 2021) the manufacturer has simplified access to some elements: for example, air filter is now located in a more ergonomic location, and brake expansion tank moved closer to the windshield. However on hybrid versions Qashqai e-Power the layout is radically different due to the presence of an inverter and a high-voltage battery.

Node layout: comparison of generations J10, J11 and J12

To avoid confusion between generations, we have compiled a comparison table. It will help you quickly find your way, even if you opened the hood for the first time. Nissan Qashqai. Please note changes in the location of the air filter and fuse box - These are common “painful” points when performing self-service.

Knot	Qashqai J10 (2006–2013)	Qashqai J11 (2013–2021)	Qashqai J12 (2021–present)
Oil filler neck	Left, black cover	Left, yellow cover	Left, yellow cover (blue on the hybrid)
Coolant reservoir	At the windshield, white	Right of center, white	Closer to the center, translucent
Air filter	Under the black cover on the right	Under the clips, on the right	Easily accessible, no tools required
Fuse box	Under the plastic panel on the right	Near the battery	Under the cover near the windshield

Interesting fact: on Qashqai J10 with engine MR20DE (2.0 l) the generator is located belowthan on newer models. This makes it difficult to replace, as it requires removing the crankcase protection. B J11 And J12 engineers Nissan We took this drawback into account by moving the generator higher.

⚠️ Attention: On diesel versions Qashqai (especially with engine R9M) it is strictly forbidden to confuse coolant tanks and AdBlue. The latter has a blue cap and is located next to the fuel filler neck. Fill AdBlue into the cooling system leads to irreversible engine damage and repair costs from 300,000 rubles.

Technical features of engines: what is hidden under plastic covers

Plastic trims under the hood Nissan Qashqai perform not only a decorative function, but also protect key components from dust and moisture. However, hidden underneath are elements that require regular monitoring. Let's look at what is under each cover using an example Qashqai J11 with engine HR16DE:

• 🛠️ Top cover (with Nissan logo) - located underneath ignition coils And valve cover. This is also where oil check sliver (yellow ring).
• 🔥 Right side cover - hides air filter and part of the intake manifold. On diesel versions this is also located diesel particulate filter (DPF).
• ⚙️ Left side cover - behind it is battery (on J10) or engine control unit (ECU) (on J11/J12).

On Qashqai e-Power You won't find a traditional internal combustion engine under the hood. Installed instead gasoline generator MR20DD, which works solely to charge the battery. The main drive is carried out by an electric motor located under the interior floor. This is a fundamentally different layout that requires a special approach to maintenance.

What is the e-Power system and how does it work?

In the e-Power hybrid system, the gasoline engine is not connected to the wheels - it acts as a generator that powers the electric motor. This avoids traditional transmission losses and reduces fuel consumption. However, such an engine operates at constant speeds (about 2000 rpm), which requires more frequent oil changes - every 10,000 km instead of the standard 15,000.

The system deserves special attention direct fuel injection on engines MR20DD And HR16DE. It provides high power and efficiency, but is sensitive to the quality of gasoline. Injectors here they are located directly in the cylinders, and their clogging leads to uneven engine operation and increased fuel consumption.

Common problems under the hood: how to identify problems by external signs

Many faults Nissan Qashqai can be diagnosed even before errors appear on the dashboard. It is enough to carefully inspect the engine compartment. Here key symptoms, which are worth paying attention to:

• 🛢️ Oil drips on the engine - most often appear from under valve cover (the gasket loses elasticity after 100,000 km) or crankshaft oil seal. On Qashqai J10 This is a common problem due to design features.
• 🔥 White deposits on spark plugs - sign antifreeze getting into the cylinders (cylinder head gasket is broken). Requires urgent diagnosis, otherwise there is a risk of engine overheating.
• ⚡ Battery terminal oxidation - on Qashqai J11 often associated with leaking battery cover (especially in cold weather). Leads to poor contact and starting problems.
• 💨 Dirty air filter — if a thick layer of dust is visible on it, this increases fuel consumption by 10–15%. On diesel versions, a clogged filter accelerates wear. turbines.

One of the most insidious problems is antifreeze leaking from under the thermostat. On Qashqai J11 with engine MR20DD The thermostat is located in an inconvenient place, and replacing it requires removing several pipes. Signs of malfunction: engine overheating at idle and a sweetish smell under the hood.

⚠️ Attention: If on Qashqai with engine HR16DE did you notice vibration at idle, check engine mounts (especially the right one). They wear out faster on this motor due to vibration imbalance. Ignoring the problem leads to cracks in the subframe.

How to maintain the engine compartment yourself: step-by-step instructions

Regular Maintenance Nissan Qashqai You can do it yourself, saving on service visits. Below - step by step instructions for the most popular procedures. Remember: before any work disconnect the battery (negative terminal first!) to avoid short circuit.

1. Replacing the air filter

On Qashqai J11/J12 the filter is located in a plastic box on the right (in the direction of travel). To replace:

1. Open the 4 plastic clips on the box lid (you will need a flathead screwdriver).
2. Remove the old filter, pay attention to the direction of the arrows (they should point down).
3. Install a new filter (we recommend Mann C 27003 or Framm CA 10166).
4. Close the lid, making sure the clips snap tightly into place.

2. Checking the oil level

Oil control Qashqai has nuances:

• The engine must be warmed up to operating temperature (but turned off for at least 5 minutes).
• The machine must be parked flat surface (the slope distorts the readings).
• The dipstick is removed completely, wiped with a clean cloth and lowered again until it stops.

Normal level is between the marks MIN And MAX. If the oil is dark or has metal particles, it is required unscheduled replacement.

3. Battery diagnostics

Battery on Qashqai J11/J12 located on the right under the plastic cover. To check:

1. Remove the cover, disconnect negative terminal (10 mm wrench).
2. Check the voltage with a multimeter: normal - 12.6–12.8 V with the engine off.
3. Clean the terminals with sandpaper if there is oxidation (use contact spray).
4. Check the electrolyte level (if the battery is serviceable) - it should cover the plates by 5–7 mm.

On Qashqai e-Power the battery has additional control unit, and its replacement requires “re-registration” in the system. It is better to entrust this procedure to the official service.

Modernization and tuning of the engine compartment: what can be improved

Under the hood Nissan Qashqai There is potential for improvements that will improve the reliability and dynamics of the car. Let's consider popular modificationsthat do not require major investments:

• 🔥 Installing a zero air filter (For example, K&N 33-2303) - increases air flow by 10–15%, but requires more frequent cleaning (every 5,000 km).
• ⚡ Replacing spark plugs with iridium ones (Denso IK20 or NGK 97186) - extends the replacement interval to 100,000 km and improves cold starting.
• 🛡️ Installing additional crankcase protection - relevant for Qashqai J10, where the standard protection is thin and often deforms on bumps.
• 💡 LED lighting of the engine compartment — facilitates inspection in the dark (can be connected to dimensions).

For owners Qashqai J11 with engine MR20DD would be an interesting upgrade replacing the standard thermostat with 82°C (instead of regular 88°C). This lowers the engine's operating temperature, reducing the risk of overheating in traffic jams. However, after this modification fuel consumption may increase by 3–5%.

⚠️ Attention: On diesel Qashqai with engine R9M It is strictly not recommended to remove the particulate filter (DPF) without flashing the ECU. This leads to emergency engine operation and increase fuel consumption up to 20%.

Frequently asked questions about the engine compartment of Nissan Qashqai

Why does Qashqai J11 often leak oil from under the valve cover?

The problem is related to gasket design — it is made of rubber, which hardens at high temperatures. After 80–100 thousand km it is recommended to replace it with silicone (For example, Elring 125.630). Also check crankcase ventilation — its clogging increases oil pressure, causing leaks.

Is it possible to wash the engine compartment of a Qashqai with a Karcher?

Yes, but with caution! It is forbidden to direct the jet to:

• Fuse box and ECU (electronic control unit).
• Generator and starter.
• Air filter (if you do not plan to dry it or replace it).

After washing it is necessary blow with compressed air contacts and connectors to avoid corrosion.

What antifreeze should I fill in the Qashqai J12?

Manufacturer recommends Nissan Coolant L255N (blue) or its analogues: CoolStream A-110, Sintec Unlimited. Cooling system volume:

• HR16DE: 6.5 l
• MR20DD: 7.2 l
• R9M (diesel): 8.0 l

Mix antifreeze of different colors it's impossible - this leads to the formation of sediment and clogging of the radiator.

What should you do if your Qashqai smells burnt under the hood?

The reasons may be different:

• Overheating of brake pads — check the calipers and discs.
• Electrical problems — inspect the wires near the exhaust manifold (they may melt from high temperature).
• Oil leak on exhaust manifold - leads to smoke and a characteristic odor.

If the smell is accompanied white smoke from under the hood, stop immediately and check the antifreeze level - the cylinder head gasket may be broken.

Is it necessary to warm up the Qashqai engine before driving?

Modern engines Nissan Qashqai (especially with a direct injection system) do not require long warm-up. Enough:

1. Start the engine and let it run 20–30 seconds (in winter - up to 1 minute).
2. Start moving on low revs (up to 2,000 rpm) the first 2–3 km.

Long warm-up (more than 2–3 minutes) harms the engine — leads to increased wear of the piston rings and increased fuel consumption.