The Volkswagen Golf R side marker requires a bulb size of 12961 for the lighting assembly. Data for the specific component covers the range from 2012 to 2013.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 12961 is the sole bulb type listed across all front side marker positions in the Volkswagen Golf R specifications, appearing for model years 2012-2013 and 2015-2018.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts and rated at 5 watts.
T10 bulbs use a W2.1x9.5d wedge base, which is a pinless design that relies on two metal contacts pressed against the sides of the socket for electrical connection.
The 2015-2018 Golf R front side marker fitment carries a conditional note specifying that the 12961 applies only to vehicles equipped with Halogen Capsule Headlamps, indicating that headlamp type is a relevant variable for correct bulb selection on those model years.
The 2012-2013 entries carry no headlamp-type condition, meaning the 12961 is listed as a straightforward fitment without trim or equipment qualifiers for those years.
At 5 watts, the 12961 falls within the low-wattage range typical of side marker and parking light applications, where output requirements are modest compared to primary lighting functions.