Volkswagen EuroVan Back Up Light Bulb Size

The Volkswagen EuroVan back up light utilizes a P21W bulb size for illumination purposes. Data for the specific component covers a time range from 1993 through 2003.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1999-2003	P21W
1997	P21W
1995	P21W
1993	P21W

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.	P21W

Other Locations

Additional Notes

The Volkswagen EuroVan uses the P21W bulb as its back up light bulb across all listed model years from 1993 to 2003.
The P21W is an ECE-standard bulb, meaning it conforms to the Economic Commission for Europe regulatory framework used in European and worldwide automotive lighting applications.
P21W bulbs operate on a 12-volt electrical system and draw 21 watts, which is typical for single-filament signalling applications such as reverse lights.
The P21W uses a BA15s bayonet base, where "BA15" refers to the 15mm base width and "s" denotes a single contact at the base, as opposed to a dual-contact variant.
Because the P21W is a single-filament bulb, it serves one lighting function only, which is consistent with its role as a dedicated back up light rather than a combined stop or tail light.
The BA15s bayonet mount is not interchangeable with the BA15d base, which carries two offset contact pins. Substituting a BA15d bulb in a BA15s socket is not compatible.
The consistent use of the P21W across the 1993-2003 model year range indicates that the EuroVan's back up light socket specification did not change throughout that production period.