Parts for your 2022 Nissan X-trail-Knock sensor

2022 Nissan X-TRAIL Knock Sensor

Per Nissan’s technical literature, the 2022 X-TRAIL (T32) petrol engines are equipped with a knock sensor. The Nissan Factory Service Manual for T32 (EC – Engine Control System, QR25DE/MR20DD) details knock-sensor monitoring and diagnostics, including DTCs such as P0325. Nissan’s electronic parts catalogue (FAST) also lists the knock sensor for the 2.5‑litre petrol engine used in AU/NZ-market 2022 models. So yes—this model uses a knock sensor.

The knock sensor on the 2022 Nissan X‑TRAIL listens for the high‑frequency pinging caused by detonation, then signals the engine control module to trim ignition timing before anything gets hurt. It’s a small piezoelectric microphone bolted to the engine block, but it plays a big role in protecting the 2.5‑litre petrol from knock, keeping performance crisp on 91–98 RON fuel and helping fuel economy on long Kiwi and Aussie road trips.

There’s no routine servicing for the knock sensor—if it’s happy, it’s hands‑off. When it isn’t, the dash light usually joins the party with a code like P0325, and drivers may notice lazier performance, poorer economy, or light rattling under load. Because the ECM pulls timing to stay safe, the vehicle often remains drivable, but it will feel a bit doughy. Best to sort it before a real knock event gets out of hand.

Replacement on the QR25DE typically involves access from the intake side of the block. A good workshop will:

• Confirm the fault with scan data and a wiring check (the connector or loom can be the culprit).
• Use an OE‑quality sensor and new sealing washer if specified.
• Mount it clean and dry, on bare metal, with the harness routed as per the manual to avoid false noise.
• Tighten to the factory torque spec from the service manual (around 20 N·m is typical for QR‑series engines).
• Clear codes, perform a road test, and verify knock‑learn and ignition advance are behaving.

Tips for owners: keep an eye on the MIL, run decent fuel from reputable bowsers, and don’t ignore audible pinging. If the X‑TRAIL starts using more juice, feels flat up hills, or shows a knock‑sensor code, a quick diagnostic check can save time and money. With the right part and proper fitment, the sensor’s a set‑and‑forget item that keeps the engine safe and smooth for many kilometres.

Popular questions about the 2022 Nissan X-TRAIL knock sensor

Where is the knock sensor on a 2022 X‑TRAIL?
It’s mounted on the engine block beneath the intake side, roughly mid‑way along the cylinder bank. Access commonly involves working under or around the intake manifold area, so it’s not usually a simple top‑of‑engine swap like a coil.

Is it safe to drive with a faulty knock sensor?
The ECM will usually pull timing to protect the engine, so the car often runs but feels sluggish and uses more fuel. If genuine knock occurs and the sensor can’t report it properly, there’s a risk of internal damage. It’s wise to diagnose and repair sooner rather than later.

Do all 2022 X‑TRAIL engines use the same knock sensor?
Petrol variants use a dedicated sensor and harness spec for the QR25DE. Part numbers can vary by build date and market, so checking with the VIN is the safest bet. If a diesel variant is in question, its sensor setup and part numbers differ.