Mercedes EQA H243 350 4MATIC Rear Electric Engine 22k, A2433403202 WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

Mercedes EQA H243 350 4MATIC Rear Electric Engine 22k, A2433403202 WARRANTY is an original rear electric drive motor designed for the rear axle of the EQA H243 model in the 350 4MATIC version. This component operates within the electric all-wheel-drive system, ensuring stable torque transfer to the rear axle and supporting dynamic acceleration. Thanks to its factory design, this Mercedes part is a precisely matched drivetrain component that allows for maintaining proper traction parameters and safety.

Specifications and technical data

• SKU: A2433403202
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2433403202
• Substitutable numbers: A2433403202, A 243 340 32 02, A2433408802, A 243 340 88 02
• Location on the vehicle: Rear
• Category: Engines
• Engine code: 780200
• Mileage: 22000

Purpose and function in the drivetrain

The presented motor belongs to the Engines category and is intended for installation on the rear axle of the vehicle. In the Mercedes EQA H243 350 4MATIC model, it is responsible for driving the rear wheels, working in conjunction with the front drive unit and the electronics controlling torque distribution. Such a system allows for smooth load switching between the axles, improving traction on slippery surfaces and stability at higher speeds.

The rear motor in this model is a key element of the 4MATIC configuration, which is why its proper operation has a direct impact on:

• efficient use of the entire electric system's power,
• even acceleration without wheel slip,
• vehicle stability during maneuvers and cornering,
• the operation of safety systems, such as traction and stability control.

Technical and operational characteristics

The rear electric motor used in the EQA H243 350 4MATIC works with dedicated control systems and a transmission, forming a compact drive module. The used engine code allows for unambiguous identification of the unit and its compatibility with a specific vehicle configuration. This enables precise part selection based on vehicle data, which minimizes the risk of installation issues.

An important parameter when purchasing a used electric motor is its previous usage. A properly selected mileage allows for assessing the unit's potential for further operation in the vehicle, as well as planning any necessary maintenance. In the case of electric drives, proper cooperation with the existing high-voltage installation and cooling system is also important – using an original component significantly facilitates maintaining this compatibility.

Benefits of using an original Mercedes electric motor

Choosing an original rear electric motor for the EQA H243 350 4MATIC provides a number of practical benefits:

• Factory fit – maintaining the correct mounting geometry, attachment points, and connections with the wiring harness and drivetrain.
• Consistency with vehicle software – proper cooperation with all-wheel-drive control systems and energy recuperation.
• Stable operating parameters – predictable vehicle behavior in various road conditions, in accordance with the manufacturer's specifications.
• The possibility of optimizing repair costs by using a used, original component instead of a new replacement.

Thanks to this, the rear motor can be used both for post-accident repairs and for replacing a worn-out drive unit, restoring full functionality of the 4MATIC system.

Selection, compatibility verification, and installation aspects

To correctly select a rear electric motor for a specific Mercedes EQA H243 350 4MATIC, it is recommended to verify compatibility using factory numbers and the engine code, as well as to compare the vehicle configuration (drive version, model year, equipment). In workshop practice, the selection procedure using the VIN is proven, which minimizes the risk of incompatibility.

Before installation, it is worth paying attention to:

• the condition of high-voltage and signal connectors,
• compatibility with the existing cooling system,
• proper seating in the mounting points on the rear axle,
• the necessity of performing adaptation or vehicle software updates (in accordance with service procedures).

Such an approach allows for seamless integration of the unit with the rest of the drivetrain and limits the risk of system errors after starting the vehicle.

Used electric motor – economic and technical aspects

In the case of items from the Engines category, using a used component can be a reasonable compromise between costs and maintaining high technical parameters. A properly selected and tested electric motor allows for significantly reducing repair costs compared to purchasing a new unit, while maintaining the vehicle's factory specifications.

More information on how to make informed decisions when purchasing used drive units can be found in the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, where, among other things, procedures for selection by VIN and OEM and cost ratios compared to new parts are discussed.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as drive units, auxiliary modules, or complete drive assemblies, check the available parts in the Mercedes Engines category.