Secondary Lock

WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

The secondary lock is a housing securing mechanism (second locking mechanism) that secures all wires in one connector housing. If a secondary lock is installed at a connector housing, it must always be opened or removed using specified tool before releasing and pulling out individual crimp contacts.

Secondary lock is distinguished by a different color from the rest of the connector housing. It simplifies recognizing the secondary lock and clarifies its function.

The shapes of the connector housings depicted here are only a selection which, as an example, should make clear the various functions of the secondary lock.

Example 1

Fig 1: Identifying Secondary Lock (Comb Type)

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Housing securing mechanism is released by removing a "comb" -arrow-.

Example 2

Fig 2: Identifying Secondary Lock (Flap Type)

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Housing securing mechanism is released by opening a "flap" -arrow-.

Example 3

Fig 3: Identifying Secondary Lock (Slider Type)

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Housing securing mechanism can be released by disengaging a "slider" -arrow-.