Transmission oil leaks leaking excessively from transmission on the BMW 118
Transmission oil leaks leaking excessively from transmission on the BMW 118 is recorded on 7,041 tests — 1.4% of all its MOT tests, against 0.7% across every car in the data. That is 2.0× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 0.7% of tests record it — this model is 2.0× that share |
| The 289 models compared | 44 of 289, highest first |
| The model's own record | 499,634 tests · every year of the 118 → |
A share of tests is not a probability for your car: it counts every BMW 118 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 2005, 1.2% of this model's tests recorded it; in 2019, 0.6%. The share has fallen 0.6 points over that time. Worst year 2009 at 1.5%; best 2012 at 0.5%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2005 | 145 | 12,184 | 1.2% |
| 2006 | 275 | 19,582 | 1.4% |
| 2007 | 234 | 24,422 | 1.0% |
| 2008 | 316 | 40,502 | 0.8% |
| 2009 | 413 | 27,535 | 1.5% |
| 2010 | 528 | 73,548 | 0.7% |
| 2011 | 300 | 33,319 | 0.9% |
| 2012 | 203 | 41,752 | 0.5% |
| 2013 | 133 | 19,418 | 0.7% |
| 2014 | 153 | 15,065 | 1.0% |
| 2015 | 932 | 73,020 | 1.3% |
| 2016 | 1,169 | 92,164 | 1.3% |
| 2017 | 1,166 | 97,446 | 1.2% |
| 2018 | 643 | 73,240 | 0.9% |
| 2019 | 409 | 66,600 | 0.6% |
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 £200–£700 fitted. It is a job for a garage, not a driveway. 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
- Transmission oil leaks leaking excessively from transmission: every model, every year → — the item's own page, with the part guide.
- BMW 118 MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every BMW model →