Which Navara is yours?
D22: the older ute, sold alongside the bigger D40 until 2015. From 2001 the series 2 brought the ZD30 diesel.
D40: a 2.5-litre turbo-diesel or a V6 petrol here, with a five-speed automatic or a six-speed manual on the diesel.
D23 (NP300): the replacement from 2015, facelifted here in the first quarter of 2021.
D27: the new one, unveiled on 19 November 2025 and based on the sixth-generation Mitsubishi Triton, with a 2.4-litre twin-turbo diesel and a 6-speed automatic. If yours is a D23 or D27, the handbook will say what drives the camshafts.
Why a chain still needs attention
A timing chain does the same job as a timing belt (it keeps the engine's valves in step with the pistons), but it's metal and runs in the engine oil. It isn't on a replacement schedule, which is why people forget it can wear.
CarsGuide calls the 2.5-litre four-cylinder diesel in the Pathfinder of the same era notorious for stretched and failed chains. That engine family also went in the Navara, so a rattle isn't one to leave for later. Clean oil, changed on time, is the simplest protection a chain gets.
Navara signs worth a mechanic's ear
- Ticking or rattling from the top of the engine, especially on a cold start. It can be a chain tensioner or a worn hydraulic lifter.
- Oil around the intercooler hose, which can come from a worn turbocharger.
- A clutch that slips or a turbo-diesel that's lost its go.
- Loss of power or limp mode: see why a car goes into limp mode.
Working utes wear differently
CarsGuide's answer on a 2015-era Navara ST didn't soften it: clutch failures and rattling, worn out turbo-diesels at 160,000 km are a reality. A ute that's towed, loaded and idled for years tends to get there sooner than a family one. The same answer notes the radiator sits low, where a rock or a washout can reach it off-road.
Diesel particulate filters vary too. Nissan fitted them to some automatics and not to some manuals, so ask the mechanic which yours has before chasing a DPF warning light.
How often is a Navara due?
CarsGuide's 2025 servicing schedule lists the Navara at 12 months or 20,000 km. A ute doing hard work will often need the oil looked at more often than a highway car, so talk through how you use it.
A new Navara has Nissan's 5-year unlimited kilometre warranty. Servicing by a qualified independent mechanic, to Nissan's schedule and specifications, doesn't by itself void it. The years beyond that, up to 10 Years/300,000 kilometres, need Nissan dealer servicing. Tell us it's a Navara, the year and what it's doing. A local mechanic who specialises in your car.
If it were our Navara
A rattle on a cold start gets a proper listen this month, not at the next service. We'd ask the mechanic to separate chain noise from lifter noise before quoting anything, and to check for oil in the intercooler pipes while they're there. And if the ute's doing real work, we'd shorten the gap between oil changes and keep every invoice.