The 2026 Mercedes-Benz EQS 580 4MATIC represents the flagship dual-motor all-wheel-drive configuration in Mercedes-Benz's electric luxury sedan lineup. Built on the dedicated EVA2 electric platform, this variant pairs front and rear permanent magnet synchronous motors with a large-capacity lithium-ion battery pack for seamless AWD performance. The EQS 580 4MATIC requires specialized maintenance procedures distinct from combustion vehicles, including high-voltage system protocols, brake fluid service adapted for regenerative braking systems, and thermal management fluid specifications critical to battery longevity and motor cooling.
Dual permanent magnet synchronous motors with electronic AWD torque vectoring
High-voltage battery cooling system requires specific coolant type and service intervals
Regenerative braking system extends brake component life but requires periodic inspection
Air suspension with adaptive damping requires specific torque specs for service
MBUX Hyperscreen integration affects diagnostic procedures and software update requirements
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Fitment notes: Auxiliary 12V battery; located in rear trunk area; supports vehicle electronics while main EV battery powers drivetrain
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Every control module on the 2026 Mercedes-Benz EQS 580 4MATIC — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Front Passenger Display Control Unit (FPD)4.5 hr R&Rsecurity gateway +1.5 hr▸ programming details
📍 Behind dashboard, integrated into MBUX Hyperscreen right section
🔧 Xentry Diagnostics + SCN online
⚠️ 12.3-inch OLED passenger display; part of Hyperscreen assembly; requires entire screen assembly removal; VIN-locked
Front Electric Drive Unit Control Module (EDU-F)4.2 hr R&Rsecurity gateway +1.2 hr▸ programming details
📍 Front electric motor housing, center of front axle assembly
🔧 Xentry Diagnostics + SCN online
⚠️ 4MATIC models only; requires front subframe lowering; VIN-locked to battery management system
Rear-Axle Steering Control Unit (RAS)3.5 hr R&Rsecurity gateway +1.5 hr▸ programming details
📍 Rear subframe, center above rear differential area
🔧 Xentry Diagnostics + SCN online
⚠️ Up to 10-degree rear steering angle; requires rear axle alignment and extensive calibration after replacement; lift required
📍 Front trunk (frunk) area, right side near charge port
🔧 Xentry Diagnostics + SCN online
⚠️ Controls AC charging up to 22kW; VIN-locked to HVEM and BMS
Electric Power Steering Control Unit (EPS)2.2 hr R&Rsecurity gateway +1.2 hr▸ programming details
📍 Steering column, below dashboard near pedal assembly
🔧 Xentry Diagnostics + SCN online
⚠️ Integrated with rear-axle steering coordination on 4MATIC; requires steering angle sensor calibration and VIN-lock coding
Stereo Multi-Purpose Camera Control Unit (SMPC)2.0 hr R&Rsecurity gateway +1.5 hr▸ programming details
📍 Windshield, center top behind rearview mirror
🔧 Xentry Diagnostics + SCN online
⚠️ Stereo camera for lane keeping, traffic sign recognition, and active steering assist; requires windshield removal and camera calibration; VIN-locked
Rear Right Door Control Module (DCM-RR)1.5 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Rear right door, lower section behind trim panel
🔧 Xentry Diagnostics
⚠️ Controls power windows, soft-close, and ambient lighting; window initialization required after replacement
Rear Radar Sensor Control Unit Right (RSU-RR)1.2 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Rear bumper, right side behind cover
🔧 Xentry Diagnostics + SCN online
⚠️ Short-range radar for blind spot assist and rear cross-traffic; requires radar aim calibration; VIN-locked
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2026 Mercedes-Benz EQS 580 4MATIC Dual Motor Electric and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.