I have a question exclusively for someone who really knows about these auxilliary air valves found on 1.9 enegines 83-85, and on Air-cooled from 80-83.
Are they all the same? The ones for Volkswagen all look the same, and so are some for Mercedes, Audi, Porsche etc.

All have the firs 7 digits in common: 0 280 140 101, 141, etc.
I found one on a air-cooled and the number shows up as Audi, yet the engine runs fine.
Experts?

Robert
1982 Westfalia