Fault File
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Vauxhall Insignia

All generations and engines together · 177,292 MOT tests in the 2025 data · typical mileage at age 7: 79k

First-time failure at age 7
23.1%
Across 15,101 tests. The average across all tracked models is 19.5%.
Rank at age 7
182 of 239
1 = lowest failure rate among the models tracked.
Typical mileage at age 7
79k miles
Check the mileage view below; low-mileage models can look better by age than they are.

Generation

Split by first-registration year. Cars registered in a changeover year can belong to either generation.

How this model wears

Vauxhall InsigniaClass average, all tracked models

Known issues

Measured

Computed from DVSA MOT results, all of Great Britain, 2025. Nothing here is opinion.

What testers flag

Share of tests where each item was recorded. The dark tick is the class average across all tracked models; bars are scaled within each group.

Faults with the car itself

The rows that judge the model rather than its keeper. 67,426 tests in this band.

A suspension pin, bush or joint excessively worn
Advisory
9.1%class 5.9%
A spring or spring component fractured or seriously weakened
Fail
6.5%class 1.4%
Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users
Advisory
5.4%class 2.0%
A suspension component excessively damaged or corroded
Advisory
2.7%class 0.6%
A shock absorber damaged to the extent that it does not function or showing signs of severe leakage
Advisory
2.5%class 2.3%
A spring or spring component fractured or seriously weakened
Advisory
2.4%class 1.3%
A suspension pin, bush or joint excessively worn
Fail
2.3%class 0.9%
Engine MIL illuminated indicating a malfunction
Fail
2.0%class 0.4%
A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED
Fail
1.8%class 0.8%
Exhaust system leaking or insecure
Advisory
1.6%class 0.6%

Wear, upkeep and luck

Tyres, pads and stone chips say more about how the car was driven and maintained than about how it was built.

Tyre tread depth not in accordance with the requirements
Advisory
32.8%class 22.9%
A brake lining or pad worn below 1.5mm
Advisory
13.5%class 8.7%
A tyre seriously damaged
Advisory
12.0%class 12.7%
Brake disc or drum excessively weakened, insecure or fractured
Advisory
8.9%class 10.1%
Tyre tread depth not in accordance with the requirements
Fail
4.5%class 2.2%
Brake disc or drum significantly and obviously worn
Advisory
4.5%class 3.4%
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
Minor
4.3%class 1.2%
A brake lining or pad worn below 1.5mm
Fail
4.2%class 1.6%

Unconfirmed issues

Reported

Owner folklore from forums and the motoring press. Most of it never shows up in an MOT, which is why this section exists at all.

Dual-mass flywheel and clutch judder (diesel manuals)

Diesel manual only

On manual diesels, mainly the Mk1 2.0 CDTi, the dual-mass flywheel wears and gives a juddering feeling or hesitant power delivery when you pull away or accelerate hard. It tends to show up from around 70-100k miles and a flywheel-and-clutch job runs roughly £1,000-1,300 since the two are usually replaced together. No recall exists, it is treated as a wear item, so budget for it on any high-mileage manual diesel.

Reported 70-100k miles · sources: ClickMechanic, BreakerLink, Honest John carbycar

DPF clogging and limp mode on short runs

Emerging

The 2.0 CDTi (Mk1) and 1.6 CDTi "Whisper diesel" (Mk2) both filter up if the car is mainly used for short, stop-start journeys that never get the diesel particulate filter hot enough to regenerate. Owners notice a DPF warning light, sluggish power or limp mode, usually from 40k miles onward on town-only cars. A forced regeneration or clean is around £150-£250; a full replacement is £700-£1,200 if it has been ignored too long.

Reported from 40k miles on short-journey cars · sources: WhoCanFixMyCar, Honest John carbycar

Front-end knocks, steering rack noise and broken springs

Partly in the MOT data

A long-running complaint across both generations: a knocking or whining noise from the front end, often traced to a worn steering rack, plus reports of snapped rear coil springs and general suspension clunks as the car ages. Vauxhall issued improved steering rack part numbers to fix the noise for good rather than just replacing like-for-like, and there was a separate recall covering a small batch of track rod ends. The measured MOT data for this model does flag suspension as the standout fault category, which lines up with what owners describe, though the data can't tell you whether it is the rack, the springs or the bushes on any one car.

Reported from 60k miles · sources: Haynes, Honest John forum, WhoCanFixMyCar

AF40 automatic gearbox: jerky and delayed shifts

Automatics only

Cars fitted with the 6-speed Aisin AF40 automatic can develop jerky changes once warm, a pause before Drive or Reverse engages, or occasional slipping. It is usually put down to old transmission fluid, a tired valve body or a failing solenoid rather than a single design fault, and a fluid-and-filter service or valve body repair is the first cheap thing to try before quoting for a full rebuild. Manual cars are unaffected.

Reported on higher-mileage automatics · sources: WhoCanFixMyCar

Central locking and door lock failures (Mk2)

Emerging

On the 2017-2022 Mk2, owners report doors that won't lock or unlock on command, or locking that works intermittently. The usual cause is water getting into the door connector unit or the wiring loom breaking where it flexes in the door hinge area, not a single faulty part. A repair is typically a few hundred pounds for the affected door's lock and loom; there is no recall or acknowledged fix, so treat it as a running risk on used Mk2 cars rather than a one-off.

Reported on 2017-2022 cars · sources: WhoCanFixMyCar, ClickMechanic

1.6 CDTi "Whisper diesel" timing chain rattle (Mk2)

Disputed

Some Mk2 1.6 CDTi cars are reported to develop a rattle on cold start, blamed on a timing chain tensioner design that lets oil drain back overnight. It is not as widely documented as the equivalent problem on some rival diesels, and reports are thinner than for the other faults here, so treat it as something to listen for rather than a certainty. Where it is genuine, a full timing chain job is a four-figure repair, so a cold start check at a viewing is cheap insurance either way.

Single-source reports, unverified against a second outlet · sources: WhoCanFixMyCar

Viewing one? Ask this

Built from the two sections above.

Start the engine stone cold, before the seller has warmed it up, and listen for a rattle for the first few seconds. A rattle that clears within a couple of seconds points at the 1.6 CDTi timing chain tensioner wear.
Turn the steering lock-to-lock at a standstill and again while creeping forward. Any knocking, whining or notchiness is the steering rack wear that Vauxhall later addressed with revised parts.
On a diesel manual, pull away gently from a stop and again with more throttle. A judder or a flat spot before power comes in is the classic dual-mass flywheel symptom.
On an automatic, drive it until fully warm and try several stop-start changes, including a pause in Drive and Reverse. Jerky or delayed engagement once warm suggests the AF40 gearbox needs fluid, a valve body or worse.
Check the dash for a DPF or emissions warning light, and ask whether the car has done mostly short journeys. A town-only history plus a lit warning light means a clogged filter, and a bill, are likely close behind.
Test every door lock individually from the key fob and the door handle, not just the driver's door. A door that lags or won't lock points at water ingress in that door's connector, a Mk2 weak spot.
Get underneath, or ask for a look, at the rear coil springs and suspension links for cracks, rust or an uneven ride height. A broken spring or corroded link is the physical version of the suspension fault the MOT data flags for this model.

Others in its class

Same segment (Saloons & estates), best MOT record first. Compare before you shortlist.

How it compares

Head to head with the other popular cars in its class on reliability and common faults.