Used Mercedes-Benz EQE Brake Master Cylinder

No — the EQE is a fully electric vehicle and does not have a conventional hydraulic brake master cylinder. Electric Mercedes models like the EQE use a brake-by-wire system (an integrated brake unit or iBooster-style electrohydraulic unit) rather than a traditional master cylinder, so this part simply was never fitted to any variant of the EQE. If you are looking for a brake component, you likely need the integrated brake control unit or electrohydraulic brake actuator — confirm the exact part name and number with a breaker against your registration before ordering.

Almost certainly yes — the EQE has no brake master cylinder because it uses a brake-by-wire system that replaces the traditional master cylinder with an electrohydraulic brake actuator unit. This is common across all fully electric Mercedes-Benz models, so no variant or trim level of the EQE will have the part you originally searched for. Try searching for 'EQE brake actuator', 'EQE brake booster unit', or 'integrated brake unit', and ask a breaker to cross-reference the correct part number against your vehicle registration to be sure.

No — trim level makes no difference here, because the absence of a brake master cylinder on the EQE is down to its fully electric drivetrain, not trim specification. Every EQE variant, from entry-level to AMG Line, uses the same brake-by-wire architecture without a conventional master cylinder. The brake component you need will be the electrohydraulic brake unit, and a breaker can confirm the correct part against your registration.

No — the drivetrain layout does not affect this, because neither the rear-wheel-drive nor the 4MATIC EQE uses a conventional brake master cylinder; both rely on the same brake-by-wire electrohydraulic system. The 4MATIC variants may have slightly different brake hardware to manage torque split and regeneration, but still no traditional master cylinder is fitted to any of them. If you need a brake system component for a 4MATIC EQE, describe the specific issue to a breaker and ask them to identify the correct electrohydraulic unit for your registration.

No, and this is not a viable swap — the EQE's brake-by-wire system is architecturally different from the hydraulic systems on combustion-engined Mercedes models, and a conventional master cylinder from a C-Class or E-Class has no compatible mounting or function on the EQE. If a breaker is offering you a conventional master cylinder for an EQE, it is worth double-checking you have described the vehicle correctly. The part you are likely after is the integrated electrohydraulic brake actuator unit specific to the EQE — confirm this with a breaker using your registration number.