2020 — 2024
2.0L OM654 DE20 I4 - GLE 350 de Plug-in Hybrid
Hybrid
While on a stretch of flat road, gently accelerate and listen to the transition between electric and combustion modes. | Note: It is worth ensuring the handover between the OM654 diesel engine and the electric motor is seamless; slight hesitations are sometimes noted in higher-mileage examples.
Check this by navigating the MBUX infotainment system thoroughly while stationary. | Note: The dual-screen setup is feature-rich, but it is wise to ensure all menus respond promptly, as software glitches can occasionally arise.
During the drive, pay close attention to the ride quality over uneven surfaces or speed bumps. | Note: If the vehicle is equipped with AIRMATIC suspension, it is beneficial to listen for any unusual hissing or lag in height adjustment, as complex air systems benefit from regular monitoring.
Examine the charging port area for any signs of corrosion or loose fittings. | Note: As a plug-in hybrid, the integrity of the charging port is essential; ensuring a secure connection is a good habit to prevent future charging interruptions.
Usually a major service interval involving transmission fluid changes and hybrid battery health checks.
A common point to review the condition of the diesel particulate filter (DPF) and the EGR system.
Consider having the suspension air bladders inspected if the vehicle is fitted with AIRMATIC.
Ensure the AdBlue tank is topped up as per the dashboard prompts to keep the emissions system running cleanly.
Keep the service book up to date with an official Mercedes-Benz dealer or a specialist experienced with PHEV systems.
Check the tire pressure and alignment regularly, as these heavy SUVs can wear through tires a bit faster than standard sedans.
Give the MBUX system a chance to update over the air if a software prompt appears on the screen.
Charge the battery fully at least once a week to keep the hybrid system in optimal health.
Estimated repair costs if issues arise
If the vehicle is fitted with air suspension, it is helpful to keep a rainy-day fund. Should the air struts or compressor require servicing later on, it is a specialized job.
To ensure long-term efficiency, your specialist may eventually need to inspect the battery cooling fans or thermal management sensors. This is standard housekeeping for high-end PHEVs.
Given the hybrid nature, the diesel engine may stay off for long periods. If you don't take regular long trips, the DPF might eventually need a forced regeneration or cleaning.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer