Front Door Latch: Description and Operation
Door Latch Assembly
Two versions of door latch mechanisms are installed in both the E66 and E65. The L-Lock assembly is the basic latch on vehicles without options such as SCA and Comfort Access (available in the future).
The M-lock assembly includes an extra motor for SCA functions and may be fitted with other options. The latch mechanisms are not interchangeable because the electrical connectors are different.