If part of a tyre-size code is unreadable, keep the uncertainty explicit. Snow-sock compatibility should not depend on a guessed aspect ratio, a cropped photograph or the size most often associated with your car online.
Improve the original record
In a safe stationary setting, take another image with better light and a complete view of the marking. Review focus and glare before leaving the vehicle. If practical, another tyre on the same axle may provide a clearer reference, but confirm that the fitted setup is consistent.
Use documents as supporting evidence
The handbook or vehicle records may list approved sizes rather than a single current size. A workshop invoice can provide another clue, but it should agree with the actual tyres. A discrepancy is a reason to investigate, not permission to choose whichever record is convenient.
Ask for an exact resolution
Send the best photograph and explain which digit is unclear. Keep the original image available. Once the full code is confirmed, repeat the compatibility check for the precise snow-sock series.
- Do not substitute a popular size.
- Do not erase an uncertain digit from the enquiry.
- Do not order until the complete code is resolved.
Clear information is cheaper to obtain before a trip than a wrong item is to resolve afterwards. Stop the sizing process at the uncertain character and finish that check first.
