Abstract: This article describes 2002-2006 MINI Cooper S Supercharger Oil Service.
Applies to: MINI Cooper S: 2004-2006
Read Cautions and Warnings before beginning any work on your vehicle.
Use the following procedure to check and top up Supercharger oil (W11 engine).
W11 engine supercharger has two oil reservoirs. One on the front of the super charger below the drive pulley. One on the rear behind the water pump. Each is covered separately.
MINI W11 engine uses an Eaton supercharger. MINi does not recommend oil services, therefore no oil is available through MINI parts. General Motors uses a similiar Eaton supercharger and their oil can be substituted. GM Part numer 12345982.
Supercharger front oil reservoir, oil checking (W11 engine)
- Remove engine oil dipstick tube.
- Using a 5mm (3/16) allen wrench remove oil fill plug (inset).
- Oil should run out of supercharger when fill plug is removed. If it does not, fill oil reservoir until oil starts to run out of fill hole. (arrow)
- Reinstall plug and tighten.
Supercharge rear oil reservoir, oil checking (W11 engine)
- Remove water pump. See 170 Radiator and Cooling System.
- Using a 5mm (3/16) allen wrench remove oil fill plug (arrow).
Supercharger removed from vehicle for clarity
- Oil level should run out of supercharger when plug is removed. If it does not, fill oil reservoir until oil starts to run out of fill hole. (arrow)
- Reinstall plug and tighten.