MOT Risk Index.co.uk

Renault Grand Scenic — MOT statistics 2024

The Renault Grand Scenic failed 48.87% of 1,897 first MOT attempts in 2024 ("first-time", excluding retests). Adjusted for the age of the fleet, its initial-failure ratio is 151.1 (100 = expected for its age profile). This car fails its MOT about 51% more often than expected for its age. Small sample — treat with care.

MOT risk index 151.1, 95% CI 144.2–158.1 (100 = national average) 100 151.1 0 200
Index
151.1
100 = age-normal
Raw fail rate
48.87%
n = 1,897
Dangerous /100
15
national ≈11
Rank
743 of 761
lower index = better

Age-adjusted peer: Citroen C4 Grand Picasso (index 151.9) — the two published results are 0.8 index points apart.

Renault Grand Scenic common problems: what actually fails the MOT

Lamps, reflectors and electrical equipment stand out at 29.5 per 100 tests, against 11.7 per 100 tests across UK vehicles of the same ages.

higher bar = fails more oftenrate per 100 tests

Renault Grand Scenic common problems: what actually fails the MOT — 2024 UK MOT data

family vs national — matched to UK vehicles of the same ages — top component groups, per 100 tests. Legend: This family · National avg. Combined labels: family / national average. A gap here reflects how these vehicles are driven, used and maintained as well as how they were built — an MOT defect is a test outcome, not a breakdown.

Component-group comparison table

Each ratio carries a 95% interval. With 6 groups compared here, roughly one apparent difference in twenty is chance alone.

GroupThis familyCases behind itUK, same agesFamily / national
Lamps & electrical29.53,92711.72.52×2.44–2.60
Suspension18.52,45911.01.69×1.62–1.75
Body & structure12.81,7102.94.43×4.24–4.66
Brakes12.51,6688.51.47×1.40–1.55
Visibility10.31,3766.71.54×1.47–1.63
Tyres10.11,3468.91.14×1.08–1.20
Named defects — items per 100 initial tests, this family vs UK national average; this model measured on 13,315 tests, 2019-2024, national column 2024
What failedper 100 tests (this family)per 100 tests (UK average)ratio family / UKWhat to check
Transmission shaft constant velocity joint boot…A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc9.461.566.07×Ask the seller about: A transmission shaft constant velocity joint boot missing or
Stop lamp missing, inoperative or in the case of…Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning7.711.505.14×Try every light and switch — lamps are a top failure
Spring or spring component fractured or seriously…A spring or spring component fractured or seriously weakened9.032.863.16×Ask the seller about: A spring or spring component fractured or seriously weakened
Steering ball joint with excessive wear or free playA steering ball joint with excessive wear or free play5.471.224.47×Ask the seller about: A steering ball joint with excessive wear or free play
Brake lining or pad worn below 1.5mma brake lining or pad worn below 1.5mm4.372.152.03×Feel for brake judder and pulling on the test drive
Suspension pin, bush or joint excessively wornA suspension pin, bush or joint excessively worn6.874.871.41×Listen for knocks over bumps — worn joints show up on the test
Wiper blade missing or obviously not clearing the…Wiper blade missing or obviously not clearing the windscreen4.082.221.84×Check wipers, washers and windscreen chips in the driver's view
Tyre tread depth not in accordance with the…Tyre tread depth not in accordance with the requirements4.663.591.30×Check tyre tread depth across the full width
Lamp missing, inoperative or in the case of a…A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning3.072.091.47×Try every light and switch — lamps are a top failure
Rear registration plate lamp or light source…A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources3.562.831.26×Try every light and switch — lamps are a top failure

Named defects ranked by how much more often they appear than the national average — not by raw rate.

Renault Grand Scenic MOT advisories: what gets flagged

Tyres are highest at 49.8 per 100 tests; Steering is lowest at 3.3 per 100 tests — the gap is 46.5 per 100 tests.

higher bar = flagged more oftenadvisory items per 100 initial tests

Renault Grand Scenic MOT advisories: what gets flagged — 2024 UK MOT data
Advisory rates table
GroupAdvisories per 100
Tyres49.8
Brakes49.1
Suspension20.5
Non-component advisories14.5
Lamps & electrical6.2
Steering3.3

Advisories are wear the tester noted but didn't fail — what will need money soon.

Tyres, brakes and suspension: Renault Grand Scenic against cars of the same age

AgePartRenault Grand ScenicSame age, petrol and dieselDifference
5 yearsTyres6.715.061.65
5 yearsBrakes4.943.091.85
5 yearsSuspension2.742.190.55
6 yearsTyres7.515.541.97
6 yearsBrakes7.193.813.38
6 yearsSuspension5.663.721.94
7 yearsTyres7.525.951.57
7 yearsBrakes6.844.552.29
7 yearsSuspension9.965.684.28
8 yearsTyres7.536.311.22
8 yearsBrakes7.815.382.43
8 yearsSuspension14.377.786.59

Failing items per 100 initial tests, 2019-2024. The comparison group is every petrol or diesel car tested at the same age, so weight and drivetrain show up rather than fleet age.

If a car like this fails, does it fail again?

A failure rate does not say whether a failure is a one-off or the start of something. This follows the same vehicles into their next ordinary MOT a year later — retests after a repair are excluded, because they follow a failure by definition. 2019-2024.

After this year's testFails next yearVehicles followed
It failed44.1%1,085
It passed39.2%6,040

A failed test raises next year's chance of failing again by 4.9 percentage points. The failure most likely to come back is visibility — 40.7% of those vehicles fail again next year. Some of this is the vehicle and some is the owner: a car that was let go once tends to be let go again. One caveat: a car that fails may be sold or scrapped rather than tested again, so these figures describe the vehicles that came back.

Adjusted for how much these are actually driven

The headline index adjusts for the fleet's age. Wear, though, follows mileage: a three-year-old taxi and a three-year-old garage queen sit in the same age band. These two rows compare every car with vehicles of the same age, and then with vehicles of the same age and the same annual mileage, 2019-2024, on 13,276 tests. Both stand on the six-year corpus so they are measured on identical data — compare them with each other, not with the headline index above, which is measured on 2024 alone.

Standardised forIndexReading
Age only159.8fails more often than expected
Age and annual mileage147.0fails more often than vehicles driven as much
Share doing under 3,000 miles a year0.6%a normal spread of use

Mileage matters here: matching on how much these are driven moves the figure by 12.8 points — this fleet works harder than the vehicles it is measured against, so the age-only view penalises it — but it does not change which side of normal the car sits on. One limit to keep in mind: mileage is partly a result of how often a car breaks down — one that spends weeks in the workshop covers fewer miles — so the mileage-matched figure can understate a real weakness. Tests with no usable odometer reading are left out of it.

How the Renault Grand Scenic compares with cars of its own age and size

Not against the whole fleet — against cars of the same size class tested at the same age, 2019-2024.

AgeRenault Grand ScenicSame class, same ageDifferenceTests
5 years38.92%17.41%+21.51 pp1,133
6 years39.08%20.75%+18.33 pp1,891
7 years41.03%24.32%+16.72 pp2,208
8 years43.38%28.14%+15.23 pp2,151
9 years46.33%32.02%+14.31 pp2,152
10 years47.34%35.59%+11.74 pp1,933
11 years46.68%38.65%+8.03 pp1,159
12 years54.93%41.25%+13.68 pp406

Raw first-time failure rates within each age, so fleet age cannot flatter either side. A positive difference means this model fails more often than its own class at that age.

How does the Renault Grand Scenic perform as it gets older?

The Grand Scenic at age 9 stands out at 45.5%, against 26.5% for all vehicles of the same age.

higher = larger sharecompare shares in percentage points

How does the Renault Grand Scenic perform as it gets older? — 2024 UK MOT data

Chart axes: car age, years · failure-rate scale 0–59%.

Takeaway: a 10-year-old Grand Scenic has roughly a 48% chance of failing its MOT.

Data table
AgeRenault Grand ScenicAll vehiclesGap
945.5%26.5%+18.9 pp
1047.6%30.1%+17.5 pp
1148.6%33.2%+15.4 pp
1254.5%35.7%+18.8 pp

Is a Renault Grand Scenic ULEZ compliant?

The share of classifiable 2024 Renault Grand Scenic MOT tests likely ULEZ compliant by first-registration date is 0.4%.

Based on 1,897 classifiable initial MOT tests. This describes the tested fleet, not a specific car. MOT data do not record Euro class, so likely compliance is inferred from fuel and first-registration date. For the only authoritative answer, check the registration with TfL's official ULEZ checker.

higher = larger share likely compliantinferred from fuel and first-registration date; not a recorded Euro class

Age-band estimate from classifiable initial MOT tests
Vehicle age at testLikely ULEZ-compliant shareTests
Under 3 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0
3–5 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0
6–7 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0
8 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0
9 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 110
10–14 years0.4%
Check a registration with TfL
n = 1,784
15–17 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 3
18 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0
19 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0
20+ yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0

How dangerous are Renault Grand Scenic MOT failures?

Major defects stand out at 76.3 per 100 tests, against 52.8 per 100 tests nationally.

higher bar = fails more oftenrate per 100 tests

How dangerous are Renault Grand Scenic MOT failures? — 2024 UK MOT data
Severity table
SeverityThis family /100National /100Family / national
Minor13.0014.220.91×
Major76.3052.751.45×
Dangerous14.5411.151.30×

Chart values: Minor 13.0 · Major 76.3 · Dangerous 14.5.

Per 100 tests on this family. National average: Minor 14.2 · Major 52.8 · Dangerous 11.2 per 100.

Does the month of a Renault Grand Scenic MOT matter?

Oct is highest at 45.2%; May is lowest at 40.9% — the gap is 4.2 percentage points.

higher = larger sharecompare shares in percentage points

Does the month of a Renault Grand Scenic MOT matter? — 2024 UK MOT data

Chart scale: 27%–47%.

bars: Renault Grand Scenic · dashed: all class-4 cars

Month-by-month table
MonthRenault Grand ScenicAll vehiclesGap
Jan44.71%31.12%+13.6 pp
Feb42.37%29.99%+12.4 pp
Mar41.71%28.26%+13.4 pp
Apr44.98%29.78%+15.2 pp
May40.92%28.79%+12.1 pp
Jun42.63%28.15%+14.5 pp
Jul42.05%29.33%+12.7 pp
Aug44.28%29.2%+15.1 pp
Sep43.29%28.19%+15.1 pp
Oct45.16%30.34%+14.8 pp
Nov44.44%30.58%+13.9 pp
Dec44.85%29.33%+15.5 pp

Takeaway: the spread between best and worst month is 4.2 percentage points — noticeable seasonality. Seasonality partly reflects registration-date clustering, not weather.

Before reading the shape: most of it is not about cars. Britain changes its registration plates twice a year, and 18.9% of these cars were first registered in March with another17.1% in September — 36% in two months against the 17% an even spread would give. An MOT falls due three years after first registration, so the buying calendar becomes the testing calendar. That shapes how many cars are tested each month — not how often they fail: the busiest months here are not the worst ones, so read the failure line on its own and the volume behind it separately.

Renault Grand Scenic average mileage by age

At age 11, the middle half of Grand Scenics runs from 78,570 miles to 116,904 miles, against 97,380 miles as the median.

further right = more milesmedian is the typical car; band is p25–p75

Bars: Renault Grand Scenic · dashed: all class-4 cars — 2024 UK MOT data

Chart axes: car age, years · odometer scale 0–134k mi.

Does high mileage mean more Renault Grand Scenic MOT failures at the same age?

Within the same age group, split by odometer (2024 MOTs), so this separates wear from age: at ages 10–14, 43% of those with 40,000–70,000 miles failed first time versus 49.2% of those with over 140,000 miles.No clear mileage gap inside this age group, among cars still being tested.

Does high mileage mean more Renault Grand Scenic MOT failures at the same age? — 2024 UK MOT data
Renault Grand Scenic: first-time failure by mileage within each age group (2024)
AgeOdometer% failing95% intervalTests
10–1440-70k miles43%37.3–48.8%284 (rough estimate)
10–1470-100k miles49.7%46–53.5%682
10–14100-140k miles51.9%47.9–55.9%605
10–14140k+ miles49.2%42–56.4%181 (rough estimate)

line: median · band: middle half of the fleet (p25–p75)

Mileage by age (p25 / median / p75)
Agep25Medianp75Tests
966,33782,725100,478110
1071,47686,156105,907689
1178,57097,380116,904714
1285,624105,462127,170312

A typical 11-year-old Grand Scenic has ~97,380 miles on the clock. Much more — ask why; much less — check for gaps in the MOT history.

Where in Britain the Renault Grand Scenic fails its MOT most

Canterbury area is highest at 51.4%; Milton Keynes area is lowest at 33.0% — the gap is 18.4 percentage points.

higher = larger sharecompare shares in percentage points

Renault Grand Scenic line: median · band: middle half of the fleet (p25–p75) — 2024 UK MOT data
Toughest areas% failingvs model overall
Canterbury (CT)51.4%+7.9 pp
Coventry (CV)50.41%+6.9 pp
Cardiff (CF)49.08%+5.6 pp
Swansea (SA)48.94%+5.4 pp
Easiest areas% failingvs model overall
Milton Keynes (MK)33.02%-10.5 pp
Derby (DE)33.52%-10.0 pp
Southampton (SO)35.16%-8.4 pp
Leicester (LE)36.63%-6.9 pp

Every dot is a postcode area — size = how many were tested there, colour = share failing. These figures are not age-adjusted: coastal and rural areas often run older fleets and salted roads, so higher raw fail rates do not automatically mean a worse local stock of this model.

Map labels: Scotland · N. England · Wales · London · S. West. Colour scale: 37%–50% failing.

Renault Grand Scenic survival: which cars are still on the road

By age 13 is well below the reference at 5.6%, against 100.0% at the ages 4–6 reference level.

higher = larger sharecompare shares in percentage points

Renault Grand Scenic survival: which cars are still on the road — 2024 UK MOT data

Chart axes: car age, years · survival vs ages 4–6 · scale 0–105%.

Survival vs fail rate by age
AgeTestsSurvival vs ages 4–6Fail %
41459.6%24.83%
51,13374.9%38.92%
61,891100%39.08%
72,208100%41.03%
82,151100%43.38%
92,152100%46.33%
101,933100%47.34%
111,15976.7%46.68%
1240626.9%54.93%
13855.6%49.41%

By age 11, only about 77% as many cars of this family present for MOT as at ages 4–6 (reference n≈1,512); survivors still fail at 46.7% vs 38.9% at age 5. Older cars that still appear are a selected subset — weaker ones have already left.

How many miles does a Renault Grand Scenic last?

100,000+ miles stands out at 23.5%.

higher = larger sharecompare shares in percentage points

OdometerTests ≥ thresholdShare of sample
100,000+ miles3,11523.47%

Of 13,275 tests of this family with a usable odometer in 2024, 23.5% had reached 100k miles. This is a cross-section of cars still presenting for MOT, not a full birth cohort.

How many years is a Renault Grand Scenic likely to last?

Bought at age 5 is highest at 8.2 years; Bought at age 10 is lowest at 1.3 years — the gap is 6.9 years.

bigger number = longer remaining lifeyears on the observed survival curve

Age nowTypical mileage (p50)Expected years left
5—at least 8.2
8—at least 3.3
10—at least 1.3

estimateEstimate only — not a warranty: a typical 10-year-old example of this family has at least 1.3 expected years of further MOT-present life. The curve is observed only until age 11, so the true figure is likely higher.

Renault Grand Scenic faults that come together

Steering + Suspension stand out at 3.40×, against 1.00× if the faults were independent.

above 1.0× = more than expectedbelow 1.0× = less

Group AGroup BTogetherLift
SteeringSuspension3303.4× (rough estimate)
Road WheelsSuspension253.29× (rough estimate)
Lamps, reflectors and electrical equipmentRoad Wheels333.24× (rough estimate)
Lamps, reflectors and electrical equipmentNoise, emissions and leaks1653.2× (rough estimate)
BrakesNoise, emissions and leaks683.09× (rough estimate)
Noise, emissions and leaksSuspension1132.95× (rough estimate)
Noise, emissions and leaksVisibility702.91× (rough estimate)
Noise, emissions and leaksSteering442.89× (rough estimate)
Noise, emissions and leaksTyres592.85× (rough estimate)
Lamps, reflectors and electrical equipmentSeat belts and supplementary restraint systems492.75× (rough estimate)
BrakesSeat belts and supplementary restraint systems202.63× (rough estimate)
BrakesSteering1422.55× (rough estimate)
BrakesTyres1922.54× (rough estimate)
BrakesLamps, reflectors and electrical equipment4362.32× (rough estimate)
BrakesSuspension3252.32× (rough estimate)
Lamps, reflectors and electrical equipmentSteering2952.26× (rough estimate)
Lamps, reflectors and electrical equipmentSuspension7402.25×
Lamps, reflectors and electrical equipmentTyres3992.25× (rough estimate)
Lamps, reflectors and electrical equipmentVisibility4602.23× (rough estimate)
SteeringTyres1152.2× (rough estimate)
Seat belts and supplementary restraint systemsSuspension292.18× (rough estimate)
TyresVisibility1762.13× (rough estimate)
BrakesVisibility1822.07× (rough estimate)
SuspensionTyres2642× (rough estimate)
Body, chassis, structureLamps, reflectors and electrical equipment4551.87× (rough estimate)
SuspensionVisibility2841.85× (rough estimate)
Body, chassis, structureBrakes1871.8× (rough estimate)
Body, chassis, structureTyres1761.8× (rough estimate)
Body, chassis, structureNoise, emissions and leaks511.8× (rough estimate)
SteeringVisibility1051.73× (rough estimate)
Body, chassis, structureVisibility1901.68× (rough estimate)
Body, chassis, structureSuspension2471.36× (rough estimate)
Body, chassis, structureSteering710.99× (not clearly above chance) (rough estimate)
Seat belts and supplementary restraint systemsTyres18too few (rough estimate)
Seat belts and supplementary restraint systemsSteering17too few (rough estimate)
Seat belts and supplementary restraint systemsVisibility17too few (rough estimate)
Body, chassis, structureSeat belts and supplementary restraint systems16too few (rough estimate)
Identification of the vehicleLamps, reflectors and electrical equipment13too few (rough estimate)
Road WheelsTyres12too few (rough estimate)
BrakesRoad Wheels11too few (rough estimate)
Body, chassis, structureRoad Wheels11too few (rough estimate)
Road WheelsVisibility10too few (rough estimate)
Noise, emissions and leaksSeat belts and supplementary restraint systems9too few (rough estimate)
BrakesIdentification of the vehicle7too few (rough estimate)
Body, chassis, structureIdentification of the vehicle7too few (rough estimate)
Identification of the vehicleSuspension7too few (rough estimate)
Identification of the vehicleNoise, emissions and leaks6too few (rough estimate)
Road WheelsSteering6too few (rough estimate)

Defects in «Lamps, reflectors and electrical equipment» and «Suspension» appear together 2.25× more often than chance (740 co-occurrences in the same test; lift≥1.3, n≥500).

Lift = how many times more often both groups appear on the same test than if independent. A pair is listed from 5 tests with both faults; the lift is shown from 20, and called above chance only when its 95% interval excludes 1 (see rough estimates).

Is low mileage better for a Renault Grand Scenic?

Cars driven under 5,000 miles a year is well below the reference at 31.7%, against 44.4% for cars driven 8,000–12,000 miles a year.

higher = larger sharecompare shares in percentage points

BandFail %Tests
<5k miles/year31.65%654
8–12k miles/year44.39%5,619
Gap (low − normal)-12.74 pp—
By fuel and age

Diesel

AgeLow-use fail %nNormal fail %nGap pp
535.715640.55471-4.84 pp
633.0110338.21793-5.2 pp
72511241.4954-16.4 pp
832.3810543.8943-11.42 pp
933.6411047.18975-13.54 pp
1033.6410751.49905-17.85 pp
1129.825747.52564-17.69 pp

At matched ages 5–14, cars averaging under 5k miles/year fail at 31.6% vs 44.4% for 8–12k miles/year — 12.7 pp lower (n_low=654, n_normal=5,619). In this family low annual use is associated with fewer MOT fails, not more — the ‘garage queen’ penalty is not visible in overall fail rates. Diesel alone: 31.7% low-use vs 44.4% normal (-12.7 pp).

Which Renault Grand Scenic engine is best?

diesel 1.2–1.5 is highest at 104.4; diesel 1.5–1.8 is lowest at 90.2 — the gap is 14.2 points.

below 100 is betterabove 100 is worse100 = normal for this model at that age

Engine bands against this model's own failure rate at the same ages
FuelCapacityvs own age normRaw fail %Tests
diesel1.5–1.8 litre90.239.83%3,952 (rough estimate)
diesel1.2–1.5 litre104.445.06%9,217

Splitting this model by fuel alone hides the thing that actually differs. Within the same badge, the diesel 1.2–1.5 runs at 104.4 against this model's own age norm while the diesel 1.5–1.8 runs at 90.2 — a spread of 14.2 points between two cars that share a name.

Read this one with more care than the rest of the page. Age is held constant, but who buys which engine is not: the largest capacity in a range is often a performance or executive variant that is garaged, cherished and lightly driven, while the smallest is frequently a fleet or entry car worked hard from new. The gap below is real in the test records; how much of it is the engine and how much is the owner, this data cannot separate. Bands under 100 tests are not shown; bands under 5,000 tests are rough estimates.

Renault Grand Scenic MOT repair costs

The MOT-failure repair budget per test runs from £102.44 to £194.64, against £54.85 for the test itself.

bigger number = costs morepounds per test, MOT-failing faults only

MOT repairs, budget
£102–195
per test, repairs only
The test itself
£54.85
statutory cap, unchanged since 2010
How the figure is built: chance of failing × typical price of that repair
ComponentFails per 100 testsTypical repairIts priceContribution
Lamps, reflectors and electrical equipment29.5 (nat. 18.09)Battery replacement (standard 12V lead-acid)£140£41.30
Suspension18.5 (nat. 15.36)Suspension coil spring (single corner)£180£33.30
Brakes12.5 (nat. 11.25)Front brake pads (parts + labour, typical hatchback)£150£18.75
Tyres10.1 (nat. 8.7)Tyre (single mid-range 16" fitted)£90£9.09

Multiply how often each component fails on this model by what that repair usually costs, and you get the amount an owner should expect to budget per test for MOT-failing faults only — roughly £102 to £195, on top of the test fee itself. It is a budgeting figure, not a quote: the spread between a set of pads and a set of discs is most of the range.

Prices are modal quotes from a hand-kept catalogue of published UK garage guides — we do not scrape the booking sites, their terms forbid it, so this list is short and updated by hand with a source and date against each line. Each line prices one typical repair in that group, not a full remedy, and only groups our catalogue actually covers are counted. The contrast worth noticing is the second card: the legal maximum for the test has been £54.85 since 2010, while the repairs it uncovers have followed inflation the whole time.

For scale from a different direction: Warrantywise, which sees used-car warranty claims rather than test failures, puts the average claim at £2,052 across the ten highest-claim models it ranks and £539 for Honda, the lowest-claim make in its index (Warrantywise index 2026, 1.6 million claims, cars aged 3–15). Those sit an order of magnitude above the figures in this table, and the gap is the point: a warranty claim is a gearbox or an engine, which almost never fails an MOT, while the faults that do fail one are corrosion, lamps and tyres, which no warranty pays for. The two numbers answer different questions and neither replaces the other.

Renault Grand Scenic running costs for a fleet

Vehicles failing at age 10 stand out at 48.0%, against 45.0% at age 9, tested in the same year.

higher = larger sharecompare shares in percentage points

Fails per 100 at age 9
45
vehicles needing work (rough estimate: 110 tests)
At age 10
48
other cars of this model tested at age 10 in 2024 (rough estimate: 689 tests)
Repairs per 100
£10,244
plus £5,485 in test fees
Off the road
1d
median; 45.89% cleared same day
Failure rate and typical odometer by age
AgeFailsMedian odometerTestsGap vs age 5
945.45%82,725110—
1047.61%86,156689—
1148.6%97,380714—
1254.49%105,462312—

No single year stands out as the point where this model starts costing more: the year-to-year steps in its failure rate are too small or rest on too few tests to name one (D1 rule: a step is named only with at least 2,000 tests on both sides and a jump above 3 percentage points).

Repair spend uses the same modal prices as the section above, so it inherits the same limits: one typical repair per component group, not a full remedy. Downtime is the gap between the failed test and the passed re-test, which is the window a vehicle is legally off the road.

Renault Grand Scenic rust problems: where they corrode

Age-standardised corrosion susceptibility stands out at 3.06×, against 1.00× for the national age-standardised rate.

above 1.0× = rusts more than averagebelow 1.0× = rusts less

How it rusts
3.06×
2.34% of tests record a corrosion defect vs 0.77% typical — age-standardised
Salt Belt exposure
68th
percentile among the models published here, from its tests across 0 postcode areas

This Renault Grand Scenic fails on corrosion far more often than average once age is held constant, and its owners live in areas that are saltier than most for the models we publish.

Corrosion is the one failure mode that is as much about geography as about the car. We keep the two apart on purpose: a model can look rusty simply because it is popular in Scotland, and a model can look clean simply because it is bought in Surrey. Blending them into a single score would hide which of the two is doing the work.

Exposure is this model's tests weighted by an area corrosion index built from frost days, salt load and distance to the coast — the composite validated at r = 0.42 against corrosion defects we actually record. It is published as a rank, not a raw score, because every mainstream model skews towards low-corrosion areas for the simple reason that most of Britain's cars are in the south. Susceptibility is standardised to the national age profile, so an old fleet does not get labelled a rusty model.

Does a Renault Grand Scenic advisory become a failure?

Suspension is highest at 24.6%; Non-component advisories are lowest at 0.0% — the gap is 24.6 percentage points.

higher = more likelypercentage is the observed transition probability

chance the same component fails at the next MOT, given an advisory now

Renault Grand Scenic chance the same component fails at the next MOT, given an advisory now — 2024 UK MOT data
Renault Grand Scenic, advisory → failure conversion by component group, chained tests 2019–2024. Chart labels and rates: Suspension 24.6% · Brakes 11.9% · Tyres 10% · Non-component 0%.
Advisory today → failure at the next test, with how long you have
ComponentFails next timeTypical lead timeMiles of warningAdvisories tracked
Suspension24.6%12 months7,3301,379
Brakes11.9%12 months6,9122,833
Tyres10.0%12 months7,2783,173
Non-component advisories0.0%——1,280

This is the question an advisory note actually raises, and it needs six years of test history to answer. We followed the same vehicles from one MOT to the next across 2019–2024 and measured how often a component that was merely advised came back as a genuine failure at the next test.

Read it as a budgeting horizon, not a prophecy: the most likely component above turns into a failure for about 25 in 100 cars, and the median gap is 12 months and roughly 7,330 miles. The rest were repaired, sold, scrapped, or simply held. Rows with fewer than 500 tracked advisories are not shown.

What will fail next on a Renault Grand Scenic?

Lamps, reflectors and electrical equipment after a failure at age 12-14 are highest at 35.6%; Visibility after a passed at age 3-5 is lowest at 6.9% — the gap is 28.7 percentage points.

higher = more likelypercentage is the observed transition probability

Probability of each component failing at the next test, by age and last result
AgeLast testMost likely next failuresCars tracked
3-5passedLamps, reflectors and electrical equipment 12.4% · Body, chassis, structure 10.9% · Visibility 6.9%856
3-5advisoryLamps, reflectors and electrical equipment 13.1% · Body, chassis, structure 11.3% · Tyres 8.1%620
3-5failureLamps, reflectors and electrical equipment 19.9% · Body, chassis, structure 17.0% · Visibility 10.8%896
6-8passedLamps, reflectors and electrical equipment 13.8% · Suspension 11.8% · Body, chassis, structure 7.3%1,853
6-8advisoryLamps, reflectors and electrical equipment 17.8% · Suspension 14.7% · Body, chassis, structure 9.3%1,644
6-8failureLamps, reflectors and electrical equipment 23.1% · Suspension 19.8% · Body, chassis, structure 12.1%2,556
9-11passedLamps, reflectors and electrical equipment 20.5% · Suspension 13.7% · Brakes 7.1%561
9-11advisoryLamps, reflectors and electrical equipment 23.5% · Suspension 21.3% · Steering 12.0%710
9-11failureLamps, reflectors and electrical equipment 27.6% · Suspension 25.8% · Brakes 10.6%1,102
12-14failureLamps, reflectors and electrical equipment 35.6% · Suspension 24.4% · Visibility 20.0%45 (rough estimate)

The same chains, cut differently: given a car's age and how its last test went, which component most often causes trouble at the following one.

The pattern that repeats across every family: a failure at one test roughly doubles the chance of a failure on the same component at the next one, and an advisory sits about half-way between a clean pass and a failure. Age bands in years; probabilities are per car, not per defect item.

Renault Grand Scenic ownership: what six years of MOTs show

The ten-day re-test pass rate is highest at 51.8%; The later re-test pass rate is lowest at 2.3% — the gap is 49.4 percentage points.

higher = larger sharecompare shares in percentage points

Fixed same day
45.89%
of failures re-tested
Fails /10k miles
0.588
miles actually driven
Clean streaks
25.58%
3+ tests, nothing noted
Odometer anomaly
0.418%
reading went backwards

Failing is usually a same-week event, not a disaster. Of 4,445 failures followed through to their re-test, 45.89% were repaired and passed the same day and 51.77% within ten days; the median gap is 1 day. 11,418 defect items were cleared in the process.

Per mile driven, not per year. Dividing failures by the miles that actually went onto the odometers between consecutive tests gives 0.588 failures per 10,000 miles, on a median of 6,800 miles a year across 2,395 chains. This is the number to compare between models — an annual rate quietly rewards cars that barely leave the drive.

Two populations hide inside one model. 25.58% of these cars strung together three or more tests with nothing recorded at all, while 44.4% carried the same advisory three times or more — the same fault, noted, ignored, noted again. When you buy used you are buying one of those two histories, and the MOT record shows which.

Odometer anomalies: 0.418% of 2,395 chains show a reading lower than the previous test, with a median drop of 17,453 miles. We call this an anomaly and not fraud on purpose — instrument swaps, imports, unit mix-ups and keying errors all land in the same bucket. Obvious typos (drops under 100 miles or over 90% of the reading) are already excluded.

Renault Grand Scenic MOT: quick answers

Renault Grand Scenic MOT Risk Index stands out at 151.1, against 100 for a car with the same age profile.

below 100 is betterabove 100 is worse100 = normal for this model at that age

What is the Renault Grand Scenic first-time MOT pass rate?
51.13% of first attempts passed in 2024 (1,897 tests). This is the first-time figure: retests after repair are excluded. Basis: first-time, excluding retests.
Why does this number differ from other sites?
Other sites often report a pass rate that includes retests or counts all attempts. Our 48.87% figure is the first-time initial failure rate, using 1,897 primary tests as the denominator (first-time, excluding retests). The age-adjusted MOT initial-failure ratio 151.1 is shown separately because raw rates compare fleet age as well as cars.

Compare the Renault Grand Scenic with other cars

Citroen Dispatch is highest at 152.3; Renault Grand Scenic is lowest at 151.1 — the gap is 1.2 points.

below 100 is betterabove 100 is worse100 = normal for this model at that age

Same brand

All Renault MOT statisticsRenault Trafic MOT statsRenault Kangoo MOT stats

Similar risk

Citroen C4 Grand Picasso (index 151.9)Vauxhall Vivaro (index 151.9)Citroen Dispatch (index 152.3)

Same size class

how Maserati GranTurismo compareshow Aston Martin DB7 compareshow BMW X7 compares

By build year

Renault Grand Scenic 2010Renault Grand Scenic 2012Renault Grand Scenic 2013Renault Grand Scenic 2014Renault Grand Scenic 2015

By area

Renault Grand Scenic MOT failure rate by postcode area

By failure group

Renault Grand Scenic body, chassis and structure failuresRenault Grand Scenic brakes failuresRenault Grand Scenic vehicle identification failuresRenault Grand Scenic lamps, reflectors and electrics failuresRenault Grand Scenic noise, emissions and leaks failuresRenault Grand Scenic road wheels failuresRenault Grand Scenic seat belts and airbags failuresRenault Grand Scenic steering failuresRenault Grand Scenic suspension failuresRenault Grand Scenic tyres failuresRenault Grand Scenic visibility failures


Data details & how to cite

Scope: class-4 vehicles (cars), initial tests only, outcomes pass / fail / fixed-on-the-spot at the station (PRS counts towards the failure rate — the defect was present at arrival). Index = observed initial failures ÷ failures expected for this fleet's exact age profile, ×100; margin of error is a 95% confidence interval. Covers ALL generations together — a 3-year-old and a 15-year-old are very different cars; a generation split is on the roadmap. Dataset release dataset_release_id=dvsa-2024-v2, frozen baseline; headline claim_id=family-stats:renault-g:dvsa-2024-v2. Full method: methodology.

Cite: MOT Risk Index (2026). Renault Grand Scenic MOT statistics 2024 (data release dvsa-2024-v2; downloadable dataset motriskindex-families-2024-v5, doi:10.5281/zenodo.22975051). https://motriskindex.co.uk/cars/renault-g/ · Published 2026-07-30.