HV traction battery Mercedes MB EQB (X243) 2025 · A 243 340 51 03

Used high-voltage (HV) traction battery for Mercedes MB EQB (X243) (model year 2025). State of health (SOH) is measured and stated before dispatch - the test report comes with the part. Donor vehicle mileage: 48,450 km. OE number: A 243 340 51 03 (without separators: A2433405103) - compare it with the label on your part.

The part is in our offer and supplied to order: we confirm availability within 24 hours, delivery takes 5-10 working days. VAT invoice (23%). 12-month warranty when we install the part at our workshop in Imielin, Poland. Shipping across Poland and the EU (batteries on a pallet, ADR).

Before you buy a whole pack, ask us about repair: we fix many batteries at module level (replacing failed modules, balancing cells) from 3 500 PLN. We also replace the Mercedes MB EQB (X243) battery with BMS adaptation at our workshop in Imielin near Katowice, Poland. ECU Technik specialises in diagnostics and service of electric and hybrid vehicles - certified for high-voltage work, with our own battery test bench.