Fitment notes: OEM size: 12V 12Ah AGM (auxiliary/support battery) · Location: engine bay, passenger (right) side near the firewall/wheel-arch area, separate from the main battery · Purpose: voltage support for ECO start/stop and electronics backup
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Control Modules — 2026 Mercedes-Benz GLE43 AMG
Every control module on the 2024-2026 Mercedes-Benz GLE43 AMG — 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.
Climate Control Unit (CCU)2.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Behind center dashboard, above transmission tunnel
🔧 Xentry Diagnostics
⚠️ Requires refrigerant recovery/recharge. Coding for vehicle-specific HVAC configuration including rear climate zones.
Transmission Control Unit (TCU)2.5 hr R&Rsecurity gateway +1.0 hr▸ programming details
⚠️ Controls power seat, heating, ventilation, massage, active bolsters. Basic coding for seat configuration.
Intelligent Light System Control Unit (ILS)0.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Each headlight assembly, integrated
🔧 Xentry Diagnostics
⚠️ DIGITAL LIGHT or MULTIBEAM LED headlights with projection features. Requires coding for adaptive lighting functions and headlight leveling calibration.
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 GLE43 AMG 3.0L Turbo V6 and can vary by trim.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.