[FAST START-UP] - Bosch patented Duraterm technology enables the glow plug to reach higher temperatures more quickly for fast engine start-up [ANTI-SEIZE DESIGN] - Nickel-plated, rolled threads offer increased strength and prevent seizure [LONGER LIFE] - Twin Viton seals promote longer life by protecting the coils against exhaust gas damage [EASY INSTALLATION] - Bosch Glow Plugs incorporate OE or OE spec connectors for a precise fit and easy installation [ORIGINAL EQUIPMENT] - Actual OE part - the same component that was installed when vehicle was manufactured Compatible with select 1996-99 Mercedes-Benz E300 vehicles with diesel engine (verify specific fitment details with fit checker above)