Is the Mercedes-Benz Cla ULEZ Compliant?
Based on 54,501 MOT tests, around 85% of Mercedes-Benz Clas still on the road are likely to meet London's ULEZ standards, and about 2% are likely to be charged. For the remaining 13%, it depends on the exact Euro standard or month of registration.
The fuel mix matters: tested cars were 52% petrol, 46% diesel. Every petrol Cla in the data (2013 onwards) is likely to be compliant. Diesel Clas are generally compliant from 2016, while diesel cars from 2013 or earlier are likely to be charged.
- Likely compliant
- 85%
- Likely charged
- 2%
- Depends on the car
- 13%
- MOT tests analysed
- 54,501
Check a specific Cla
Year and fuel type are a guide. Enter the registration to check that car's own record.
Cla ULEZ compliance by year and fuel
Estimated from the year of first registration. Numbers show how many Clas of each type were MOT tested, as a guide to how common they are.
| First registered | Petrol | Diesel | Hybrid (petrol) |
|---|---|---|---|
| 2021 | Likely compliant287 tested | Likely compliant94 tested | Likely compliant18 tested |
| 2020 | Likely compliant5,237 tested | Likely compliant1,446 tested | Likely compliant896 tested |
| 2019 | Likely compliant7,378 tested | Likely compliant1,044 tested | Likely compliant1 tested |
| 2018 | Likely compliant4,852 tested | Likely compliant3,582 tested | – |
| 2017 | Likely compliant3,187 tested | Likely compliant5,126 tested | – |
| 2016 | Likely compliant2,074 tested | Likely compliant5,725 tested | – |
| 2015 | Likely compliant2,482 tested | Check exact car4,468 tested | – |
| 2014 | Likely compliant1,691 tested | Check exact car2,748 tested | – |
| 2013 | Likely compliant1,064 tested | Likely charged1,091 tested | – |
How ULEZ rules apply to the Cla
Cars that miss the standard pay £12.50 for each day they're driven in the zone. Petrol and petrol-hybrid cars need Euro 4 (most from 2006), while diesels need Euro 6 (most from September 2015).
- Petrol (52% of Clas tested): every year in our data is likely to comply.
- Diesel (46% of Clas tested): likely compliant from 2016; 2013 and earlier are likely to be charged.
- Hybrid (petrol) (2% of Clas tested): every year in our data is likely to comply.
Clas from 2014 and 2015 sit on the boundary (13% of those tested): some were built to the required standard before it became compulsory. The Euro standard is sometimes on the V5C logbook, or Mercedes-Benz can confirm it. Our ULEZ calculator can help.
Thinking of buying one? Check how Clas fare at the MOT too: see the Mercedes-Benz Cla MOT failure rate.
Buying a used Mercedes-Benz Cla for London: what the MOT data shows
The Mercedes-Benz Clas in this data were first registered between 2013 and 2021. 2018 was the most common year, with 8,434 tests (15% of the total), and half were registered in 2017 or later.
Clas from likely-compliant years passed their MOT first time 82% of the time, at an average of 48,899 miles. Older ones likely to be charged passed 71% of the time with 86,172 miles on average, so a compliant car is usually the more reliable buy as well as the cheaper one to drive in London.
On a budget, the oldest diesel Clas likely to comply are from 2016. 5,725 of them were tested; 2016 cars passed first time 79% of the time and averaged 65,753 miles. Check the Euro standard on the V5C before you buy one from around then.
Whichever year you choose, check the Cla's weak spots. The most common MOT failures were tyres: "tread depth below requirements of 1.6mm" (2.5% of tests), "has ply or cords exposed" (2.5%) and "has a cut in excess of the requirements deep enough to reach the ply or cords" (2.2%). The most frequent advisory was "tread depth below requirements of 1.6mm", on 16.8% of tests.
Overall, 81% of Clas passed first time, well above the 71% average for all cars, and they had covered 53,336 miles on average, fewer than the 73,145-mile average.
ULEZ compliance for other models
Other Mercedes-Benz models
About this data
Based on 54,501 first MOT tests of the Mercedes-Benz Cla carried out in 2023.
Source: DVSA anonymised MOT test data (contains public sector information licensed under the Open Government Licence v3.0). First attempts on cars only; “pass rate” means passing first time. Averages cover all 32,735,164 cars tested (71% passed), and years with under 50 tests are hidden.
ULEZ results are estimates from fuel type and year of first registration. Transport for London makes the final decision.
Learn more about how our data works.
Frequently asked questions
What 54,501 MOT tests say about the Mercedes-Benz Cla and London's ULEZ.
Is the Mercedes-Benz Cla ULEZ compliant?
In our data about 85% of Clas on the road are likely compliant and 2% likely to be charged. Petrol and petrol-hybrid cars need Euro 4 (most from 2006), while diesels need Euro 6 (most from September 2015).
Which petrol Cla years are ULEZ compliant?
Petrol Clas first registered from 2013 are likely compliant. Some earlier cars meet Euro 4 too, so check the exact vehicle.
Is a diesel Cla ULEZ compliant?
Only if it meets Euro 6, which generally means first registered from September 2015. Diesel Clas from 2013 or earlier are likely to be charged.
How can I check if a specific Cla is ULEZ compliant?
Enter its registration in our free ULEZ check, which uses the vehicle's DVLA record. Always confirm with TfL before relying on it.
Related guides
- ULEZ · 6 min readULEZ explained: which cars are compliant and what it costsSince August 2023 the ULEZ covers every London borough. Which cars comply, what the daily charge costs if yours doesn't, and what you can do about it.Read the guide
- MOT · 4 min readTyre tread depth and the MOT: the legal limit and how to check6.3% of cars failed their 2023 MOT on tyres. The 1.6mm legal limit, what testers look for beyond tread, and a one-minute check with a 20p coin.Read the guide
- Buying a used car · 7 min readHow to read a car's MOT history before buying a used carThe MOT history is the only part of a used car's story the seller didn't write. A 10-minute method for reading it before you go to see the car.Read the guide
Is your Cla ULEZ compliant?
Enter the registration for a check based on that car's own DVLA record.