2025 MOT results
Renault Laguna common problems
The most common reason a Renault Laguna fails its MOT is a broken coil spring, on 19.9% of its 3,456 failed tests in 2025. Against other cars of the same age, 4 faults stand out, the widest gaps being: corroded brake pipes at 6.0% of failures against 2.7% expected; a split joint boot at 12.8% of failures against 6.2% expected; a broken coil spring at 19.9% of failures against 9.7% expected.
- Tests in 2025 7,473 Cars aged three and over
- Failed first time 46.2% 3,456 tests
- Found a dangerous defect 11.2% Unsafe to drive away
- Ended with an advisory 72.1% A problem to watch, not a failure
What fails a Renault Laguna MOT
Each bar is the share of failed Renault Laguna tests with that defect. Where we can compare it with cars of the same registration years, the marker shows what an average car of those ages records (12 of the 12 items below).
Most common reasons for failure
A test can fail for more than one defect, so shares add up to more than 100%.
| Defect | Share of failed tests |
|---|---|
| Coil spring: fractured or broken Suspension | 19.9% |
| Position lamp: not working Lamps, reflectors and electrical equipment | 19.4% |
| Drive shafts: constant velocity boot split or insecure, no longer prevents the ingress of dirt Body, chassis, structure | 12.8% |
| Headlamp aim: projected beam image is obviously incorrect Lamps, reflectors and electrical equipment | 7.3% |
| Suspension arms: pin or bush excessively worn Suspension | 6.6% |
| Brake pads: less than 1.5 mm thick Brakes | 6.5% |
| Suspension arms: ball joint excessively worn Suspension | 6.2% |
| Rigid brake pipes: excessively corroded Brakes | 6.0% |
| Shock absorbers: serious fluid leak Suspension | 6.0% |
| Headlamp: not working on dipped beam Lamps, reflectors and electrical equipment | 5.9% |
| Tyres: tread depth below requirements of 1.6mm Tyres | 5.7% |
| Parking brake efficiency below requirements Brakes | 5.6% |
Source:DVSA,UK Motoring analysis 2025 Updated
-
Broken coil spring
19.9% of failures 9.7% expected 2.1 times as often
A broken suspension spring, which usually snaps in the bottom coil and often fails on both sides within a year.
Look at each corner for a sagging ride height, and listen for a knock over speed bumps.
-
Sidelight out
19.4% of failures 13.4% expected somewhat more often
A sidelight, also called a position lamp, not working. It marks the width of the car at night.
Walk round the car with the lights on and the hazards going; these are the cheapest failures to avoid.
-
Split joint boot
12.8% of failures 6.2% expected 2.1 times as often
A split rubber boot on a joint or driveshaft. The joint may still be sound, but dirt and water get in once the boot is open.
Turn the wheels to full lock and look behind them for greasy splits in the rubber concertina.
-
Headlamp aim out of line
7.3% of failures 7.0% expected about as expected
The beam pattern points too high, too low, or in the wrong place, so it either dazzles others or lights too little road.
Nothing to do at the roadside, but a garage resets the aim in minutes; a sagging suspension corner or a heavy boot load can throw it out.
-
Worn suspension bushes
6.6% of failures 5.4% expected somewhat more often
Worn rubber bushes in a suspension arm, letting the arm move under load.
Perished or cracked rubber at the inner ends of the lower arms, visible with the wheel turned.
-
Worn brake pads
6.5% of failures 4.7% expected somewhat more often
Friction material worn under 1.5mm, thinner than the point most manufacturers call the limit.
Look through the wheel spokes at the pad against the disc; wear indicators squeal before they get this far.
Which parts of the car fail
Lamps, reflectors and electrical equipment is the area that most often fails a Renault Laguna, on 49.7% of failed tests. The widest gap against cars of the same registration years is suspension, on 46.8% against 40.8% expected.
Failure categories
DVSA's own sections of the test. The marker is what cars of the same registration years record.
| Defect category | Share of failed tests |
|---|---|
| Lamps, reflectors and electrical equipment | 49.7% |
| Suspension | 46.8% |
| Brakes | 30.8% |
| Body, chassis, structure | 16.9% |
| Tyres | 15.5% |
| Visibility | 12.0% |
| Steering | 8.0% |
| Noise, emissions and leaks | 7.2% |
Source:DVSA,UK Motoring analysis 2025 Updated
What testers warn about
72.1% of Renault Laguna tests ended with at least one advisory: a fault the tester found that did not fail the test. On Renault Lagunas, these are the items to ask about on a car you are viewing, because they are what the last tester expected to go next.
Most common advisories
Share of all tests, passes included.
| Advisory | Share of tests |
|---|---|
| Tread depth: worn close to legal limit or worn on edge Tyres | 21.6% |
| Brake discs: worn, pitted or scored, but not seriously weakened Brakes | 19.5% |
| Rigid brake pipes: corroded, covered in grease or other material Brakes | 14.3% |
| Suspension arms: pin or bush worn but not resulting in excessive movement Suspension | 11.3% |
| Tyres: slightly damaged or cracking or perishing Tyres | 10.2% |
| Coil spring: corroded Suspension | 9.5% |
| Brake pads: wearing thin Brakes | 9.2% |
| Engine oil leak, but not excessive Noise, emissions and leaks | 9.2% |
| Linkage ball joint has slight play Suspension | 5.4% |
| Registration plates: deteriorated but not likely to be misread Identification of the vehicle | 4.8% |
| Play in steering rack inner joint(s) Non-component advisories | 4.6% |
| Flexible brake hoses: slight corrosion to ferrule Brakes | 4.1% |
Source:DVSA,UK Motoring analysis 2025 Updated
Renault Laguna problems: common questions
What is the most common problem with a Renault Laguna?
Of the faults that fail an MOT, “Coil spring: fractured or broken” is the most common: it appears on 19.9% of failed Renault Laguna tests. Across categories, lamps, reflectors and electrical equipment is the area that most often fails one, on 49.7% of failed tests.
How often does a Renault Laguna fail its MOT?
46.2% of Renault Laguna tests in 2025 were not passed first time, from 7,473 tests of cars aged three and over. Allowing for the age and mileage of the cars tested, that gives it a UK Motoring Reliability Score of 43 out of 100, where 50 is as expected.
Does anything fail more often on a Renault Laguna than on other cars?
Yes. “Rigid brake pipes: excessively corroded” appears on 6.0% of its failures against 2.7% for cars of the same age, and “Drive shafts: constant velocity boot split or insecure, no longer prevents the ingress of dirt” appears on 12.8% of its failures against 6.2% for cars of the same age. Where an item is missing from the national figures for a year, we use the smallest share those figures show, so the comparison never overstates the difference.
Are these the same as breakdowns or known faults?
No. These are the items a tester recorded at the MOT, which covers condition and safety: lamps, brakes, tyres, suspension, corrosion and emissions. A gearbox that is unpleasant, an infotainment screen that has died, or a car that will not start on a cold morning are not part of the test, so they are not in these figures.
Where do the figures come from?
Every normal MOT test of a Renault Laguna aged three and over in Great Britain in 2025, from DVSA's anonymised MOT results. Retests are excluded, and the same fault on more than one wheel counts once.
Data stories to read next
Data sources and methodology
| Figures | Source | Period | Records | Updated |
|---|---|---|---|---|
| MOT defects and advisories | Anonymised MOT tests and results Driver and Vehicle Standards Agency Derived statistics UK Motoring | 2025 | 7,473 MOT tests | 19 September 2026 |
- Shares for defects are of failed tests; shares for advisories are of all tests. A test can carry several defects, so shares add to more than 100%.
- The expected share is what an average car of the same registration years records, weighted by where this model’s failures fall. Where an item is outside the national figures for a year, the smallest share those figures show is used in its place, which is an upper bound, so the comparison never overstates a model’s problems. No expectation is published where less than 80% of the model’s failures can be compared.
- Great Britain only: DVSA does not run MOT testing in Northern Ireland. Cars under three years old are not tested.
- The descriptions of what each part does are general and the same on every model. Every figure comes from the MOT data.
Contains public sector information licensed under the Open Government Licence v3.0.