Mercedes Sprinter Side Sills: Carlex, OEM-Style and Aftermarket Options

Information: Mercedes Sprinter Side Sills: Carlex, OEM-Style and Aftermarket Options

Sprinter side sills are body panels fitted beneath the door apertures to lower the visual centre of gravity, protect the chassis rails from road debris, and give the van a purposeful, lowered stance. We at DL Auto Design manufacture and supply aftermarket side skirt sets for the W906, W907 and W910 generations, covering every wheelbase from L1 to L4, shipped to customers across Europe and worldwide in 2025.

What Are Sprinter Side Sills and Why Do They Matter?

Side sills - also called side skirts or rocker panels - are the trim pieces that run along the lower body between the front and rear wheel arches. On a tall van like the Sprinter they serve three practical functions: aerodynamic management of airflow under the vehicle, stone-chip protection for the chassis step and fuel lines, and visual proportion that makes the high roof look intentional rather than awkward.

A correctly fitted side skirt set also signals professional conversion work to end clients. Luxury passenger transport operators, campervan builders and executive shuttle companies all use sills to unify the exterior and justify premium pricing for their finished products.

W907 Side Sill Options: ABS Plastic vs Fiberglass

The current W907 platform, sold in Europe from 2018 onward and in North America as the VS30, uses a longer and taller door sill line than the older W906. Any sill set must be designed specifically for the W907 body shell; a W906 part will not align with the door seals or wheel arch cutouts.

We produce Mercedes Sprinter Tuning Side Skirts for the W907 in ABS plastic, updated for the 2020 model year body line. ABS plastic is the preferred choice for commercial fleets and daily-use vans because it flexes on minor impacts rather than cracking, resists UV fading, and arrives paint-ready so your bodyshop can apply a matched factory colour or a livery wrap with no additional preparation steps.

Fiberglass-reinforced polymer (FRP) versions are available for customers building show vehicles, competition entries or bespoke luxury conversions where a sharper edge definition and slightly lighter panel weight are priorities. FRP holds tighter radii than ABS, which allows more aggressive undercut profiles.

Wheelbase Fitment: L1, L2, L3 and L4

Sprinter side sills must match wheelbase length, not just the generation. A standard L2 panel will leave a visible gap on an L3 or L4 van. When ordering from DL Auto Design, confirm your wheelbase designation - L1 (3250 mm), L2 (3665 mm), L3 (4325 mm) or L4 (4875 mm) - and we will supply the correct panel length. Extended sill panels for L3 and L4 are produced to order.

Carlex Side Sills vs DL Auto Design: Key Differences

Carlex Design is well known for interior conversions, headliner work and leather seat packages. Their product line does not include structural exterior body panels. When buyers search for Carlex side sills they are often looking for a premium-look exterior upgrade to complement an interior conversion - which is exactly what our ABS and FRP sill sets provide as a matching exterior layer.

OEM-Style vs Sport-Profile Side Skirts

OEM-style sills follow the factory step height and blend into the lower door panel with a smooth, factory-flush appearance. They are popular with operators who want a clean look without announcing an aftermarket modification to fleet managers or clients.

Sport-profile sills extend lower and feature sharper horizontal lines, sometimes with a ventilation slot or diffuser-style undercut. They pair naturally with a full body kit that includes a front bumper and rear bumper extension. For buyers planning a full exterior transformation, our Mercedes Sprinter W907 and W910 Full Body Kit with Diamond Front Grille combines the front bumper, grille and rear elements in one coordinated order, making it straightforward to specify matching side sills in the same production run.

W906 Side Skirts: Fitment for 2006-2018 Vans

The W906, produced from 2006 to 2018 and sometimes called the NCV3 in North America, has a different lower door profile and shorter panel geometry than the W907. We produce dedicated side skirts for this generation in both ABS and FRP. If you are upgrading a W906 van that is still in active service, or preparing a conversion based on an older chassis, the W906-specific parts are the correct choice.

A common project in 2025 is converting a well-maintained W906 to a near-W907 exterior appearance. Side skirts are one of the lower-cost elements in that conversion because they do not require any cutting of the original body - they are bonded and clipped to the existing lower sill flange.

Installation, Bonding and Paint Preparation

Sprinter side skirts attach via a combination of OEM-style clip points along the lower sill flange and two-component polyurethane adhesive. The correct bonding sequence is: clean the sill surface with silicone remover, dry-fit the panel to confirm alignment with the wheel arch lips, apply adhesive to the panel flange, press into position and support with tape until cured, then fit clips. Total install time with two people is typically 60 to 90 minutes per side.

All DL Auto Design panels ship paint-ready with a factory primer coat. For a perfect finish, scuff the surface lightly with 320-grit paper, apply a sealer coat, then your body colour basecoat and lacquer. If you prefer to receive the panels already painted, contact us at the time of order with your Mercedes paint code - seven-digit codes found on the vehicle data card inside the engine bay - and we will match the colour in our Lithuanian paint facility before dispatch.

ADAS and Sensor Compatibility

W907 vans equipped with active lane-keeping, blind-spot monitoring or the optional Distronic radar package use sensors mounted in the front and rear bumpers. Side sills themselves do not carry sensors on any standard Sprinter variant, so sill fitment does not interfere with ADAS systems. However, if your chosen body kit includes a replacement front or rear bumper, confirm that the bumper is pre-cut for your sensor configuration before ordering. Our W907 bumper listings specify sensor hole provisions.

Shipping, Customs and VAT for European Buyers

We ship from Lithuania within the European Union, which means intra-EU buyers receive standard shipping with no import duties. Buyers outside the EU - including buyers in the UK post-Brexit, Norway, Switzerland and non-European markets - qualify for 0% EU VAT on their invoice, which reduces the panel cost directly. Shipping is worldwide; panels are crated individually in foam-lined boxes to prevent transit damage to edges and mounting flanges.

For UK buyers, import duty on plastic body parts from the EU is currently assessed at the standard UK Global Tariff rate. We provide a commercial invoice with the correct HS commodity code to simplify customs clearance. Contact us before ordering if you need a formal duty and shipping quotation for your country.

TUV Certification and Road Legality

In Germany, Austria, the Netherlands and other markets where TUV or equivalent type approval is required for modified exterior components, certification status is a purchasing decision factor. Several of our products carry TUV certificates, which we can provide as documentation. Side skirts that do not extend below the tyre contact patch and do not alter the wheel arch geometry are generally classed as decorative trim in most European markets and do not require individual type approval, but buyers should confirm local regulations before fitting. We recommend consulting your national vehicle inspection authority if you operate in a market with strict modification laws.

Frequently Asked Questions

Do Carlex Design side sills fit the Mercedes Sprinter W907?

Carlex Design specialises in interior conversions and does not produce exterior side sill panels for the Sprinter. If you are looking for premium exterior side skirts to pair with a Carlex interior build, DL Auto Design supplies ABS and FRP W907 side skirts that are paint-ready and cover all wheelbases from L1 to L4.

What is the difference between a side sill, side skirt and rocker panel on a Sprinter?

On the Sprinter all three terms describe the same component: the trim panel fitted to the lower body between the front and rear wheel arches. Sill and skirt are the most common European terms; rocker panel is more common in North American markets. The part number and fitment requirements are identical regardless of the term used.

Will W907 side skirts fit the W910 electric Sprinter?

The W910 eSprinter shares much of the W907 lower body architecture but has a reinforced battery floor that raises the sill line by a small amount. Confirm the exact build year and variant with us before ordering. We produce W910-compatible parts and can advise on fitment adjustments.

Can I order Sprinter side skirts already painted in my van colour?

Yes. Provide your seven-digit Mercedes paint code at the time of order and we will paint the panels in our Lithuanian facility before dispatch. Panels are also available paint-ready (primed) if you prefer to have your local bodyshop apply the colour.

Do I need to drill into the van body to fit aftermarket side skirts?

No drilling is required on standard Sprinter bodies. The panels bond to the lower sill flange using two-component polyurethane adhesive and locate on existing clip points. This preserves the original body and makes removal straightforward if needed.

How long does shipping to Germany or France take?

Standard intra-EU freight from Lithuania typically takes 3 to 7 business days to Western Europe. Express options are available. Large panels are crated to prevent edge damage in transit. Contact us for a precise lead time based on your order.

Sprinter side sills are one of the most cost-effective exterior upgrades available for W906, W907 and W910 vans because they transform the entire side profile without requiring structural work. Whether you are fitting an OEM-flush panel for a fleet conversion, a sport-profile skirt for a luxury passenger build, or pairing sills with a full body kit, the key decisions are generation, wheelbase, material and paint specification. We at DL Auto Design produce every variant in-house in Lithuania, ship across Europe with no intra-EU import duties, and offer 0% EU VAT for non-EU buyers worldwide. Browse our side skirt sets and full body kit options at dlautodesign.com and contact our team with your wheelbase and paint code to receive a precise fitment and pricing confirmation.