VOLKSWAGEN issued a recall on the S4 and S6 models

On certain vehicles, a fuel feed line connecting the fuel filter to the engine can prematurely age and shrink through exposure to high under hood temperature caused by the turbocharger. Such shrinkage could cause a clamp connection adjacent to the turbocharger to loose its clamping force resulting in fuel seepage. Correction: Dealers will replace the entire fuel feed line from the filter to the engine with a fuel line of shrinkage-proof material.