Diesel Eng. - Oil Leaks/MIL ON/Code 4674 Set
SI B 170209
Cooling Systems
November 2009
Technical Service
This Service Information bulletin supersedes SI B17 02 09 dated July 2009.
[NEW] designates changes to this revision
SUBJECT
Oil Leak from Turbocharger Charge Air Hose
MODEL
E70, E90 with M57Y diesel engine
SITUATION
The customer may complain of an oil leak from the engine area. The "Service Engine Soon" lamp may also be illuminated with fault code "4674 -
FMO injection quantities-observer" stored.
CAUSE
The molded seal in the charge air pipe may have been cut by debris abrasions, causing an external leak of air and oil in the charged air system of the
turbocharger. An improved seal has been developed to correct this issue.
PROCEDURE
Remove the charge air pipe that connects the turbocharger to the intercooler. Thoroughly clean all mating surfaces and the charge air pipe.
2010 BMW 335d Sedan (E90) L6-3.0L DSL Turbo (M57Y) Page 251
^ Replace the seal (1) with P/N 11 61 8 506 786 and reinstall the charge air pipe.
PARTS INFORMATION
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Warranty.
