Vauxhall Insignia 2.0 CDTi VAUXHALL Insignia Mk1 (A) Hatchback (G09) (07.2008 - 05.2017)

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The 2015 Vauxhall Insignia 2.0 CDTi is a popular used car choice but has some known pros and cons along with specific issues you should be aware of before buying.

Pros
Comfortable and spacious interior with good build quality.

Efficient 2.0 CDTi diesel engine offering decent fuel economy and performance.

Well-equipped with modern features for its time.

Smooth ride quality and decent handling for a family car.

Cons and Common Issues to Watch For
Engine and Oil Leaks
The 2.0 CDTi engine can develop oil leaks, especially from the rubber seal around the oil pump and the area where the engine meets the gearbox.

Pay attention to any oil warning lights and check for oil spots under the car.

Injector leaks and sensor failures (causing malfunction/check engine lights) are also reported in diesel variants.

Gearbox and Transmission
Gearshift cables can corrode due to water ingress, causing difficulty in changing gears and sometimes unusual noises.

Some models suffer noisy transmissions and gearbox problems, including stiff gearsticks or scraping/grinding noises.

Manual gearbox issues can involve worn synchronizers or clutch plates; professional inspection is recommended.

Dual mass flywheel (DMF) failure is a common and expensive problem in diesel Insignias, causing vibrations, juddering, and clutch slipping.

Cooling and Exhaust
Coolant leaks are common, often from the EGR vacuum cooler housing, leading to overheating or steam under the bonnet.

Exhaust sensors can be fragile and cause the malfunction indicator light to flash.

Diesel particulate filter (DPF) problems can occur if the car is mainly used for short trips, leading to clogging and expensive cleaning or replacement.

Electronics and Other Faults
Central locking issues due to water ingress in door connectors can cause random unlocking or failure.

Rear parking sensors can fail from water damage.

ABS sensor faults causing warning lights are reported.

Some reports of faulty tyre pressure sensors and ignition key getting stuck.

Tailgate locks can allow water ingress and fail.

Brakes and Steering
Rear brakes can bind and cause squeaking noises on older, high-mileage cars.

Noisy or failing steering racks may require replacement.

The 2015 Vauxhall Insignia 2.0 CDTi offers good comfort and economy but is known for:

Oil leaks around engine seals,

Gearbox and gearshift cable corrosion issues,

Expensive dual mass flywheel failures,

Cooling system leaks,

Fragile exhaust sensors,

Electrical faults with locking and sensors.

If considering purchase, have a thorough pre-purchase inspection focusing on oil leaks, gearbox operation, clutch and DMF condition, cooling system, and electrical systems. Also, check the service history for timely maintenance and repairs of known issues.

This due diligence will help avoid costly repairs and ensure a more reliable ownership experience.