Vauxhall Astra Sri Nav Turbo CVT (2020)

162 real MOT outcomes analysed • 82.8% first-time pass rate

2020 Vauxhall Astra Sri Nav Turbo CVT

CarHunch analysed 162 real MOT records for the 2020 Vauxhall Astra Sri Nav Turbo CVT. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

This 2020 Vauxhall Astra is performing slightly better than the UK average, with an 82.8% first-time pass rate compared to 80%, and only 4.9% of vehicles having ever suffered a dangerous defect—well below the concern threshold. The petrol engine variant passes at 82.7%, suggesting the CVT transmission is holding up reasonably well for its age.

At just under 40,000 miles on average, these Astras are running low mileage for a four-year-old car, which explains the modest failure rate of 0.46 per vehicle and 1.2 advisories. When you're shopping, expect minor advisory issues like worn brakes or suspension components, but budget for a pre-purchase inspection focused on the CVT fluid condition and any transmission noise, since automatic gearboxes are the costliest failure point on this model.

Average reliability 2.8% above UK average
82.8%
pass MOT first time
UK average: ~80%
36,839
typical mileage
24,890–51,209 middle half
4.9%
ever had a dangerous defect
recorded at any MOT
0.46
avg MOT failures per car
over 3.3 tests on record

What to check before buying a 2020 Vauxhall Astra Sri Nav Turbo CVT

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Vauxhall Astra Sri Nav Turbo CVT

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (99%) 161 82.7% 0.47
Fuel Cells (1%) 1 100% 0

Mileage Distribution

Most 2020 Vauxhall Astra Sri Nav Turbo CVT vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

24,890
low mileage
36,839
typical
51,209
high mileage

Half of all 2020 Vauxhall Astra Sri Nav Turbo CVT vehicles fall between 24,890 and 51,209 miles.

2020 Vauxhall Astra Sri Nav Turbo CVT — Still on the Road

Strong survival — 135 vehicles still getting MOTs in 2025, 96% of the peak.

140 135 2023 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

3.3
Avg MOT tests per vehicle
0.46
Avg failures per vehicle
1.2
Avg advisories per vehicle

Found a specific Vauxhall Astra Sri Nav Turbo CVT?

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UK