2010 Mercedes Benz S 600 (221.176) V125.5L Turbo (275.953) Vehicle: All Technical Service Bulletins Steering Electrohydraulic Power Steering Pump Leak Oil leak at power supply connector of electrohydraulic power steering pump (EHPS), sometimes with reduced power assistance Topic number LI46.30P054912 Version 1 Design group 46.30 Power steering pump Date 10292012 Validity MODEL 221 as of ident number #A 286000 up to ident number #A 495000 except vehicles with code 489 (Activ MODEL 216 as of ident number #A 023500 up to ident number #A 030800 except vehicles with code 489 (Activ Reason for change Complaint: In individual cases oil may be seen at the power supply connector of the electrohydraulic power steering pump (EHPS) A91/1 (see attachment 001) and at the wiring harness for the power supply (see attachment 002), sometimes in combination with noises when steering and/or with reduced power assistance. The capillary effect may have cause the o...
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