Reliability Guide

Common Problems with the
2016 Infiniti QX70 (FX)

We've identified 2 known issues that can affect the 2016 Infiniti QX70 (FX). None are considered critical, but they're worth knowing about before you buy.

2
Known Issues
0
Serious
2
Moderate
0
Minor

All Known Issues

V9X Diesel EGR and DPF Clogging

ModerateEngine

The 3.0L diesel engine is prone to carbon buildup in the EGR valve and DPF, especially if used for short urban trips.

Est. Repair Cost: £300–£1,200
Warning Signs:

Limp mode, Engine warning light, Poor fuel economy, Hesitation

What to Inspect:
  • Check for DPF regeneration history
  • Take the car for a long motorway run to ensure no lights appear
Verified by IsItAGoodCar Research Team

Brake Disc Warping

ModerateBrakes

The FX/QX70 is a heavy car, and spirited driving can lead to warped front brake discs, causing vibration under braking.

Est. Repair Cost: £300–£500
Warning Signs:

Steering wheel judder when braking, Pulsing brake pedal

What to Inspect:
  • Apply the brakes firmly from 60mph (where safe) and feel for vibrations
Verified by IsItAGoodCar Research Team

Buying Tips for 2016 Infiniti QX70 (FX)

  • Check the massive 21-inch alloy wheels for curbing; replacement tyres of this size are very expensive.
  • Listen for a whining noise from the rear differential or transfer case, indicating impending bearing failure.
  • On the 3.0d V6 diesel, verify the service history meticulously; oil dilution and DPF issues can occur if not driven on long runs.
  • Test the heavily contoured sports seats for full electrical adjustment, as the seat motors can occasionally fail.
  • Inspect the dashboard for any signs of the material bubbling or cracking under the windscreen in direct sunlight.
  • Check the brakes for judder; the heavy vehicle is very hard on brake discs, requiring frequent replacements.