Model Reports 8 min read Updated 11 Sep 2026 DVSA open data · 8,817 tests analysed

Dacia Sandero 2020: reliability & common MOT faults

1,878 first-attempt MOT failures were recorded on the 2020 Dacia Sandero in 2025. The items recorded most often on them were Visibility — Wipers (front) and Brake pads (front). Figures are among first-attempt failed MOT tests, not among all tests.

2020 Sanderos break the Sandero's own run — at 78.7% they land 1.9 pp below the midpoint of the 2019 and 2021 cars either side.

First-attempt pass

78.7%

of 8,817 first tests (2025)

First tests

8,817

test year 2025

Failed first attempts

1,878

failed first-attempt tests

Most common fail

12.9%

Visibility — Wipers (front)

MOT pass rates

First-attempt and official-style rates among class 4 first tests of the year.

First-attempt pass

78.7%

of 8,817 first tests (2025)

Official-style pass

86.0%

incl. same-day PRS fixes

First tests

8,817

class 4 · first MOT of the year

Typical age 5.0 yrs · median mileage 28,672 mi

vs 2024: -0.6 pp first-attempt

Note:

  • Class 4 cars · first MOT of the year per vehicle · P/PRS/F outcomes (2025 data).
  • PRS (fixed at the station the same day) counts as a fail in the first-attempt rate.
  • Raw outcomes for this cohort — not adjusted for age, mileage, or peer mix.
  • MOT doesn't test engine or gearbox internals.

Common faults

Failure patterns that show up more often on this registration year than on similar cars.

These MOT failure patterns show up more often on this registration year than on similar cars of the same class, age, and mileage.

Shares below are measured across the 1,878 failed first attempts in 2025 that the age-and-mileage comparison can be computed on.

Standout: Anti-roll bars — Linkage (front) — 3.7% of this year's failed first attempts

Recorded on 70 of those tests. It tops the table on elevation — about 38× more often than on similar cars of the same age and mileage. That is what makes it unusual for its class, which is a different question from what is most likely to fail; the buying checklist ranks by that. The full ranked list is in the table below.

No patterns met the strongest callout thresholds on this page; showing the highest-lift rows that still cleared the display floors.

Fault pattern Location Failures vs similar cars Share of fails Confidence
Anti-roll bars — Linkage (front)
Suspension > Anti-roll bars > Linkage
 Front 70 ×38 3.7% Likely
Headlamp (front)
Lamps, reflectors and electrical equipment > Headlamps > Headlamp
 Front 114 ×4.3 6.1% Likely
Stop lamp
Lamps, reflectors and electrical equipment > Stop lamp
 Any 51 ×3.2 2.7% Likely

Only patterns that clear minimum sample and elevation thresholds are shown (at least 20 failures and about 2.0× more often than similar cars).

Note: Rates and comparisons are among first-attempt failed tests, not all MOTs. Patterns come from MOT defect codes — not manufacturer service bulletins, recalls, or a diagnosis of any individual car. Failures and advisories are listed separately.

Wear patterns

Usage and mileage effects that often track road use rather than model design.

These patterns look like wear or usage effects rather than model-specific design faults. Tyres, brake friction material, and alignment-related defects often track mileage and road use.

Pattern Location Failures vs similar cars Share of fails Confidence
Brake discs (front)
Brakes > Mechanical brake components > Brake discs and drums > Brake discs
 Front 81 ×3.1 4.3% Wear
Headlamp aim (front)
Lamps, reflectors and electrical equipment > Headlamp aim > Headlamp aim
 Front 167 ×2.1 8.9% Wear
Brake pads (front)
Brakes > Mechanical brake components > Brake linings and pads > Brake pads
 Front 208 ×2.0 11.1% Wear
Note: These patterns are not treated as a model design fault in our common-faults ranking.

If you are buying one

What this year's MOT record means for the decision in front of you.

This year underperforms the Sandero's own age curve. If the years listed below are in budget, they are the stronger buy on this evidence.

Other Sandero years worth knowing about

Newer cars always pass more often, so a plain "best year" list would just rank by age. These are the years that beat or miss the trend their own neighbouring years set — the only age-adjusted signal this data supports.

Year vs the years either side First-attempt pass (rises with newer cars) First tests
2021 Sandero +2.0 pp better 85.8% 7,869

What to check on a 2020 Sandero

The items that failed 2020 Sanderos most often, as a share of the year's failed first attempts. This is what goes wrong, not what is unusual — the table further up the page covers that.

  • Visibility — Wipers (front) — recorded on 12.9% of failed first attempts
  • Brake pads (front) — recorded on 11.1% of failed first attempts
  • Headlamp aim — recorded on 10.5% of failed first attempts
  • Visibility — Washers — recorded on 8.9% of failed first attempts
  • Tread depth (front) — recorded on 7.4% of failed first attempts

Every figure here is a first-attempt MOT rate from DVSA open data for this model line. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.

FAQs

Short answers about how to read this model-year guide.

2020 Sanderos break the Sandero's own run — at 78.7% they land 1.9 pp below the midpoint of the 2019 and 2021 cars either side. In 2025, 78.7% of 8,817 first MOTs on the 2020 Dacia Sandero passed first time (PRS — items fixed at the station the same day — counted as a fail). The official-style rate including PRS is 86.0%. Among 1,878 failed first-attempt MOT tests (test year 2025), Anti-roll bars — Linkage (front) a…
Ranked by how often they were actually recorded, the items that failed 2020 Dacia Sanderos most often at the first attempt were Visibility — Wipers (front) (12.9%), Brake pads (front) (11.1%) and Headlamp aim (10.5%) — each as a share of the year's failed first attempts. That is what goes wrong on the car. It is a different question from which patterns are unusual for the class, which the common-faults table answers.
Among failed first-attempt tests we highlight patterns that appear more often than on similar cars. Top example: Anti-roll bars — Linkage (front) (3.7% of those tests; 70 observed failures; about 38× more often than similar cars). These are statistical signals, not a diagnosis of any individual car.
Anti-roll bars — Linkage (front) shows up more often than on similar cars (3.7% of those tests; 70 observed failures; about 38× more often than similar cars). That does not prove a design fault — age, mileage, and how the car was used still matter. Treat it as a pre-purchase check point, not a manufacturer service bulletin.
Common MOT problem areas for the 2020 Dacia Sandero include Anti-roll bars — Linkage (front), Headlamp (front), Stop lamp. These patterns show up more often than on similar cars after we filter out sparse noise — not a full list of every possible fault on an individual car.
This page highlights MOT failure patterns for the 2020 Dacia Sandero (registration year) using UK DVSA open data for the selected test year. Patterns are compared with cars of a similar age and mileage. It is a buyer checklist from MOT defect statistics — not a full service history or manufacturer service-bulletin list.
No. MOT tests do not cover engine internals, gearboxes, or many electronic modules. Patterns here come from MOT defect statistics only and should not be read as engine or gearbox reliability scores.

About this data

How this page is built and what it can (and can't) say.

These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars — not a full reliability score, and not a pass/fail verdict on any individual vehicle.

2024 2025

What we include

UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.

Same-day repairs

PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.

How we compare

We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.

What this does not cover

  • MOTs do not cover engine internals, gearboxes, or many electronics — this is not a full reliability score.
  • Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
  • Age and mileage matching reduces — but does not remove — differences in how cars were used and maintained.
  • We never invent pass rates, star scores, or ranks when those data marts are missing.

Contains public sector information licensed under the Open Government Licence v3.0.

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