Nissan Primera
1.8L naturally aspirated from the QG range. Good compromise between performance and consumption.
116 hp NA — squarely average
Mid-size in the truest sense — neither good nor bad, neither boring nor fun.
Engine Weaknesses 3
Like all QG engines, the QG18DE tends to chain stretch at higher mileages. A Nissan service recommendation for preventive replacement exists. Repair costs under €1,000.
Symptoms: Engine warning light (camshaft sensor), rough running, poor cold start behaviour
The QG18DE is regarded as particularly prone to elevated oil consumption. Affected owners report 0.6–1.2 litres per 1,000 km from worn piston rings and valve stem seals from around 100,000 km.
Symptoms: Blue smoke on cold start, rapidly dropping oil level, oily exhaust smell, possibly oil in intake system
The QG18DE uses shims instead of hydraulic tappets. Valve clearance must be set manually by swapping shims when required. This step is often skipped during routine services.
Symptoms: Ticking noise from valve train, particularly on cold engine; minor power loss