2.0 CDTi DPF and EGR faults
- Typically appears
- 100,000+ miles
- What to inspect
- Warning lights and regen history
A 2016 Vauxhall Insignia is now 10 years old, so an average example has covered around 135,000 miles. An early car in the generation · most of the launch teething issues were still being worked through, so recall completion and dealer rectification history matter. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2016 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
The 2016 Vauxhall Insignia is 10 years old, so an average example has covered roughly 135,000 miles. At that mileage 7 of the documented faults are already due, so check those first.
Documented onset mileage is at or below the ~135k miles an average 2016 car has covered.
2.0 CDTi DPF and EGR faults
Timing chain wear and oil leaks on high-mileage engines
Front arms and rear bush wear
Whining noise and gear stick movement in 1st, 2nd, 5th or 6th gear.
Hissing noise under load, loss of power, and P0299 underboost fault codes.
Metallic clattering at idle and heavy vibration felt through the clutch pedal.
Cold air blowing from passenger side vents while the driver side blows hot.
Age, electronics and build-related issues that are not mileage-driven.
Infotainment, sensors and electric handbrake faults
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carLess than it looks if it is a motorway fleet car with full history.
Sports Tourer estates to trade and family buyers.
Electric handbrake and infotainment faults.
For the 2.0 CDTi engines, Vauxhall specifies a cambelt and water pump replacement every 100,000 miles or 6 years, whichever comes first. Dealers must check the service history for this, as failure causes catastrophic engine damage. If undocumented, budget for immediate replacement before retail sale to avoid liability.
The Aisin-Warner six-speed and later eight-speed torque converter automatics are generally robust, provided the fluid is changed every 40,000 to 60,000 miles. However, they are sensitive to neglected maintenance. During a test drive, watch for harsh engagements when shifting from Park to Drive, or flaring between second and third gears.
The AdBlue system on later Euro 6 diesels is a known weak point. Injectors frequently clog with crystallised urea, and NOx sensors are prone to failure. Ensure no emissions warnings are present on the dash. A failed AdBlue pump or tank heater often requires a complete, expensive tank replacement.