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Deep, wide and as hard as possible are popular changes that Tuning measures in the area of the chassis and on the subject of new wheel/tire combinations are often the goals. But caution is advised here, because changes such as various measures for lowering and combinations of rims and tires that deviate from the standard condition can often occur affect each other negatively. Keyword: Multiple changes! Anyone who carries out such work on their vehicle or has it carried out must register the vehicle with one of the monitoring organizations (TÜV, Dekra, GTÜ, KÜS etc.) then have it checked. There, for example, it is determined whether there is still enough space between the new wheel set and the fixed and also the flexible vehicle parts. When making changes to the vehicle, there are a few things to consider!
Just changed tyres/wheels?
If wheels are installed, those from the series condition differ, then it must be checked whether it is for this one general operating permit there or if at least one Teilegutachten present. The vehicle owner can then use these documents to determine whether there are any requirements that must be observed when installing the components. Should it be a Teilegutachten must be carried out and confirmed by a monitoring organization without delay modification acceptance be prompted. Failure to do so may invalidate the vehicle's type approval verlieren. If only Bikes with a valid ABE for the desired vehicle are to be mounted, the vehicle must not be presented to a monitoring organization. But the ABE is with every trip to carry with you. She also has to go through controls upon demand be shown.
The vehicle is also lowered!
For changes to the chassis, such as those that deviate from the standard condition Spring or a lowering by another Suspension in combination with wide wheels these must be removed. There is a risk that the wheels and body parts may come too close. This can lead to dangerous situations – for example when the wheels grind – and in the worst case even lead to accidents. However, an ABE for the new components may be sufficient under certain circumstances - as with the mere wheel/tire combination. This is the case, for example, when only springs for lowering or a non-height-adjustable undercarriage (thread or aviation work) were installed and you at the same time continue with the standard wheels moves. In all cases, read the conditions printed in the document carefully. They are decisively. If no documents are available, we generally advise against installing the wheels and chassis.
Where can you find the editions?
Im VdTÜV bulletin 751 find the guidelines required for the acceptances. It specifies which test steps are required for acceptance. These are about specifications for Minimum ground clearance and more. After installing a combination of new wheels with a different chassis, i.e. components that deviate from the standard condition, a entanglement test necessary. The maximum loads during normal driving are statically simulated here. The entire vehicle weight is transferred to just two wheels via the diagonal interlocking. These then spring in as much as possible. This is to prevent damage to the tires due to insufficient clearance.
Changes "after" acceptance!
Unfortunately, various safety devices are also removed from the air suspension systems. The vehicle literally lies on the road when it is stationary for show purposes. This looks good, but can lead to serious accidents. Should he Air pressure for whatever reason suddenly fall off, then the tires can be destroyed in a flash. The body could drag on the road. The vehicle can become unmanageable and this can lead to a traffic hazard and accidents. The registered coilover kit will also be gladly accepted after acceptance turned even deeper. Even then, damage to the tires is often the result. Such subsequent changes inevitably let the operating permit expire with all the consequences.
And finally ...
- If changes properly abgenom financing were and if the driver has the appropriate documents carries, he has nothing to fear from controls. However, anyone who fails to do so can be penalized with a fine of up to four digits. The costs result from various expert costs, the re-issuance of the operating license by the registration office, various custody fees and the fine procedure.
Of course, that wasn't the end of it.
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