Nissan Navara D40

The Navara D40 (2005–2010) is a classic body-on-frame pickup with a live rear axle and leaf springs — a working tool rather than a lifestyle accessory, even if the double cab makes it usable day to day. The 2.5-litre YD25DDTi diesel with 174 hp pulls willingly, carries close to a tonne of payload and, with selectable four-wheel drive and low range, gets you where the tarmac ends. Anyone after an honest workhorse that can tow well over three tonnes while still serving as everyday transport is in the right place — in principle. Despite the leaf springs the ride is decent by pickup standards, the cabin is solidly built and the controls are refreshingly simple.

In principle, because the D40 has one flaw that cannot be glossed over: the rear ladder frame rusts through from the inside. This is not cosmetic, it is a safety issue. In damp climates and especially where roads are salted in winter, dirt collects inside the frame box sections, and eventually the chassis cracks around the rear suspension mounts. There have been cases where the load bed separated from the frame entirely. Nissan addressed this with remedial work in some markets, but you should not rely on that — on every candidate the rear frame must be tapped and inspected thoroughly from underneath.

The YD25 engine has its own weak spots. The timing chain can stretch and rattles on cold start — the chain and tensioner are not lifetime components. More expensive still is the EGR cooler: if it cracks, coolant enters the intake or combustion chamber, which in the worst case destroys the engine. Coolant disappearing with no visible leak is the warning sign here. Add to that carboned-up intake manifolds, the occasional injector problem and, with age, a tendency towards leaking turbochargers. None of this is exotic, but together the engine demands disciplined maintenance.

Buying advice: Get under the car before the test drive. Check the rear frame, spring hangers and crossmembers for rot — if necessary, probe suspicious spots with a screwdriver. Verify the coolant level and the service history regarding EGR and timing chain. Listen carefully for chain rattle on a cold start. A complete service book with regular oil changes is worth real money, because the YD25 punishes neglected maintenance. On ex-commercial trucks, look closely at the load-bed edges and rear end.

Verdict: A tough, strong-pulling pickup with genuine working character — but the frame-rot issue makes the D40 a lottery. A well-kept, dry example with a healthy chassis is a useful tool; a rotted frame is an economic write-off. Here it is not the mileage that decides, but the condition of the underbody.