Fiat

Fiat 500x (2018)

2,850 real MOT outcomes analysed • 90% first-time pass rate

2018 Fiat 500x

CarHunch analysed 2,850 real MOT records for the 2018 Fiat 500x. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2018 Fiat 500X passes its MOT on the first attempt 90% of the time, which is 10 percentage points above the UK average and a genuinely strong result. The dangerous defect rate of 17.9% is reasonably clean, and petrol models edge ahead of diesels (90.4% vs 87.5% pass rate), so fuel choice matters slightly here.

At 32,090 miles median for a six-year-old car, these vehicles are running lean, which partly explains the high pass rate. The average of 0.67 failures and 5.1 advisories per test suggests minor wear-and-tear issues crop up, but nothing systemic—if you're buying one, get the service history checked and budget for routine suspension and brake maintenance as mileage climbs.

The 2018 Fiat 500x passes its MOT first time at roughly the UK average rate (90%) — solid but worth checking this vehicle's history carefully.

⚠️ Around 1 in 8 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
90%
UK average ~80%
Better than average
Dangerous (ever)
17.9%
At least once in MOT history
Check this vehicle
Avg failures / car
0.67
Over 5.7 tests on record
Moderate
Typical mileage
32k
Middle half: 24k–41k
For context
Good baseline reliability. A 90% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.
🔧 Expect consumable spend. An average of 5.1 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 2,850 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

What tends to go wrong

Across 2,850 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 56.5%
Offside Front Tyre worn close to legal limit/worn on edge · Nearside Front Tyre worn close to legal limit/worn on edge · Offside Rear Tyre slightly damaged/cracking or perishing · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Other issues 25.2%
Nearside Rear Child Seat fitted not allowing full inspection of adult belt
Brake wear 22.4%
Front Brake pad(s) wearing thin · Rear Brake disc worn, pitted or scored, but not seriously weakened · Offside Rear Brake disc worn, pitted or scored, but not seriously weakened · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Lighting 17%
Nearside Front Position lamp not working · Offside Front Position lamp not working
Usually cheap to fix. Worth confirming all lights work before collecting.
Suspension & steering 13.1%
Offside Front Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt · Nearside Front Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Data covers a 3-year window centred on 2018.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 2,850 Fiat 500x cars.

UK

Before you buy a 2018 Fiat 500x

Based on MOT data from 2,850 vehicles — here's what to check.

  • 📋 Check the full MOT history. 17.9% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (86%) 2,439 90.4% 0.63
Diesel (14%) 411 87.5% 0.86

Colour Breakdown

Based on 34,186 Fiat 500x vehicles registered in the UK — across all years. From DVLA registration records.

Grey 22.4%
7,656
Red 20.4%
6,976
Black 17%
5,816
White 16.5%
5,657
Blue 12.5%
4,262
Green 4.5%
1,544
Bronze 3%
1,015
Beige 2.8%
946
Yellow 0.6%
205
Silver 0.2%
53
Cream 0.1%
34
Orange 0.1%
22

Mileage Distribution

Most 2018 Fiat 500x vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

32,090
typical
23,926
low mileage
41,495
high mileage

Half of all 2018 Fiat 500x vehicles fall between 23,926 and 41,495 miles.

Is the mileage you're seeing normal?
Under 23,926 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
23,926–41,495 miles — normal for age. This is where most 2018 Fiat 500xs sit.
Over 56,018 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2018 Fiat 500x — Still on the Road

Almost all 2018 Fiat 500xs are still on the road.

Strong survival — 2,729 vehicles still getting MOTs in 2025, 99% of the peak.

2,725 2,729 2021 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

5.7
Avg MOT tests per vehicle
0.67
Avg failures per vehicle
5.1
Avg advisories per vehicle
Other model years — Fiat 500x: All 500x years → Which year to buy? →
2015 2016 2017 2019 2020 2021 2022

Or browse all models: Fiat →

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Compare with another model

See how the 2018 Fiat 500x stacks up against a rival.

Average reliability — agree?