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2018 Mercedes-Benz X — MOT History by Age

How cars manufactured in 2018 perform at MOT as they age

8 years
Current Age
82.2%
Latest Pass Rate
6,585
Total Tests (All Years)
69,405 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 6

This car: 82.2%
Average: 73.4%

✅ 8.8% above average (18367 models compared)

How This Car Ages

Pass rate progression for the 2018 Mercedes-Benz X as it ages.

3 yrs80.9%
4 yrs81.0%
5 yrs77.5%
6 yrs82.2%

Bar chart showing pass rate by car age from 3 to 6 years

Fail Rate %
📊 View as table
AgePass RateTests
3 yrs80.9%1,402
4 yrs81.0%1,222
5 yrs77.5%1,396
6 yrs82.2%2,565

Pass Rate Trend

How the 2018 Mercedes-Benz X pass rate changes as it ages, from first MOT to most recent.

Trend shows improving over 4 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2024 (6 yrs)82.2%2,565
2023 (5 yrs)77.5%1,396
2022 (4 yrs)81%1,222
2021 (3 yrs)80.9%1,402

Year-by-Year MOT Results

2021
80.9%
Age (yrs) 3Tests 1,402Avg Mileage 38,523Top Failure Brakes — 21.0%
2022
81.0%
Age (yrs) 4Tests 1,222Avg Mileage 48,014Top Failure Brakes — 21.6%
2023
77.5%
Age (yrs) 5Tests 1,396Avg Mileage 59,583Top Failure Brakes — 20.9%
2024
82.2%
Age (yrs) 6Tests 2,565Avg Mileage 69,405Top Failure Brakes — 10.9%

Common MOT Failures

Top failure categories across all test years for 2018 Mercedes-Benz X, with age trends.

Brakes
18.6%
↓ Decreases with age
Tyres
14.2%
↓ Decreases with age
Lamps, reflectors and electrical equipment
7.1%
— Consistent
Visibility
5.7%
— Consistent
Noise, emissions and leaks
5.2%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Brakes21.0% (3 yrs)10.9% (6 yrs)
-10.1%
🟢 ↓
Tyres16.3% (3 yrs)8.0% (6 yrs)
-8.3%
🟢 ↓
Noise, emissions and leaks2.1% (3 yrs)4.7% (6 yrs)
+2.6%
🔴 ↑
Visibility6.3% (3 yrs)4.5% (6 yrs)
-1.8%
⚪ —
Lamps, reflectors and electrical equipment5.3% (3 yrs)6.4% (6 yrs)
+1.1%
⚪ —

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes-Benz X page →

About This Data

This page shows how Mercedes-Benz X cars manufactured in 2018 perform at MOT as they age. Data spans from 2021 to 2024, covering 6,585 tests. Pass rates naturally decline with age as components wear.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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