Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534

The Mercedes ML W163 Front Right Left Door Wiring Harness is a complete electrical harness designed for the driver's and passenger's front doors of the ML W163 series. This item from the Wires, Harnesses, and Connectors category ensures proper electrical connection between the doors and the vehicle's body wiring, enabling stable operation of window regulators, locks, and other door components. Its factory design makes it convenient for installation and technically matched to the vehicle's electrical architecture.

Specifications and technical data

• SKU: A1635400534
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1635400534
• Substitutable numbers: A1635400534, A 163 540 05 34, KZ
• Location on the vehicle: Front, Left, Right
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Vehicle Placement

This door wiring harness is intended for installation in the front left and right doors of the vehicle. It covers the sections running from the body pillar into the door, with appropriate connectors for the specific equipment of the ML W163 model. This placement allows for direct connection of factory modules and actuators without the need for harness modifications.

Technical Characteristics of the Harness

This wiring harness belongs to the Wires, Harnesses, and Connectors group, meaning it consists of a set of wires with selected cross-sections, insulation, and factory connectors adapted for door environments (hinge movement, temperature changes, humidity). The harness design includes:

• routing of wires in flexible conduits between the pillar and the door,
• dedicated multi-pin connectors for linking to the body wiring,
• branching to individual door components (e.g., motors, switches, lighting),
• factory mounting points for the door panel and grommets.

By maintaining the original harness geometry, installation is organized, and the risk of wire abrasion or mechanical damage is reduced.

Application in Door Electrical Service and Repairs

The door harness for the ML W163 is particularly useful when the existing wiring has suffered mechanical damage (broken wires in the grommet, contact corrosion, melting) or has been improperly repaired previously. Using a complete harness instead of spot repairs allows for:

• restoring stable power and communication to door components,
• reducing issues with intermittent operation of windows, locks, or mirrors,
• organizing wire routing according to the factory design,
• minimizing the number of additional splices and non-factory connections.

For workshops specializing in Mercedes vehicles, using a complete harness is a convenient service solution that shortens diagnostic and installation times.

Item Condition and Benefits of Choosing a Used Part

The offered door wiring harness is a used part, sourced from a dismantled vehicle. This type of part retains the original manufacturer's construction, promoting compatibility with the vehicle's factory electrical system. Compared to aftermarket replacements or custom-made harnesses, an original door harness:

• features factory connectors and wire lengths tailored for the ML W163,
• simplifies installation without requiring modifications to the main wiring,
• reduces the risk of installation errors and electrical diagnostic problems.

For users who value the consistency of factory solutions, this is a practical way to restore proper door electrical function while keeping repair costs reasonable.

Support in Selection and Additional Materials

When selecting a door wiring harness for a specific ML W163 equipment version, it's advisable to consider the vehicle's configuration (type of window, lock, and mirror control). If in doubt, consult an automotive electrician. If you are also interested in other body electrical components for this brand, check the available parts in the Mercedes Wires, Harnesses, and Connectors category.

For those planning a more extensive interior upgrade, including seats, steering wheels, or multimedia systems, a practical guide on selecting and installing aftermarket parts may be helpful – you can find it in the article Premium Interior for Half the Price: Used Seats, Steering Wheels, and Multimedia.