The selected E90 rear-left lock is the five-pin actuator-and-latch version. A similar housing or an E90 name in a search result does not establish that a seven-pin version is the same assembly.
Keep the connector check with the door position and vehicle scope. The particular offer is limited to the listed E90 320i sedan application, 09/2007–12/2011.
Identify the rear-left assembly
The E90 320i five-pin rear-left latch uses reference 51227202147. Rear left is the passenger side on the Australian vehicle.
A front-door latch, right-rear latch or boot lock is not covered by that identification. Nor does the reference here establish fitment for another BMW series, body or connector variant.
Compare contacts and keying with the complete latch
Match the original reference, five-position connector, populated contacts and keying, then check the latch plate, release linkage and mounting points. A complete-unit view helps keep a detail connector photograph associated with the correct latch.
Do not infer pin functions, control features or electrical readings from the contact count. If the original has seven pins or a different keying pattern, leave the match unresolved rather than selecting the closest-looking housing.
Read the package as a latch-and-actuator assembly
The offer contains one rear-left actuator/latch assembly. Handles, cables, trim and installation hardware are excluded. Have the installer identify any additional requirements after diagnosing the complaint.
The existing door-lock actuator failure guide addresses the broader symptom question. This article stays on identifying this selected assembly; a matching reference alone is not a diagnosis.
Send evidence of the actual variant
Provide the VIN, build month, E90 sedan identification, door side, original number and accessible photographs of the complete latch, connector and linkage. Use vehicle-specific service information for removal, wiring checks and installation.
Prepared from application records and the linked product photographs. The featured workshop scene is an AI-generated editorial illustration. Information reviewed on 3 November 2026.