Common Mistake: Assuming a Recent Diesel Always Gets Label C
This is one of the most common mistakes when importing a car: assuming that, because it is a diesel with only a few years on the clock, it will automatically get label C. The reality is stricter. The DGT does not go by how new a car looks — it goes by two specific data points, the exact Euro standard and the registration date, and for diesel the cutoff comes later than most people expect.
The mistake, illustrated with a real example
Picture two diesel cars, one registered in January 2015 and another in October the same year, just months apart. Even though both could pass for the same generation, the first one stays on label B and the second qualifies for label C, because the DGT's diesel criterion requires Euro 6 and registration from September 2015 onward. Those few months mark the line between two entirely different categories.
Why diesel has a different cutoff than petrol
For label C, petrol vehicles need Euro 4, 5 or 6 and registration from January 2006 — a wider range of standards. Diesel, on the other hand, only reaches label C if it specifically meets Euro 6, registered from September 2015. A Euro 5 diesel, no matter how modern its design or equipment looks, does not qualify for label C — it stays on label B alongside Euro 4 diesels.
- Diesel Euro 6 registered from September 2015: label C.
- Diesel Euro 4 or 5 registered between 2006 and September 2015: label B, regardless of how few years it has been in use.
- Diesel registered before 2006: no environmental label at all.
How to avoid this mistake when importing
Before buying a diesel abroad, check two figures on the listing's technical sheet: the exact Euro standard (it is not enough to know it 'meets current regulations' in the country of origin) and the exact first registration date. If the seller does not state it clearly, ask for it in writing, or check the vehicle's Certificate of Conformity (CoC), where both figures appear officially.
Why this should affect the price you are willing to pay
A diesel with label B has more limited access to Low Emission Zones and lower resale demand in Spain than an equivalent one with label C. If you are comparing two similar cars in Germany and one meets label C requirements while the other does not, that difference should be reflected in the price you are willing to pay, regardless of how similar their age appears at first glance.
With diesel, a few months' difference in the registration date can cost you an entire environmental category. Don't assume it — check it.
Caralyze checks the exact Euro standard and registration date of every diesel before we import it, so you know for certain which label it will carry in Spain.
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