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Vauxhall Astra vs Vauxhall Insig excnav cdti eflex: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Vauxhall Astra
72%
MOT pass rate · 2,126,137 vehicles
Vauxhall Insig excnav cdti eflex
77%
MOT pass rate · 247 vehicles
More reliable
Verdict: On MOT pass rate, the Vauxhall Insig excnav cdti eflex is the more reliable of the two — 77% pass first time versus 72%. It's one signal among several; check the full breakdown below.

Head to head

Measure Vauxhall Astra Vauxhall Insig excnav cdti eflex
MOT pass rate 72% 77% ✓
MOT failure rate 28% 23% ✓
Faults & advisories per test 2.1 1.6 ✓
Dangerous-fault share 2% ✓ 3%
Average mileage 111,290 mi 147,778 mi
Sample size (vehicles) 2,126,137 247

Most common faults

Vauxhall Astra

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Oil leak, but not excessive (8.4.1 (a) (i))
  4. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Oil leak

Vauxhall Insig excnav cdti eflex

  1. Oil leak, but not excessive (8.4.1 (a) (i))
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Under-trays fitted obscuring some underside components
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate, the Vauxhall Insig excnav cdti eflex is the more reliable of the two — 77% pass first time versus 72%. It's one signal among several; check the full breakdown below.

Full Vauxhall Astra report Full Vauxhall Insig excnav cdti eflex report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.