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BMW TSB #121412
2010 BMW Z4
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- N51, N52K, N52T and N55 Engine: Various Faults Stored in DME Related to VANOS and Camshaft Position. A rattling noise can be heard from the engine compartment; the engine exhibits 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: 2A7C - VANOS, inlet, cold start 2A82 - VANOS, intake, variable cam control test 2A7A - VANOS, exhaust, cold start 2A87 - VANOS, intake: control fault, camshaft sticking 2D5A - VANOS, intake: control fault, camshaft sticking 2D5B - VANOS, intake: control fault, position not reached 2D54 - VANOS, exhaust, cold start: not controllable 2D55 - VANOS, intake, cold start: not controllable 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.
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