Mercedes A CLASS

390,379 on UK roads in 2025+4,354 vs 2024

On the road

390k

390,379 licensed

Change vs 2024

+1.1%

+4,354 cars

New in 2025

13,012

first-time registrations

Electrified

14.1%

hybrid, plug-in & battery

The Mercedes A CLASS is a common sight on UK roads, with 390,379 licensed in 2025 - up 1.1% on 2024. 13,012 were registered new in 2025. The fleet is overwhelmingly diesel (45%), with most in the 1.0-1.6L class. Most date from the 2015-2019 era.

How many are left?

Licensed Mercedes A CLASS cars on the road over time

New registrations

First-time registrations per year

What the typical Mercedes A CLASS looks like

Fuel, engine size and age across every Mercedes A CLASS on the road today.

Fuel mix

Current split

390ktotal

Petrol40.8%
Diesel45.2%
Hybrid9.7%
Plug-in Hybrid4.4%
Other0.0%

Engine size

Cars on the road by engine capacity

Under 1.0L4
1.0-1.6L264k
1.6-2.0L49,638
2.0-3.0L76,735
Over 3.0L5

How old are they?

Share of cars by the year they were first registered

Before 20000%
2000-20041%
2005-20096%
2010-201414%
2015-201948%
2020-202532%

MOT & reliability

2025 MOT data

How a Mercedes A Class holds up at its MOT and how it's driven - from 280,993 tests, tracked across 2022-2025.

First-time pass rate

Average for its class

77.9%

280,993 MOT tests in 2025 · 233,090 first-time

Pass rate over time

2022

82.6%

2023

80.5%

2024

79.1%

2025

77.9%

▼ 4.7 pts since 2022

Pass rate by age

First-time pass rate by the car's age (tested in 2025)

How a Mercedes A Class is driven

tracked across 2022-25

How much it's driven

miles a year, from 243,977 cars tracked across years

7,378miles a year · average use

32.9%

low · <5k

61.3%

avg · 5-15k

5.8%

high · 15k+

Most cover 4,197-9,671 miles a year (median 6,672).

Miles driven by age

Yearly mileage as the car ages

Driven most when newer, easing as it gets older.

Mileage & condition

Typical mileage at test

Odometer when tested (2025)

74,641

38,241middle 50%: 52,187-92,857115,993

Typical odometer rising: 56,369 → 62,583 → 68,699 → 74,641

Holds up by mileage

Pass rate as the odometer climbs

Under 40k

88.3%

40-80k

80.4%

80-120k

72.3%

120k+

69.1%

Petrol vs diesel

First-time pass rate by fuel

Diesel

141,907 tests

77.2%

Petrol

91,144 tests

78.9%

A 2025 Mercedes A Class passes first time 77.9% of the time - above the 77.6% UK average, and easing slightly year on year. The typical one is driven about 7,378 miles a year, and reliability is mostly about miles: 88.3% of low-mileage cars pass versus 69.1% past 120k.

Why a A CLASS fails its MOT

2025 MOT data

Of 51,618 first-time fails, here's what gets flagged most. Most cars fail on more than one item, so shares add up past 100%.

Where a A CLASS fails

Share of failed tests, by area

Suspension37%

Tyres32.5%

Brakes22.7%

Lamps & electrical22.5%

Visibility15.9%

Exhaust & emissions11.7%

Seat belts7.7%

Body & structure7.2%

Top specific defects

Exact items most often recorded as the reason a car failed

A spring or spring component fractured or seriously weakened8,797

A tyre seriously damaged6,886

A suspension joint dust cover missing or no longer prevents the ingress of dirt etc6,336

Tyre tread depth not in accordance with the requirements5,913

Windscreen washers not working or not providing sufficient fluid to clear the windscreen5,441

Engine MIL illuminated indicating a malfunction5,034

A brake lining or pad worn below 1.5mm4,615

A tyre cords visible or damaged3,736

A suspension pin, bush or joint excessively worn3,602

The aim of a headlamp is not within limits laid down in the requirements3,575

35% flagged dangerous·2.2 defects per fail·51,618 fails analysed

Mercedes A CLASS - frequently asked

How many Mercedes A CLASS are left in the UK?

There are 390,379 Mercedes A CLASS cars still licensed on UK roads in 2025, up 1.1% on 2024.

How many new Mercedes A CLASS were registered in 2025?

13,012 brand-new Mercedes A CLASS cars were first registered in 2025.

What fuel does the typical Mercedes A CLASS use?

Most are diesel - about 45% of all Mercedes A CLASS on the road, with the majority in the 1.0-1.6L engine class. In total, 14.1% are electrified (hybrid, plug-in or battery).

How old is the typical Mercedes A CLASS?

Most Mercedes A CLASS cars on the road today date from the 2015-2019 era.

How reliable is the Mercedes A CLASS?

77.9% of Mercedes A CLASS cars pass their MOT first time, compared with a UK average of 77.6% across all cars. The typical tested Mercedes A CLASS has around 70,779 miles on the clock.

Buying a Mercedes A CLASS?

Before you buy a specific Mercedes A CLASS, run its registration through AnalyzeMyCar for MOT history, mileage checks, service history and valuation.

Check a car

What the typical Mercedes A CLASS looks like

Fuel, engine size and age across every Mercedes A CLASS on the road today.

Fuel mix

Current split

390ktotal

Petrol40.8%
Diesel45.2%
Hybrid9.7%
Plug-in Hybrid4.4%
Other0.0%

Engine size

Cars on the road by engine capacity

Under 1.0L4
1.0-1.6L264k
1.6-2.0L49,638
2.0-3.0L76,735
Over 3.0L5

How old are they?

Share of cars by the year they were first registered

Before 20000%
2000-20041%
2005-20096%
2010-201414%
2015-201948%
2020-202532%

MOT & reliability

2025 MOT data

How a Mercedes A Class holds up at its MOT and how it's driven - from 280,993 tests, tracked across 2022-2025.

First-time pass rate

Average for its class

77.9%

280,993 MOT tests in 2025 · 233,090 first-time

Pass rate over time

2022

82.6%

2023

80.5%

2024

79.1%

2025

77.9%

▼ 4.7 pts since 2022

Pass rate by age

First-time pass rate by the car's age (tested in 2025)

How a Mercedes A Class is driven

tracked across 2022-25

How much it's driven

miles a year, from 243,977 cars tracked across years

7,378miles a year · average use

32.9%

low · <5k

61.3%

avg · 5-15k

5.8%

high · 15k+

Most cover 4,197-9,671 miles a year (median 6,672).

Miles driven by age

Yearly mileage as the car ages

Driven most when newer, easing as it gets older.

Mileage & condition

Typical mileage at test

Odometer when tested (2025)

74,641

38,241middle 50%: 52,187-92,857115,993

Typical odometer rising: 56,369 → 62,583 → 68,699 → 74,641

Holds up by mileage

Pass rate as the odometer climbs

Under 40k

88.3%

40-80k

80.4%

80-120k

72.3%

120k+

69.1%

Petrol vs diesel

First-time pass rate by fuel

Diesel

141,907 tests

77.2%

Petrol

91,144 tests

78.9%

Why a A CLASS fails its MOT

2025 MOT data

Of 51,618 first-time fails, here's what gets flagged most. Most cars fail on more than one item, so shares add up past 100%.

Where a A CLASS fails

Share of failed tests, by area

Suspension37%

Tyres32.5%

Brakes22.7%

Lamps & electrical22.5%

Visibility15.9%

Exhaust & emissions11.7%

Seat belts7.7%

Body & structure7.2%

Top specific defects

Exact items most often recorded as the reason a car failed

A spring or spring component fractured or seriously weakened8,797

A tyre seriously damaged6,886

A suspension joint dust cover missing or no longer prevents the ingress of dirt etc6,336

Tyre tread depth not in accordance with the requirements5,913

Windscreen washers not working or not providing sufficient fluid to clear the windscreen5,441

Engine MIL illuminated indicating a malfunction5,034

A brake lining or pad worn below 1.5mm4,615

A tyre cords visible or damaged3,736

A suspension pin, bush or joint excessively worn3,602

The aim of a headlamp is not within limits laid down in the requirements3,575

35% flagged dangerous·2.2 defects per fail·51,618 fails analysed

Mercedes A CLASS - frequently asked

How many Mercedes A CLASS are left in the UK?

There are 390,379 Mercedes A CLASS cars still licensed on UK roads in 2025, up 1.1% on 2024.

How many new Mercedes A CLASS were registered in 2025?

13,012 brand-new Mercedes A CLASS cars were first registered in 2025.

What fuel does the typical Mercedes A CLASS use?

Most are diesel - about 45% of all Mercedes A CLASS on the road, with the majority in the 1.0-1.6L engine class. In total, 14.1% are electrified (hybrid, plug-in or battery).

How old is the typical Mercedes A CLASS?

Most Mercedes A CLASS cars on the road today date from the 2015-2019 era.

How reliable is the Mercedes A CLASS?

77.9% of Mercedes A CLASS cars pass their MOT first time, compared with a UK average of 77.6% across all cars. The typical tested Mercedes A CLASS has around 70,779 miles on the clock.

Buying a Mercedes A CLASS?

Before you buy a specific Mercedes A CLASS, run its registration through AnalyzeMyCar for MOT history, mileage checks, service history and valuation.

Check a car