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Mercedes-benz C 300 Sport Edition De Auto Reliability, MOT Pass Rate & Common Faults

Free Mercedes-benz C 300 Sport Edition De Auto car check

Is the Mercedes-benz C 300 Sport Edition De Auto reliable? We analysed 797 real MOT tests across 230 vehicles to find out.

Got a specific Mercedes-benz C 300 Sport Edition De Auto? Enter the reg for a free check:

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Data last updated: · Based on 797 real MOT tests
MOT Pass Rate
85.7%
Typical Mileage
55,692mi
Annual Mileage
13,399mi/yr
Est. Lifespan
yrs

The Mercedes-benz C 300 Sport Edition De Auto is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Mercedes-benz C 300 Sport Edition De Auto.

Mercedes-benz C 300 Sport Edition De Auto Number Plates

Number plates registered to a Mercedes-benz C 300 Sport Edition De Auto. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

Mercedes-benz C 300 Sport Edition De Auto MOT Pass Rate by Year

How likely is a Mercedes-benz C 300 Sport Edition De Auto to pass its MOT? Here's the pass rate for each registration year, newest first.

85.9%
2021
85.4%
2020

Mercedes-benz C 300 Sport Edition De Auto Common Faults & Problems

These are the most common serious faults found on Mercedes-benz C 300 Sport Edition De Auto models during MOT testing — flagged as dangerous or major failures that need immediate attention.

Tyre tread depth below requirements of 1.6mm 26
Tyre has ply or cords exposed 11
Tyre has ply or cords exposed 6
Tyre tread pattern not visible over the whole tread area when minimum depth required is 1.0mm 5
Tyre has ply or cords exposed 4
Tyre has a bulge, caused by separation or partial failure of its structure 3

Mercedes-benz C 300 Sport Edition De Auto Mileage — What's Normal?

How many miles does a typical Mercedes-benz C 300 Sport Edition De Auto owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.

Low usage
9,118 mi/yr
Typical
13,399 mi/yr
Average
16,598 mi/yr
Heavy usage
19,649 mi/yr

Mercedes-benz C 300 Sport Edition De Auto MOT Data by Registration Year

Full breakdown of pass rate and mileage for each year. Use this to compare the Mercedes-benz C 300 Sport Edition De Auto year you're looking at.

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
2021 319 85.9% 42,227 58,644 80,492
2020 426 85.4% 39,337 51,510 70,566

How Long Does a Mercedes-benz C 300 Sport Edition De Auto Last?

Based on 230 Mercedes-benz C 300 Sport Edition De Auto vehicles on UK roads.

Average
4.0 years
Median
4.0 years

Mercedes-benz C 300 Sport Edition De Auto Mileage Distribution

Total mileage recorded across all Mercedes-benz C 300 Sport Edition De Auto MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
55,692 mi
75th Percentile
74,828 mi
95th Percentile
110,443 mi
Max Recorded
290,636 mi

Best Year to Buy a Used Mercedes-benz C 300 Sport Edition De Auto

Based on MOT pass rates across all registration years with sufficient test data.

Best year
2021

85.9% MOT pass rate from 319 tests

Year to avoid
2020

85.4% MOT pass rate from 426 tests

The best year to buy a used Mercedes-benz C 300 Sport Edition De Auto is 2021, which has the highest MOT pass rate at 85.9% across 319 tests. The 2020 model year has the lowest pass rate at 85.4% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the Mercedes-benz C 300 Sport Edition De Auto Compare?

MOT pass rates compared to similar models. Click any model for the full breakdown.

Model Pass Rate Tests Typical Mileage Lifespan
Mercedes-benz C 300 Sport Edition De Auto THIS CAR 85.7% 797 55,692 mi — yrs
Mercedes-benz C 77.6% 8,031,355 77,082 mi 32 yrs
Mercedes-benz E 79.4% 4,722,746 83,960 mi 33 yrs
Mercedes-benz A-class 77.6% 4,204,702 57,023 mi 28 yrs
Suzuki Swift SZ4 90.4% 1,089 54,212 mi — yrs

Compared to the Mercedes-benz C (77.6% pass rate) and the Mercedes-benz E (79.4% pass rate), the Mercedes-benz C 300 Sport Edition De Auto outperforms both on MOT reliability.

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Should you buy a used Mercedes-benz C 300 Sport Edition De Auto?

The Mercedes-benz C 300 Sport Edition De Auto has an overall MOT pass rate of 85.7% across 797 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.

On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Mercedes-benz C 300 Sport Edition De Auto with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.

A typical Mercedes-benz C 300 Sport Edition De Auto owner drives around 13,399 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.

Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.

Mercedes-benz C 300 Sport Edition De Auto — Frequently Asked Questions

Is the Mercedes-benz C 300 Sport Edition De Auto reliable?
Based on 797 MOT tests, the Mercedes-benz C 300 Sport Edition De Auto has a 85.7% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Mercedes-benz C 300 Sport Edition De Auto?
The most common failure point is general wear and tear.
How many miles does a Mercedes-benz C 300 Sport Edition De Auto do per year?
The typical Mercedes-benz C 300 Sport Edition De Auto does around 13,399 miles per year. Anything significantly above or below this is worth investigating.
How long does a Mercedes-benz C 300 Sport Edition De Auto last?
Lifespan data is not yet available for this model.
Should I get a vehicle check before buying a Mercedes-benz C 300 Sport Edition De Auto?
Yes. An MOT pass rate tells you about the model in general, but a vehicle history check reveals the specific car's finance, stolen, write-off and mileage history — things the seller may not disclose.
What is the best year to buy a Mercedes-benz C 300 Sport Edition De Auto?
Based on MOT pass rates, the best year to buy a used Mercedes-benz C 300 Sport Edition De Auto is 2021 with a 85.9% pass rate across 319 tests.