The Mercedes-Benz S65 AMG front turn signal requires a PY24WNA or 2357NA bulb size, while the rear turn signal uses a 12271NA or 12496 bulb size. The replacement chart covers 2006 to 2013 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The PY24WNA is the most frequently specified bulb across these turn signal fitments, appearing in the Mercedes-Benz S65 AMG front turn signal position for model years 2007-2013.
The PY24WNA operates at 12V with a 24W output and uses a PGU20-4 base. It is the amber variant of the ECE PY24W standard, adapted to meet ANSI requirements for the US and Canadian markets.
The PGU20-4 base is a wedge-type locating base specific to the PY24W family, meaning it is not interchangeable with common bayonet or wedge base bulbs used in other automotive applications.
The 2006 Mercedes-Benz S65 AMG front turn signal position uses the 2357NA rather than the PY24WNA. The 2357NA is a dual-filament bulb rated at 12V with a high/low filament output of 26.9W and 8W respectively, using a BAY15d bayonet base.
Because the 2357NA uses a BAY15d bayonet base and the PY24WNA uses a PGU20-4 base, these two bulbs are not physically interchangeable despite both serving the front turn signal function on the S65 AMG.
The natural amber glass designation on both the PY24WNA and 2357NA indicates the amber color is achieved through the glass coating rather than an amber-tinted lens, which is a requirement under ANSI standards for North American market vehicles.
The rear turn signal on the 2007-2008 S65 AMG uses the 12271NA, which is identified as an OEM part number rather than an ANSI or ECE standard designation. It operates at 12V and features natural amber glass.
The 2006 S65 AMG rear turn signal uses the 12496, a Philips/Osram part number classified as a halogen bulb for specialty applications, operating at 12V. Its manufacturer-specific designation indicates it falls outside standard ANSI or ECE bulb families.
The rear turn signal fitment data covers only 2006-2008, while the front turn signal data extends through 2013, reflecting that the rear and front positions do not share a uniform coverage range within these specifications.
The shift from the 2357NA to the PY24WNA in the front turn signal position between the 2006 and 2007 model years represents a base type change from BAY15d to PGU20-4, which affects socket compatibility in the housing.