Silicone Intercooler Hose Kit for Smart Fortwo Roadster (2003-2007) 0.8L

Reinforced Silicone Intercooler Hose Kit for 2003-2007 Smart Fortwo, Roadster

What it Does: The Silicone Intercooler Hose Kit replaces the fragile factory charge-air hoses on the 2003-2007 Smart Fortwo and Roadster to eliminate boost leaks, prevent hose collapse under high thermal loads, and maintain steady manifold pressure.

The Stock Smart Fortwo, Roadster Intercooler Hose Degradation

The OEM rubber charge-air lines on the rear-mounted OM660 platform endure persistent heat soak due to the compact rear engine bay of the W450 and W452 chassis. Factory vulcanized rubber hoses harden and oxidize when exposed to high under-hood heat cycles and crankcase oil mist blow-by. Over time, this results in sidewall ballooning under boost, micro-fracturing along the bends, and coupling blow-offs at the intercooler inlet and outlet stubs, causing unmetered boost loss and limp-mode conditions.

The Engineering Solution

Molded from multi-ply reinforced polyester-backed silicone, this direct replacement hose kit eliminates boost expansion across the entire operating range. The oil-resistant inner fluorosilicone liner prevents oil mist saturation and delamination, while the smooth-bore design reduces aerodynamic boundary-layer drag across the charge-air circuit. Rated to withstand elevated burst pressures and continuous temperatures from -65°F to 350°F, it maintains wall rigidity without deforming under rapid throttle actuation.

Technical Specifications

Compatibility

• 2003-2007 Smart Fortwo Coupe / Cabrio (W450) 0.8L cdi
• 2003-2007 Smart Roadster (W452) 0.8L applications

Frequently Asked Questions

Does this fit the W450 and W452 Fortwo, Roadster?
Yes, this is a direct fit for the 2003-2007 Smart Fortwo and Roadster equipped with the 0.8L OM660 engine platform.

Is an ECU tune required after installing this hose kit?
No ECU calibration is needed; the kit replicates OEM physical routing while preventing boost bleed.

The Smart European Caliber

Engineered to meet stringent European tolerance benchmarks, this multi-ply silicone hose kit delivers a precise, leak-free seal on tight factory intercooler connections, preventing check-engine lights and maintaining consistent pressure ratios in demanding driving conditions.