In-Depth WVTA - Whole Vehicle Type Approval

Discussion in 'Technical Articles' started by Ichiban, Friday 20th Dec, 2013.

  1. Ichiban Founder Staff Team

    England CJ Leeds
    Tyres or tires as some people call it, is a topic of discussion for many car owners some choose tyres based on performance and some on cost. The choice of tyres is not just limited to these two factors with an endless list of manufacturers which a huge array in the choice of rubber compound, varying specification and usage.. selecting the right tyre is quite a challenge. To me they one of the most vital pieces of the vehicle machinery and the one things with connects us to the roads.

    WVTA may come as news to a lot of people but I caught wind of this legislation in early April 2011, but in reality it became law in the UK on the 29th April 2009 but enforcement time frame for each vehicle category from 2009 to 2014.

    So that leads me to another question why has this law not received the public attention why is there not a awareness campaign surely we as motorist do not want to get caught out?

    Well there is good resource of documentation and details regarding this law on the department of transports website.

    To get up to speed on ECWVTA -These are commonly asked questions

    For a Honda owners perspective these are the guidelines

    The Honda Explanation

    1. OEM-tyres are tyres fitted on the production line. These tyres were used during the development of the model and represent the best compromise in terms of performance, comfort and safety. These are the tyres that Honda officially recommends. for the full list of approve tyres please consult you Honda dealer.

    2. In the WVTA (Whole Vehicle Type Approval) is the minimum requirement for tyres for that model. In some cases, there is a small deviation from the OEM-size. It allows customers to choose an alternative tyre more easily, e.g. in case of winter tyres, after-market tyres, etc. It is however illegal to choose tyres below the minimum requirements.

    3. Four different tyre types are available (Only applicable to certain countries) : summer, winter, winter soft compound and studded.

    4. Additionally, tyre sizes sold through Honda Accessories will meet WVTA approval. Also these tyres carry official Honda approval.

    5. For some models, you will see recommended winter tyres. These tyres have been tested by R&D and give the best performance with this vehicle.

    Additional information.

    There is a chart with alternative tyres available to the Honda dealers and can be shown to customers, however these tyres have not been officially approved by Honda. For this particular reason only the Honda dealers are best suited to give best advice to customers who opt to use non-OEM tyres for whatever reason.

    The theory behind this is to give the owner awareness of that non-OEM tyres may result in reduced performance compared to OEM-tyres (for example comfort, fuel economy, noise level, etc.).

    The EU Law and the farce at MOT's

    As indicated in point two in blue it illegal to choose a tyre below the minimum set requirement for a given vehicle. As discussed on this blog this again highlight the utter farce of the EU legislation with the current MOT system.

    The system is place for manufactures to adhere to the law but it another thing when it come to time of an MOT. It nowhere in the 2012 MOT Vosa guide does it take note of this , the nominated tester is not asked to check if the tyres fitted on the vehicle is acceptable as if for DPF to work.

    With the enforcement for each vehicle category ranging between 2009 to 2014 will vosa adapt make changes to the testing to make sure ouer cars are safe? and will we as the end user pay higher for all these checks?

    Time will tell