Mercedes-Benz EQS Battery Replacement Parts

The Mercedes-Benz EQS launched in 2021 and received a facelift for the 2024 model year, so a 2022 and 2023 car sit within the same pre-facelift generation and are likely to share the same battery specification. That said, battery fitment is driven by physical size and electrical spec rather than model year alone, so you should confirm the exact battery part number and voltage with the breaker against your registration before buying.

The EQS facelift arrived for the 2024 model year and brought updates that can include changes to battery chemistry, capacity, or management hardware, meaning a pre-facelift (2021–2023) battery may not be a straight swap into a post-facelift car. Name the boundary to your breaker and ask them to cross-reference both registrations before agreeing a sale, as this is exactly the kind of change that varies car to car.

For the EQS, the drive variant (450+ or 580 4MATIC) does matter for battery fitment because different variants can use different battery pack configurations or management units, unlike trim levels that only affect interior or cosmetic features. This means you cannot assume any EQS battery is a universal fit — always confirm the specific variant and battery part number with the breaker against your registration.

Battery fitment on the EQS is spec-driven — physical dimensions, voltage, capacity, and connector type all need to match — so a battery from a different year could in principle be compatible if those figures align. However, software and battery management system compatibility adds another layer of complexity on modern EVs, so confirm all details with the breaker against your exact registration rather than relying on year alone.

The EQS 350+ and 450+ can share the same physical battery pack in some configurations, but motor output tuning and software calibration differences mean you should not assume the units are interchangeable without checking. Ask the breaker to confirm the part number against both registrations to be sure the battery and its associated hardware are a genuine match for your car.

Ask the breaker to confirm the battery's physical size, voltage, usable capacity, and part number match your car's specification, verified against your registration plate. Also ask about the battery's state of health (SoH) if available, as a used EV battery with significant degradation may offer noticeably reduced range even if it fits and functions correctly.