Removing Lambda oxygen sensor for the cylinders 5 to 8

• Unlatch the plug connection (1) upwards and disconnect.
• Unlatch the cable from the detents (2).

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• Release the Lambda oxygen sensor (1) with the special tool 0 491 074 (11 7 020)  .
• Remove the Lambda oxygen sensor (1).

Courtesy of BMW OF NORTH AMERICA, INC.