The Volkswagen Cabrio brake light uses a P21W bulb size for the specific lighting component located at the rear of the vehicle. Provided information covers the time period from 1995 through 2002 for the specified automotive application.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Volkswagen Cabrio uses the P21W bulb for its brake lights across the 1995-2002 model years.
The P21W is an ECE-standard bulb, meaning it follows European and international specifications rather than North American ANSI standards.
P21W bulbs operate at 12V and 21W, with a single filament dedicated solely to one lighting function, which is consistent with brake light applications.
The P21W uses a BA15s bayonet base, a single-contact fitting that is not interchangeable with dual-contact bayonet bases such as the BA15d.
The Center High Mount Stop Light on the Volkswagen Cabrio uses the bulb size 70 for the 1995-1999 model years.
The bulb 70 follows the ANSI standard used in the United States and Canada, making it a different specification family from the ECE-standard P21W used in the main brake lights of the same vehicle.
The 70 is a miniature wedge bulb of the T5 form factor, operating at 12V and 1.4W, reflecting the lower power demands of a supplemental stop light position.
The 1999 Volkswagen Cabrio Center High Mount Stop Light carries a fitment note specifying the bulb size 70 applies only up to production sequence 1E-XM806 130, indicating a mid-year specification change within that model year.