Since August 2010, the Volkswagen Plastics Technology facility in Braunschweig, Germany has been using the CO2 snow jet technique to clean interior components before painting. We first reported on the snow jet system for cleaning plastic automotive parts last February in this article on the use of the system by BMW. Supplier of these snow jet systems is a German company called acp (advanced clean production GmbH).
For BMW the snow jet system from acp is used to clean exterior plastic parts before applying a primer. Among the reasons BMW cited for its switch from a powerwash system to a CO2 "snow jet" system are lower costs, a more environmentally sustainable process, improved quality, plus a reduced footprint in the carmaker's facility.