Is the Citroen C4 ULEZ Compliant?
Based on 157,134 MOT tests, around 40% of Citroen C4s still on the road are likely to meet London's ULEZ standards, and about 32% are likely to be charged. For the remaining 28%, it depends on the exact Euro standard or month of registration.
The fuel mix matters: tested cars were 80% diesel, 20% petrol. Diesel C4s are generally compliant from 2016, while diesel cars from 2013 or earlier are likely to be charged. Every petrol C4 in the data (2005 onwards) is likely to be compliant.
- Likely compliant
- 40%
- Likely charged
- 32%
- Depends on the car
- 28%
- MOT tests analysed
- 157,134
Check a specific C4
Year and fuel type are a guide. Enter the registration to check that car's own record.
C4 ULEZ compliance by year and fuel
Estimated from the year of first registration. Numbers show how many C4s of each type were MOT tested, as a guide to how common they are.
| First registered | Diesel | Petrol |
|---|---|---|
| 2021 | Likely compliant48 tested | Likely compliant158 tested |
| 2020 | Likely compliant996 tested | Likely compliant793 tested |
| 2019 | Likely compliant2,281 tested | Likely compliant2,962 tested |
| 2018 | Likely compliant4,814 tested | Likely compliant1,209 tested |
| 2017 | Likely compliant7,355 tested | Likely compliant755 tested |
| 2016 | Likely compliant16,639 tested | Likely compliant4,636 tested |
| 2015 | Check exact car23,389 tested | Likely compliant5,155 tested |
| 2014 | Check exact car20,187 tested | Likely compliant1,203 tested |
| 2013 | Likely charged11,864 tested | Likely compliant925 tested |
| 2012 | Likely charged7,898 tested | Likely compliant1,076 tested |
| 2011 | Likely charged6,894 tested | Likely compliant936 tested |
| 2010 | Likely charged6,516 tested | Likely compliant664 tested |
| 2009 | Likely charged5,168 tested | Likely compliant1,407 tested |
| 2008 | Likely charged5,981 tested | Likely compliant3,642 tested |
| 2007 | Likely charged4,065 tested | Likely compliant3,614 tested |
| 2006 | Likely charged843 tested | Likely compliant1,683 tested |
| 2005 | Likely charged412 tested | Check Euro standard897 tested |
How ULEZ rules apply to the C4
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).
- Diesel (80% of C4s tested): likely compliant from 2016; 2013 and earlier are likely to be charged.
- Petrol (20% of C4s tested): every year in our data is likely to comply.
C4s from 2014 and 2015 sit on the boundary (28% of those tested): some were built to the required standard before it became compulsory. The Euro standard is sometimes on the V5C logbook, or Citroen can confirm it. Our ULEZ calculator can help.
Thinking of buying one? Check how C4s fare at the MOT too: see the Citroen C4 MOT failure rate.
Buying a used Citroen C4 for London: what the MOT data shows
The Citroen C4s in this data were first registered between 2005 and 2021. 2015 was the most common year, with 28,545 tests (18% of the total), and half were registered in 2014 or later.
C4s from likely-compliant years passed their MOT first time 67% of the time, at an average of 65,019 miles. Older ones likely to be charged passed 53% of the time with 94,540 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 C4s likely to comply are from 2016. 16,639 of them were tested; 2016 cars passed first time 69% of the time and averaged 62,023 miles. Check the Euro standard on the V5C before you buy one from around then.
On a budget, the oldest petrol C4s likely to comply are from 2006. 1,683 of them were tested; 2006 cars passed first time 50% of the time and averaged 94,506 miles. Check the Euro standard on the V5C before you buy one from around then.
Whichever year you choose, check the C4's weak spots. The most common MOT failures were lights and electrics: "not working" (7.6% of tests); body and structure: "constant velocity boot split or insecure, no longer prevents the ingress of dirt" (5.7%); suspension: "ball joint excessively worn" (3.8%). The most frequent advisory was "tread depth below requirements of 1.6mm", on 20.5% of tests.
Overall, 62% of C4s passed first time, well below the 71% average for all cars, and they had covered 76,734 miles on average, more than the 73,145-mile average.
ULEZ compliance for other models
Other Citroen models
About this data
Based on 157,134 first MOT tests of the Citroen C4 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 157,134 MOT tests say about the Citroen C4 and London's ULEZ.
Is the Citroen C4 ULEZ compliant?
In our data about 40% of C4s on the road are likely compliant and 32% 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 C4 years are ULEZ compliant?
Petrol C4s first registered from 2006 are likely compliant. Some earlier cars meet Euro 4 too, so check the exact vehicle.
Is a diesel C4 ULEZ compliant?
Only if it meets Euro 6, which generally means first registered from September 2015. Diesel C4s from 2013 or earlier are likely to be charged.
How can I check if a specific C4 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 · 6 min readPre-MOT checklist: 20 things to check yourself before the testTwenty quick checks, grouped by area, that you can do on your driveway in under half an hour. No tools beyond a coin and a helper needed for most.Read the guide
- Buying a used car · 5 min readUsed car buying checklist: 25 checks before you payA step-by-step checklist for buying a used car, from the checks you can do at home to what to look at on the day and the paperwork you need.Read the guide
Is your C4 ULEZ compliant?
Enter the registration for a check based on that car's own DVLA record.