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Home For Mercedes Benz W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
W221-W222 Interior Upgrade Kit
Revamp your W221/W222 with our bespoke kit! Features quilted premium leather seats, custom metal/wood trims, and tech upgrades (USB, wireless charging). Precision-fit for these chassis, blending classic S-Class luxury with modern comfort. Elevate your ride—seamless style, timeless refinement.
  • Interior Kits

  • Leather

  • Jiangsu, China

  • Relyauto

  • Customizable

  • Welcomed OEM

  • Plywood Case Packing

  • Havenot Moq

  • Customized Logo

  • W221-W222

  • Leather/Artificial Leather

  • Three Point

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Four MAJOR ADVANTAGES

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Custom Fit for Specific Vehicle

Precisely custom-designed for W221-W222. Developed according to original car data, fully matches the interior structure, holes and mounting positions of the vehicle.

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Mold Development

We support independent mold development for vehicle interior parts. Molds are built based on original vehicle scan data. Stable product dimensions, uniform surface texture, capable of mass production. We can develop new molds for new models or custom-shaped interior components as requested.


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Plug & Play

Original car wiring reserved. Plug-and-play installation without cutting the vehicle’s main wiring harness. Less installation time and avoid damage to original vehicle circuits.

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Custom Solution

Support personalized customization for interior sets. Optional seat styles, ceiling colors, ambient light modes and screen configurations. We can adjust layouts and materials to meet different customer budgets and styling demands.

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Functional Features

 Premium genuine leather seats are equipped with freely adjustable multi-angle armrests, providing soft and ergonomic body support, effectively relieving body pressure and bringing long-distance riding comfort.


 Custom starry sky ceiling is matched with full-car multi-color synchronous ambient lighting, with adjustable brightness and light modes, creating a high-end and luxurious private business cockpit atmosphere.


 High-definition rear exclusive entertainment screens are professionally installed in the rear cabin, supporting multiple entertainment functions, perfectly solving passengers’ travel boredom and enriching in-car leisure experience.


 Adopts integrated integrated interior design concept, with unified and coordinated whole-vehicle color matching and styling, avoiding messy modification traces, and presenting a high-grade and integrated original car effect.


 Optimized humanized spatial layout and reasonable interior structure planning greatly upgrade the rear riding space and comfort, comprehensively improving the overall riding experience of drivers and passengers.

One-stop Refitting Service


All-in-one interior kit, one-stop solution for refitting shops. No destructive modification, retains original vehicle safety performance. Significantly lift interior luxury and commercial value of W221-W222. Suitable for business reception, VIP transfer and family long-distance travel. Simple installation, short construction period and stable finished effect. Flexible custom solution available to realize exclusive cabin design. In-house mold development capability to support new project customization.

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Factory Showcase & Client Communication


RELYAUTO welcomes global partners for on‑site and virtual factory tours. Our modern facility houses full‑scale workshops, advanced equipment and rigorous quality‑control workflows, demonstrating our full capacity for custom automotive interior manufacturing.We value thorough client communication. Our professional team maintains efficient dialogue across consultation, solution planning, technical confirmation and after‑sales support. We respond to market and custom requirements, working closely with worldwide distributors, dealers and installers for long‑term win‑win cooperation.

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Client Testimonials & Feedback

Trusted by global partners, we gain consistent positive feedback from distributors, installers and end‑users, who approve our dependable quality, custom solutions, on‑time delivery and responsive technical support for auto interior conversion projects.Feedback spans custom cabin partitions, upgrade kits and full‑vehicle refits. Valuable input from overseas partners helps us refine craftsmanship, enhance products and optimize services. We cherish every client comment to drive continuous improvement, aiming to exceed expectations and foster stable long‑term partnerships.

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FAQ

  • Q: How to deal with the incompatibility of modified products with vehicles after installation?
    A: 
    3D simulation test before sales, provide "adaptation confirmation form" during installation, and free replacement or return within 72 hours due to product defects.
  • Q: What to do if the accessories are damaged during the warranty period and the manufacturer refuses to replace them free of charge?
    A: 
    Clear warranty policy, free replacement within 48 hours after review.
  • Q: After-sales technical support is limited to weekdays. What if emergency situations cannot be handled?
    A: 
    Provide 7×24 hours emergency hotline, respond and arrange for handling of failures that affect safety within 4 hours.
  • Q: What to do if after-sales response is slow and departments shirk responsibility?
    A: 
    Set up a dedicated after-sales department to unify the needs and formulate the standard of "2-hour first response, 24-hour classification, and 72-hour solution".
  • Q: How to deal with insufficient technical personnel and low maintenance efficiency?
    A: 
    Engineers need to pass the assessment and receive regular training. For complex problems, the "technical expert support mechanism" will be launched to ensure a 24-hour solution.
  • Q: How to solve the problem of opaque maintenance costs and customers refusing to pay?
    A: 
    Provide a "price list" before maintenance to clarify the costs and support official website query records.
  • Q: What to do if the product has been repaired many times but still not resolved?
    A: 
    Implement "maintenance quality tracking", and the technical supervisor will intervene if the repair exceeds two times, and start the "customer compensation process".



Keep in Touch With Us

Provide comprehensive technical installation support and professional after-sales service to ensure a pleasant customer experience.

Mob:+86-15851635891
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