51 16 992 Disassembling and assembling lock barrel (lock barrel removed)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary work

If necessary, remove LOCK BARREL .

Sort supplied retainers (1) according to graphic.

(X) Embossed number on retainer (1)
(Y) Installation position in lock barrel

Fig 1: Identifying Retainers
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Insert spring (1) into first position of lock barrel (2).

NOTE: Lock barrel version (2) differs according to vehicle.

Fig 2: Identifying Spring And Lock Barrel

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Insert retainer (1) with lowest embossed number (X) of first position (Y) in lock barrel (2) and engage audibly.

NOTE: Number of retainers (1) differs according to vehicle.

Fig 3: Identifying Retainer And Lock Barrel

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Insert ignition key (1) in lock barrel (3) and check whether retainer (2) is flush with housing.

OK
not OK

Fig 4: Identifying Ignition Key In Lock Barrel And Retainer (Ok And Not Ok)
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If retainer (2) is not OK, press retainer (2) out of lock barrel (3) with a suitable tool (1).

Repeat work operations with retainer (2) with next higher number (X) until correct retainer (2) has been found.

Carry out all further positions in lock barrel as described in the process above.

Fig 5: Pressing Retainer Out Of Lock Barrel Using Suitable Tool

Courtesy of BMW OF NORTH AMERICA, INC.