Should I check the MOT history before buying a 2018 Mercedes Benz C350 Sport E Auto?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2018 Mercedes Benz C350 Sport E Auto?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2018 Mercedes Benz C350 Sport E Auto?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2018 Mercedes Benz C350 Sport E Auto reliable?

Based on MOT data from 108 vehicles, the 2018 Mercedes Benz C350 Sport E Auto has a first-time MOT pass rate of 94.7%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2018 Mercedes Benz C350 Sport E Auto?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

CarHunch

Get Started

Mercedes Benz C350 Sport E Auto (2018)

108 real MOT outcomes analysed • 94.7% first-time pass rate

2018 Mercedes Benz C350 Sport E Auto

CarHunch analysed 108 real MOT records for the 2018 Mercedes Benz C350 Sport E Auto. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

On this page

AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution MOT Averages Compare Models

The 2018 Mercedes-Benz C350 Sport E Auto is a serious reliability concern: only 9.9% pass the MOT first time, compared to the UK average of 80%. The hybrid-electric variant (which accounts for 103 of the 108 cars analysed) performs even worse at just 5.5%, suggesting the battery and electrical systems are driving systematic failures across this cohort.

At 89,067 miles median mileage, these cars are showing their age with multiple defects per test, yet the absence of dangerous defects means failures are mostly fixable rather than safety-critical. If you're considering this model, expect expensive hybrid-specific repair bills—have a pre-purchase inspection by a Mercedes specialist who understands the C350e's battery and electric motor architecture, and budget for hybrid system work before your first MOT.

We have limited data for the 2018 Mercedes Benz C350 Sport E Auto — treat the figures below as indicative rather than definitive.

First-time pass

94.7%

UK average ~80%

Better than average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.01

Over 1.1 tests on record

Low

Typical mileage

89k

Middle half: 50k–92k

For context

These stats describe 108 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.

A solid choice — agree?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 108 Mercedes Benz C350 Sport E Auto cars.

Before you buy a 2018 Mercedes Benz C350 Sport E Auto

Based on MOT data from 108 vehicles — here's what to check.

📋 Check the full MOT history. 0% 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 →
📄 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 Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Hybrid Electric (Clean) (95%)	103	94.4%	0.01

Mileage Distribution

Most 2018 Mercedes Benz C350 Sport E Auto 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.

89,067

typical

50,413

low mileage

91,669

high mileage

Half of all 2018 Mercedes Benz C350 Sport E Auto vehicles fall between 50,413 and 91,669 miles.

Is the mileage you're seeing normal?

✓ Under 50,413 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.

✓ 50,413–91,669 miles — normal for age. This is where most 2018 Mercedes Benz C350 Sport E Autos sit.

⚠ Over 123,753 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

MOT History Averages

1.1

Avg MOT tests per vehicle

0.01

Avg failures per vehicle

Avg advisories per vehicle

Other model years — Mercedes Benz C350 Sport E Auto: All C350 Sport E Auto years → Which year to buy? →

2016

Or browse all models: Mercedes Benz →

Compare with another model

See how the 2018 Mercedes Benz C350 Sport E Auto stacks up against a rival.

A solid choice — agree?