Description
KW Suspensions DTC Approval Gewindefahrwerk Höherlegung, Tieferlegung, Fahrwerksänderung
1. Product Description
Brand: KW
Product Type: Adjustable coilover systems, short springs, suspension kits
Application: Vehicle height adjustment (raising or lowering)
Description: KW suspension products are designed to enhance vehicle performance and handling by allowing precise adjustments in ride height. These modifications must comply with Swiss regulations to ensure road safety and vehicle performance.
2. Explanation of Homologation : KW Suspensions DTC Approval Gewindefahrwerk Höherlegung, Tieferlegung, Fahrwerksänderung
Declaration of Conformity (Eignungs-Erklärung):
The Declaration of Conformity is a formal document issued to confirm that modifications to a vehicle’s suspension (such as short springs or adjustable coilover systems) adhere to the technical and safety standards set forth by Swiss regulations. This document is based on the guidelines established by the Vehicle Equipment Ordinance (OEV) and the Road Traffic Act (LCR), ensuring that the modifications do not adversely affect vehicle safety or performance.
- Technical Basis:
The Declaration is grounded in the technical requirements stipulated by the OEV, which mandates that all vehicle equipment must be tested and approved for safety and performance standards before being used on public roads. It aligns with the LCR, which requires that any modifications to a vehicle must meet strict safety criteria to prevent any potential risks.
- Technical Basis:
DTC Homologation (DTC Prüfbericht)
DTC Report:
The DTC report is a comprehensive technical assessment required for suspension modifications that lower a vehicle by more than 40 mm. This report is issued following an extensive technical evaluation conducted by accredited bodies, confirming that the modifications meet the rigorous safety standards established by the Swiss Department of Transport (DTC). The DTC report adheres to the regulations set forth in the Vehicle Homologation Ordinance (OHTV), ensuring that the modified suspension meets both safety and performance criteria.
- Technical Basis:
The DTC report ensures compliance with the OHTV, which outlines the conditions for homologating significant modifications. The evaluation covers aspects such as structural integrity, impact on vehicle dynamics, and overall safety. The report is crucial for verifying that the suspension system maintains the required performance levels and does not compromise vehicle safety.
- Technical Basis:
3. Swiss Legal Regulations
Legal References
- Road Traffic Act (LCR) – Article 17a:
This article stipulates that any modifications to vehicles must comply with established technical safety standards. Suspension modifications must receive approval from relevant authorities or accredited organizations to ensure they do not compromise road safety.- Text: “Vehicles must be maintained in a condition that meets road safety requirements. Technical modifications, including suspension changes, must be approved by a qualified expert to ensure safety.”
- Vehicle Equipment Ordinance (OEV) – Article 16:
Article 16 requires that all modified vehicle equipment must be homologated to meet safety standards. Suspension modifications must comply with current technical standards, ensuring that all components are safe for use on public roads.- Text: “Modifications to vehicle equipment, including suspensions, must conform to technical standards and obtain approval to ensure safety and regulatory compliance.”
- Vehicle Homologation Ordinance (OHTV) – Article 5:
This article outlines the conditions for obtaining homologation for major modifications, including suspension changes. It specifies that all modifications must undergo technical inspection and receive homologation to ensure road safety and compliance with Swiss regulations.- Text: “Any significant modification to a vehicle’s technical characteristics, such as suspension changes, must undergo a technical inspection and obtain homologation to ensure compliance with road safety standards.”
Technical Standards and Safety
- Declaration of Conformity for Lowering up to 40 mm:
The Declaration of Conformity is required for modifications that result in lowering the vehicle by up to 40 mm. This declaration confirms that the modifications comply with the LCR and OEV requirements, ensuring that the suspension components are safe and do not compromise the vehicle’s safety or handling.- Technical Basis:
The Declaration confirms that the modification meets the OEV’s technical requirements for safety and performance. It ensures that lowering the vehicle up to 40 mm does not adversely affect the vehicle’s stability, handling, or safety features.
- Technical Basis:
- DTC Report for Lowering Greater than 40 mm:
For modifications resulting in a lowering greater than 40 mm, a DTC report is required. This report certifies that the modifications meet the DTC’s stringent requirements, as per the OHTV, ensuring the safety and performance of the modified suspension.- Technical Basis:
The DTC report covers a detailed evaluation of the suspension system, including its effect on vehicle dynamics, handling, and safety. It ensures that the modifications maintain the vehicle’s integrity and performance standards despite significant lowering.
- Technical Basis:
4. Specific Requirements: KW Suspensions DTC Approval Gewindefahrwerk Höherlegung, Tieferlegung, Fahrwerksänderung
Special Vehicles
- Definition:
Special vehicles include those adapted for specific purposes, such as motorsports, utility vehicles modified for heavy loads, or vehicles with extensive modifications beyond standard configurations. - Homologation and Inspection:
Special vehicles must undergo a detailed technical inspection to ensure that suspension modifications adhere to specific safety standards. Additional homologation and inspection by specialized agencies may be required to validate that these modifications do not compromise safety.- Technical Basis:
The LCR and OEV impose strict standards on special vehicles to ensure that modifications do not affect road safety. Special vehicles must be validated to confirm compliance with relevant technical and safety requirements, which may involve additional testing and certification.
- Technical Basis:
Imported Vehicles with Type Approval Number X
- Definition:
Imported vehicles with a Type Approval Number X indicate that they have received homologation from another country or have a special configuration not originally intended for the Swiss market. - Validation Procedures:
- Additional Technical Validation: Imported vehicles with a Type Approval Number X must receive additional validation to ensure that suspension modifications comply with Swiss regulations.
- Technical Inspection: A comprehensive technical inspection is required to verify that the modifications align with Swiss road safety standards.
- Supplementary Documentation: Original homologation documents must be translated into one of Switzerland’s official languages (French, German, or Italian) and submitted for verification by the relevant Swiss authorities.
- Technical Basis:
The OHTV and OEV outline additional requirements for imported vehicles to ensure that modifications meet Swiss safety standards. The validation process involves reviewing original homologation documents and conducting technical inspections to confirm compliance with local regulations
Legal CH and Regulatory Framework: KW Suspension DTC Approval Gewindefahrwerk Höherlegung, Tieferlegung, Fahrwerksänderung
- Swiss Legislation and Applicable Standards:
- Road Vehicles Ordinance (OVR): As per Article 42 of the Federal Roads Act (LRN), the OVR outlines the technical requirements for vehicle safety, mandating that ABS components meet specified criteria to ensure safety and performance.
- Road Traffic Act (LCR): Article 13 of the LCR requires that all vehicles and their components adhere to safety standards and directives issued by the Federal Roads Office (OFROU) and other relevant authorities. This includes compliance with the technical norms for vehicle construction and component safety.
- Ordinance on Technical Requirements for Vehicles (OETV): This ordinance sets out specific technical requirements for automotive parts, ensuring alignment with national and international safety standards and environmental regulations. The OETV mandates that ABS components undergo rigorous testing to confirm compliance with these standards.
- Federal Court Rulings: Swiss Federal Court decisions play a crucial role in interpreting and enforcing vehicle safety standards and part certifications. Relevant case law is considered to ensure legal and technical compliance with established precedents and regulatory requirements.
- Recognized Certification Centers:
- DTC (DTC Testing Center): Accredited by the Federal Roads Office (OFROU) for conducting comprehensive performance and safety testing of automotive components, including assessments of impact resistance, thermal compliance, and structural integrity.
- FAKT GmbH (Forschungsgesellschaft für angewandte Kunststoffe mbH): Specializing in performance and durability testing of polymer-based automotive components, FAKT GmbH is recognized for its expertise in mechanical evaluations, environmental simulations, and material characterization. The organization conducts extensive testing to ensure ABS components meet stringent industry standards.
- ABE (Automotive Engineering Association): Certified by relevant authorities to conduct automotive part certification, ABE performs rigorous testing on component performance, ensuring adherence to technical standards and regulatory requirements.
- TÜV (Technischer Überwachungsverein): A renowned German organization known for its expertise in certification and compliance testing of automotive parts, including polymers and safety components. TÜV performs exhaustive assessments to verify compliance with industry standards and safety regulations.
Expert Assistance : KW Suspensions DTC Approval Gewindefahrwerk Höherlegung, Tieferlegung, Fahrwerksänderung
- Should you require further clarification or have additional inquiries regarding the KW suspension homologation process, we encourage you to consult with our specialists. Please utilize our detailed contact form to submit your questions, and our experts will provide the comprehensive support and guidance necessary to address your concerns.
- It is imperative to include a copy of your vehicle registration document (permis de circulation) with your submission. This document is essential for verifying your vehicle’s compliance with Swiss regulatory standards and ensuring that the homologation process is completed accurately.
- For expert assistance or to initiate your request, please access our contact form or reach out directly to our customer support team. We are dedicated to providing precise and timely information to facilitate your vehicle modification in accordance with Swiss regulations.
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