SRS warning lamp indicates a fault on the Mercedes-Benz A-Class
SRS warning lamp indicates a fault on the Mercedes-Benz A-Class is recorded on 12,340 tests — 1.5% of all its MOT tests, against 0.4% across every car in the data. That is 3.8× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 0.4% of tests record it — this model is 3.8× that share |
| The 240 models compared | 16 of 240, highest first |
| The model's own record | 850,750 tests · every year of the A-Class → |
A share of tests is not a probability for your car: it counts every Mercedes-Benz A-Class tested, whatever its mileage, service history and use. The like-for-like comparison on the model page is the fairer number.
Year by year
In 2001, 0.5% of this model's tests recorded it; in 2019, 0.8%. The share has risen 0.3 points over that time. Worst year 2013 at 1.0%; best 2010 at 0.3%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2001 | 37 | 6,906 | 0.5% |
| 2002 | 43 | 10,719 | 0.4% |
| 2003 | 76 | 14,847 | 0.5% |
| 2004 | 107 | 14,259 | 0.8% |
| 2005 | 194 | 33,453 | 0.6% |
| 2006 | 324 | 50,688 | 0.6% |
| 2007 | 316 | 69,384 | 0.5% |
| 2008 | 329 | 77,484 | 0.4% |
| 2009 | 237 | 79,671 | 0.3% |
| 2010 | 184 | 69,885 | 0.3% |
| 2012 | 150 | 57,534 | 0.3% |
| 2013 | 1,553 | 160,632 | 1.0% |
| 2014 | 2,324 | 251,607 | 0.9% |
| 2015 | 2,205 | 285,990 | 0.8% |
| 2016 | 1,250 | 399,477 | 0.3% |
| 2018 | 1,826 | 402,429 | 0.5% |
| 2019 | 712 | 84,360 | 0.8% |
Years with fewer than 0.2% of tests recording the item are left out: a year with two failures in 400 tests is noise, and this table is not here to make noise look like a trend.
What it costs
A typical UK repair for this item is £3–£12 fitted. It is a job a careful owner can do at home. What the part is, and what to buy →
Prices are typical UK supply-and-fitting estimates, not quotes. What happens if it fails covers the retest rules.
Where this sits
- SRS warning lamp indicates a fault: every model, every year → — the item's own page, with the part guide.
- Mercedes-Benz A-Class MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Mercedes-Benz model →