1991—1999: From systems partner to technology leader

1991Merger of the iron and steel activities of MAHLE GmbH with J.Wizemann GmbH & Co. to form the MAHLE Wizemann Group
1992Series production of pistons with GRAFAL® skirt coating
1993Acquisition of remaining shares in Knecht Filterwerke GmbH; today: MAHLE Filtersysteme GmbH
Oil filter module with filter inserts and plastic cover
1994Foundation of today’s MAHLE Componentes de Motor de México, S. de R.L. de C.V.
Merger of MAHLE Wizemann Group with Pleuco GmbH; today: MAHLE Ventiltrieb GmbH
MICRO-STAR® vehicle cabin air filters
1995Piston alloys M 142 and M 145 in series
Funnel-type cooling channel pistons in series
1996Acquisition of majority holding in Metal Leve S.A., Brazil; today: MAHLE Metal Leve S.A.
Joint venture MWP Migma Ltd., India; today: MAHLE Engine Components India Privat Limited
Start of robot-aided medium-pressure die casting
The ecological oil filter concept is awarded first prize by the Federation of German Industries (Bund der deutschen Industrie - BDI)
1997Takeover of the piston ring activities of Cofap S.A. with locations in Brazil (today: MAHLE Metal Leve S.A.) and Portugal (today: MAHLE Componentes de Motores S.A.)
Joint venture Kirloskar Knecht Filters Private Ltd.; today: MAHLE Filter Systems (India) Limited
Joint venture Knecht Duroplast Sistemas de Filtración S.A. de C.V., Mexico; today: MAHLE Sistemas de Filtración de México, S.A. de C.V.
Series production of air intake modules
1998Foundation of MAHLE Spolka z o.o. in Poland (now MAHLE Polska Spolka z o.o.)
M 174 piston alloy for high performance aluminium diesel engines goes in series
1999Name change of companies with majority holding by “MAHLE” in company name
Establishment of MAHLE Filtersysteme GmbH (previously: Knecht Filterwerke GmbH) and MAHLE Ventiltrieb GmbH (previously: MAHLE J.Wizemann-Pleuco GmbH)
Joint venture MAHLE Izumi (Liaoning) Piston Co., Ltd., China; today: MAHLE Engine Components (Yingkou) Co., Ltd.
Foundation of today’s MAHLE Engine Components (Nanjing) Co., Ltd.
Acquisition of majority holding in WSM Krotoszyn S.A., Poland; today: MAHLE Polska Spolka z o.o.
Joint venture Donghyun MAHLE Filter Systems Co., Ltd., South Korea; today: MAHLE Donghyun Filter Systems Co., Ltd.
Pistons for passenger cars with FERROPRINT® skirt coating in series