Infiniti FX first generation

The Infiniti FX first generation (2003–2008): dimensions, weights, reliability and the official figures of its 5 versions in the United States and Canada.
Model codes: S50
Dimensions, weights and capacity
| Specification | Europe | Wikipedia |
|---|---|---|
| Dimensions | ||
| Length | 4,865 mm ASTRA | 4,803 mm |
| Width | 1,925 mm ASTRA | 1,925 mm |
| Height | 1,680 mm RDW | 1,651–1,674 mm |
| Wheelbase | 2,850–2,860 mm RDW | 2,850 mm |
| Front track | 1,635 mm ASTRA | – |
| Rear track | 1,640 mm ASTRA | – |
| Weights and towing | ||
| Kerb weight | 1,800–1,946 kg RDW | – |
| Mass in running order | 1,900–2,046 kg RDW | – |
| Gross vehicle weight | 2,427–2,486 kg RDW | – |
| Towing, braked trailer | 1,585–1,588 kg RDW | – |
| Towing, unbraked trailer | 450–750 kg RDW | – |
| Seats and space | ||
| Seats | 5 RDW | – |
| Doors | 4 RDW | – |
| Performance | ||
| Top speed | 233–250 km/h ASTRA | 222–233 km/h |
| Torque | 360–500 Nm ASTRA | 355–366 Nm |
Tyre sizes (most common first): 265/45R21, 265/50R20
Ranges cover the generation’s versions and body styles; European and North American versions can differ. Sources: ASTRA type approvals (Switzerland), Wikipedia (en, de), RDW type approvals (Netherlands). Wikipedia figures are used under CC BY-SA 4.0.
Reliability and owner reports
Owner complaints to NHTSA (US)
454 complaints for model years 2003–2008. 14 crashes · 3 fires · 32 injuries · 1 death
- Airbags 119
- Locks and latches 60
- Electrical system 59
- Body and structure 48
- Fuel system 28
Complaints are reported by owners and not checked by NHTSA; they are not adjusted for how many cars were sold, so popular models have more. NHTSA owner complaints
All 5 versions of the Infiniti FX first generation
United States 3 versions
Model years sold in the USA, from the EPA and the Department of Energy (fueleconomy.gov). MPG on the EPA test; litres per 100 km = 235.215 ÷ MPG.
| Years and version | Engine | Fuel | Gearbox | Drive | Consumption (combined) | CO₂ |
|---|---|---|---|---|---|---|
| 2003–2008CLKUP | 3.5 L | Petrol | 5-speed automatic | Four- or all-wheel drive | 17 MPG (13.8 L/100 km) EPA | 325 g/km |
| 2003–2008CLKUP | 3.5 L | Petrol | 5-speed automatic | Rear-wheel drive | 17–18 MPG (13.1–13.8 L/100 km) EPA | 307–325 g/km |
| 2003–2008CLKUP | 4.5 L | Petrol | 5-speed automatic | Four- or all-wheel drive | 14–15 MPG (15.7–16.8 L/100 km) EPA | 368–394 g/km |
Canada 2 versions
Model years sold in Canada, from Natural Resources Canada fuel consumption ratings (5-cycle test).
| Years and version | Engine | Fuel | Gearbox | Consumption (combined) | CO₂ |
|---|---|---|---|---|---|
| 2003–2008Sport utility vehicle | 3.5 L | Petrol | 5-speed automatic | 14.1 L/100 km 5-cycle | 324 g/km |
| 2003–2008Sport utility vehicle | 4.5 L | Petrol | 5-speed automatic | 15.5–16.2 L/100 km 5-cycle | 357–373 g/km |
Similar models from other brands
Official figures are measured on standard test procedures and differ between markets. Your consumption depends on how, where and in what conditions you drive.





