2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 110711 Date: 110701
Engine - Turbocharger Failure: Oil Supply Line Blockage
SI B11 07 11
Engine
July 2011
Technical Service
SUBJECT
Turbocharger Failure: Oil Supply Line Blockage
MODEL
All
SITUATION
The customer complains of loss of performance and turbocharger noise.
CAUSE
The turbocharger oil supply may be restricted, causing oil starvation and resulting in the seizing of the turbocharger assembly.
2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 147
PROCEDURE
Upon replacement of the turbocharger assembly, always remove and inspect the oil supply lines for blockage or restriction. Ensure that the lines are
not collapsed or kinked. Replace the lines if a blockage or restriction is detected. Inspection of the oil supply lines will avoid repeated failure of the
turbocharger assembly.
WARRANTY INFORMATION
This service information bulletin is intended to provide technical diagnostic and/or repair information only.
If a warranty claim results from the above repairs, it should be submitted following the regular warranty claim procedures..
