
Mercedes-Benz A-Class build years & generations
The Mercedes-Benz A-Class spans several build years and named generations (2004-2025). Match a build year to its generation, then see how each group of build years does at its MOT.
Which year is which
Build years & generations, side by side
Find the build years you're looking at and see which generation they are. You'll also see which group of build years the MOT figures come from.
Built 2004
- Generation
- W169
- Figures from
- cars built before 2005
Counted with every car built before 2005, so much older cars can affect the figures.
Built 2005-2008
- Generation
- W169
- Figures from
- cars built 2005-2008
Counted with this generation only.
Built 2009-2011
- Generation
- W169
- Figures from
- cars built 2009-2012
Counted together with W169 and W176 cars built in the same years.
Built 2012
- Generation
- W176
- Figures from
- cars built 2009-2012
Counted together with W169 and W176 cars built in the same years.
Built 2013-2016
- Generation
- W176
- Figures from
- cars built 2013-2016
Counted with this generation only.
Built 2017
- Generation
- W176
- Figures from
- cars built 2017-2020
Counted together with W176 and W177/V177 cars built in the same years.
Built 2018-2020
- Generation
- W177/V177
- Figures from
- cars built 2017-2020
Counted together with W176 and W177/V177 cars built in the same years.
Built 2021-2025
- Generation
- W177/V177
- Figures from
- cars built 2021 onwards
Counted with every car built from 2021.
“Figures from” is the group of build years behind each card's MOT figures. Years where one generation gave way to the next can sit in a wider group until there's enough history to split them.
By build-year group
How each group of build years performs
Each card shows MOT results for one group of Mercedes-Benz A-Class build years. “Age” means the car's age on the day of its MOT, not its build year. “25+” groups every test on cars aged 25 or older.
Built2021 onwards
W177/V177 only
All W177/V177 cars built from 2021. Newer cars join this group until there is enough MOT history to split it.
Fail rate at 4 years old (latest age)
9.7%
UK average for cars this age: about 1 in 8 (12.5%)
Ages with data
3 to 4 years old
MOT tests counted
22,284
Chart shows
Age at the MOT
Not the build year

2021 onwards
W177/V177 only
All W177/V177 cars built from 2021. Newer cars join this group until there is enough MOT history to split it.
Fail rate at 4 years old (latest age)
9.7%
UK average for cars this age: about 1 in 8 (12.5%)
Ages with data
3 to 4 years old
MOT tests counted
22,284
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 4 years old.
Built2017-2020
A mix of W176 and W177/V177
These build years include both W176 and W177/V177 cars, so the figures are less exact than for a single generation.
Fail rate at 7 years old
16.3%
UK average for cars this age: about 1 in 6 (17.1%)
Ages with data
4 to 8 years old
MOT tests counted
188,752
Chart shows
Age at the MOT
Not the build year

2017-2020
A mix of W176 and W177/V177
These build years include both W176 and W177/V177 cars, so the figures are less exact than for a single generation.
Fail rate at 7 years old
16.3%
UK average for cars this age: about 1 in 6 (17.1%)
Ages with data
4 to 8 years old
MOT tests counted
188,752
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 8 years old.
Built2013-2016
W176 only
These build years are all W176, so the figures are almost all from that generation.
Fail rate at 12 years old (latest age)
23.6%
UK average for cars this age: about 1 in 4 (25.9%)
Ages with data
8 to 12 years old
MOT tests counted
130,954
Chart shows
Age at the MOT
Not the build year

2013-2016
W176 only
These build years are all W176, so the figures are almost all from that generation.
Fail rate at 12 years old (latest age)
23.6%
UK average for cars this age: about 1 in 4 (25.9%)
Ages with data
8 to 12 years old
MOT tests counted
130,954
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 11 years old.
Built2009-2012
A mix of W169 and W176
These build years include both W169 and W176 cars, so the figures are less exact than for a single generation.
Fail rate at 16 years old (latest age)
29.4%
UK average for cars this age: about 3 in 10 (30%)
Ages with data
12 to 16 years old
MOT tests counted
30,631
Chart shows
Age at the MOT
Not the build year

2009-2012
A mix of W169 and W176
These build years include both W169 and W176 cars, so the figures are less exact than for a single generation.
Fail rate at 16 years old (latest age)
29.4%
UK average for cars this age: about 3 in 10 (30%)
Ages with data
12 to 16 years old
MOT tests counted
30,631
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 16 years old.
Built2005-2008
W169 only
These build years are all W169, so the figures are almost all from that generation.
Fail rate at 20 years old (latest age)
29.0%
UK average for cars this age: about 3 in 10 (30.3%)
Ages with data
16 to 20 years old
MOT tests counted
23,828
Chart shows
Age at the MOT
Not the build year

2005-2008
W169 only
These build years are all W169, so the figures are almost all from that generation.
Fail rate at 20 years old (latest age)
29.0%
UK average for cars this age: about 3 in 10 (30.3%)
Ages with data
16 to 20 years old
MOT tests counted
23,828
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 19 years old.
BuiltBefore 2005
W169 only
Counts every car built before 2005, so older cars with the same model name can be included as well as the W169.
Fail rate at 25+ years old
34.3%
UK average for cars this age: about 1 in 4 (23%)
Ages with data
20 to 25+ years old
MOT tests counted
4,475
Chart shows
Age at the MOT
Not the build year

Before 2005
W169 only
Counts every car built before 2005, so older cars with the same model name can be included as well as the W169.
Fail rate at 25+ years old
34.3%
UK average for cars this age: about 1 in 4 (23%)
Ages with data
20 to 25+ years old
MOT tests counted
4,475
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 25+ years old.
