Engine Controls - Camshaft Position/VANOS DTC's, MIL ON

SI B12 14 12
Engine Electrical Systems

August 2012
Technical Service

This Service Information bulletin supersedes SI B12 14 12 dated July 2012.

[NEW] designates changes to this revision

SUBJECT
N55 Engine: Various Faults Stored in DME Related to VANOS and Camshaft Position

MODEL
E70
E71
E82 and E88 135i
E90, 92 and E93 335i
F07 535i
F10 535i
F12 and F13 640i
F25

SITUATION
A rattling noise can be heard from the engine compartment; the engine has
a loss of power; and the Service Engine Soon lamp is illuminated. One or more of the following faults may be stored.

E70, E71, E82, E88, E90, E92 and E93:

2D5A - VANOS, intake: control fault, camshaft sticking

2D5B - VANOS, intake: control fault, position not reached

2D60 - VANOS, exhaust: control fault, camshaft sticking

2D61 - VANOS, exhaust: control fault, position not reached

2D9F - camshaft input sensor: signal implausible

2DA1 - Camshaft exhaust sensor: signal implausible

300C - Camshaft input sensor: signal high

300D - Camshaft input sensor: signal low

300E - Camshaft exhaust sensor: signal high

300F - Camshaft exhaust sensor: signal low

F07, F10, F12, F13 and F25:

130104 - VANOS, intake: control fault, camshaft sticking

130108 - VANOS, intake: control fault, position not reached

130304 - VANOS, exhaust: control fault, camshaft sticking

130308 - VANOS, exhaust: control fault, position not reached

130E11 - Camshaft input sensor: signal implausible

130F11 - Camshaft exhaust sensor: signal implausible

164020 - Camshaft input sensor: signal high

164021 - Camshaft input sensor: signal low

164030 - Camshaft exhaust sensor: signal high

164031 - Camshaft exhaust sensor: signal low

CAUSE
One or both (intake and/or exhaust) of the VANOS gear assemblies have failed; the attaching bolts may have also loosened and/or broken.

PROCEDURE

1. Replace both VANOS gear assemblies. Refer to Repair Instruction 11 36 046 "Removing and installing or replacing intake and exhaust camshaft units (N55)."

2. If the bolts have been found broken, the missing portions of the bolts will need to be retrieved from the engine before the final repairs are made. This additional work may include removing the engine oil pan, and a close examination of the timing chain drive to retrieve the missing parts. Refer to the applicable repair instructions for oil pan removal procedures.

Replacement of the parts described in the bulletin does not require TeileClearing Authorization.





PARTS INFORMATION





[NEW] WARRANTY INFORMATION