Eight years ago there was a sensation in the automotive industry when Mann+Hummel (Ludwigsburg, Germany) introduced the first oil module in plastic worldwide as a highlight at the IAA Frankfurt motor show. The module, developed in close co-operation with Audi AG, was initially used in the two-liter, four-cylinder FSI direct injection petrol engine of Volkswagen and Audi. Now production of the plastic oil module has exceeded 5 million - 4 million of them manufactured in Ludwigsburg - and new modules for different customers have been developed.
The module is reportedly more than 85% plastic by weight, providing a weight savings of around 20% compared with a conventional aluminum housing. Bayer AG (Leverkusen) supplies the glass-filled nylon used in the module. The only metal components in the module are an aluminum oil cooler and metal inserts and valves....