Mercedes W212 Door Lock Rear Latch Mechanism Left N/S A2047304335

Mercedes W212 Door Lock Rear Latch Mechanism Left N/S is an original locking mechanism designed for installation in the rear left part of the vehicle body. The component belongs to the Storage compartments, doors and locks group and has been specifically designed to meet the structural requirements of the Mercedes W212, ensuring proper compatibility with the factory door fittings and the vehicle's electrical system. It is a practical solution for users who want to restore the correct operation of door locking and unlocking without interfering with the body structure.

Specifications and technical data

• SKU: RHD-A2047304335-3
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2047304335
• Substitutable numbers: A2047304335, A 204 730 43 35, A2047302135, A 204 730 21 35, A2040085899, A 204 008 58 99
• Location on the vehicle: Rear, Left
• Category: Glove Boxes, Doors & Latches

Purpose and fitment for Mercedes W212

The presented lock mechanism has been developed for the rear left side of the body, which means its geometry, mounting points, and the way it interacts with the rods and the interior handle are consistent with the factory design specifications of the Mercedes W212. As a result, the lock works with the original door panel, seals, and guides, allowing for the maintenance of tightness and proper closing of the door wing.

Construction and function of the lock mechanism

The rear left door lock mechanism is responsible for several key operational functions:

• mechanical locking of the door wing against the body pillar,
• interaction with the exterior and interior handle for opening,
• transferring movement from rods and levers to the locking latches,
• stable retention of the door in the closed position while driving.

A properly selected mechanism helps reduce play at the closure, decrease noise resulting from improperly closed doors, and ensure repeatable, predictable operation during daily vehicle use.

Benefits of using an original door lock

Using an original door lock in a Mercedes W212 brings measurable technical and functional benefits. The component has been designed for a specific door structure, thanks to which it:

• fits factory mounting points without the need for modifications,
• maintains proper cooperation with existing rods and handles,
• enables correct closing and locking of the wing with minimal effort,
• reduces the risk of problems with improper closing or accidental door opening.

A used, original mechanism is often a reasonable choice in situations where the existing lock has suffered from operational wear, mechanical damage, or corrosion of internal working elements.

Installation zone: rear – left side of the vehicle

Precise determination of the location on the vehicle – the rear left part of the body – facilitates the selection of the correct component and eliminates the risk of confusion between the driver's and passenger's side or between front and rear doors. The mechanism is structurally prepared to work in this specific zone, which is important both for proper fitment and for the safety of passengers sitting in the rear.

Application in service practice

Replacing the rear left door lock in a Mercedes W212 is a typical service operation performed in case of locking problems, difficulties with opening, or noticeable play on the door wing. Using an original mechanism from the Storage compartments, doors and locks group allows for restoring the factory door operating parameters without the need for modifying the installation or interfering with the body structure.

If you are planning a comprehensive repair or modernization of the vehicle's access zone and need other elements from the same group, such as door locks, flap mechanisms, or glove box locking elements, check the available parts in the Mercedes Storage compartments, doors and locks category.

For users considering a broader vehicle service strategy, including the selection of used components according to manufacturer markings, practical tips regarding the analysis of OEM numbers and part selection procedures may be useful – you will find them in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses the approach to purchasing used components based on technical data.