Fiat 500 L: MOT pass rate and reliability data

The Fiat 500 L fails its first MOT more often than the average UK car, by 10.2 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 4,111 individual Fiat 500 L tests. Nothing here is an estimate or a survey.

The numbers

First-time pass rate66.5%
UK national average76.7%
Difference-10.2 points
Tests analysed4,111
Average mileage at test75,451 miles
Average year of manufacture2013
Reliability rank1,838 of 2,005 models

What this means if you are buying one

A 66.5% first-time pass rate means roughly 34 in every 100 Fiat 500 Ls presented for MOT fail on the first attempt. That is worse than average, so budget for remedial work and treat a fresh 12-month MOT as a genuine selling point rather than a given. The average Fiat 500 L tested had covered 75,451 miles and was built around 2013.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. The Fiat 500 L sits 10.2 points below the national average, ranked 1,838 of 2,005 models. On one bought as repairable salvage, assume the mechanical side needs more than the visible accident damage, and pad your repair estimate accordingly.

Before you bid: run the lot through the analyzer, check the car's own record, check the mileage, decode the VIN, and if it carries a marker use the write-off value calculator. Or compare it against another model.

Looking at a specific Fiat 500 L rather than the model in general? The free check covers its MOT and mileage history, and the full HPI report confirms the insurance write-off category, outstanding finance and whether it is recorded stolen, from licensed data for 5 credits. Already own one that has been damaged? Work out whether fixing it beats selling it with the repair or scrap calculator, and see recorded closing bids for damaged Fiat 500 Ls at UK salvage auction.

Most common MOT failures on a Fiat 500 L

  1. Lambda coefficient outside the default limits or the range specified by the manufacturer, 1.7% of tests (3.23x the national rate for this defect)
  2. Parking brake efficiency below minimum requirement, 4% of tests (3.06x the national rate for this defect)
  3. A spring or spring component fractured or seriously weakened, 6.5% of tests (2.84x the national rate for this defect)
  4. Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc, 2% of tests (2.64x the national rate for this defect)
  5. Brake disc or drum significantly and obviously worn, 1.9% of tests (2.38x the national rate for this defect)
  6. Exhaust system leaking or insecure, 2% of tests (2.01x the national rate for this defect)
  7. A suspension pin, bush or joint excessively worn, 9.8% of tests (1.95x the national rate for this defect)
  8. a brake lining or pad worn below 1.5mm, 3.4% of tests (1.6x the national rate for this defect)
  9. A steering ball joint with excessive wear or free play, 2.1% of tests (1.6x the national rate for this defect)
  10. Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 2.2% of tests (1.59x the national rate for this defect)

From 4,121 DVSA-tracked Fiat 500 L tests, 2024. DVSA testers marked 6.25% of these flagged Fiat 500 L defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 5.11% nationally.

Most common MOT advisories on a Fiat 500 L

An advisory doesn't fail the car - the tester flags it as worth watching, but it still passes. A different list from the failures above: what testers are noting on a Fiat 500 L before it actually fails on it.

  1. Exhaust system leaking or insecure, 5.5% of tests (1.94x the national rate for this advisory), also fails
  2. Brake disc or drum significantly and obviously worn, 5.3% of tests (1.67x the national rate for this advisory), also fails
  3. Brake disc or drum excessively weakened, insecure or fractured, 19.8% of tests (1.61x the national rate for this advisory)
  4. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 7% of tests (1.26x the national rate for this advisory)
  5. A steering ball joint with excessive wear or free play, 1.6% of tests (1.22x the national rate for this advisory), also fails
  6. A tyre seriously damaged, 18.2% of tests (1.18x the national rate for this advisory)
  7. Tyre tread depth not in accordance with the requirements, 30% of tests
  8. A suspension pin, bush or joint excessively worn, 14.9% of tests, also fails
  9. a brake lining or pad worn below 1.5mm, 9.8% of tests, also fails
  10. A spring or spring component fractured or seriously weakened, 4.8% of tests, also fails

From 4,121 DVSA-tracked Fiat 500 L tests, 2024.

Fiat 500 L pass rate by model year

From its 2011 to its 2014 model year, the Fiat 500 L's first-time pass rate has fallen 0.3 points, from 68% to 67.7%, an unusual pattern where even its newest years fail more than its oldest. First-time pass rate for each Fiat 500 L year:

Fiat 500 L by fuel type

The Fiat 500 L's two most-tested fuel types split by 1.8 points: diesel passes first time 66.1% of the time (2,624 tests) against 67.9% for petrol (1,471 tests).

Other Fiat models

Models with a similar pass rate

If this car is a salvage or write-off

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Fiat 500 L MOT pass rate badge: 66.5%

<a href="https://www.salvageprophet.co.uk/mot/fiat-500-l"><img src="https://www.salvageprophet.co.uk/badge/fiat-500-l.svg" width="340" height="92" alt="Fiat 500 L MOT Pass Rate: 66.5% - Salvage Prophet"></a>

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Fiat 500 L most common MOT failure: Lambda coefficient outside the default limits or the range specified by the manufacturer (1.7% of tests)

<a href="https://www.salvageprophet.co.uk/mot/fiat-500-l"><img src="https://www.salvageprophet.co.uk/badge/failure/fiat-500-l.svg" width="340" height="106" alt="Fiat 500 L most common MOT failure: Lambda coefficient outside the default limits or the range specified by the manufacturer (1.7% of tests) - Salvage Prophet"></a>

All 2,005 models ranked by MOT pass rate