2020 — 2023
2.0L (OM654) - E220d Mild-Hybrid Diesel
Diesel
During low-speed maneuvers, listen carefully for any clunking or clicking from the front suspension, as air suspension components or control arm bushings may show wear in higher mileage examples.
Navigate a series of stop-start traffic to ensure the 9G-TRONIC transmission shifts smoothly; any hesitation or 'shunting' between gears is worth noting for a specialist inspection.
Engage the MBUX infotainment system thoroughly while parked; confirm the touchpads and steering wheel controls respond instantly, as electronic gremlins in the control modules can occasionally surface.
Check the engine bay after your drive for any signs of weeping around the AdBlue injector, which is a known area that can occasionally require attention on the OM654 diesel engines.
Consider a proactive transmission fluid flush to ensure the 9G-TRONIC remains smooth for the long haul.
Keep an eye on diesel particulate filter (DPF) health and ensure the vehicle has been regularly taken on open-road journeys to assist with passive regeneration.
At this stage, it is prudent to have the suspension arms and bushes inspected for any play that might affect ride quality or tire wear.
Ensure the digital service history is complete and verify that major intervals were performed by a Mercedes-Benz specialist.
Confirm the auxiliary battery (often hidden in the passenger footwell or trunk) has been tested, as this supports the start-stop system.
Check the condition of the brake discs and pads, as the weight of the E-Class can accelerate wear on these components.
Verify that the coolant and brake fluid have been flushed according to the time-based schedule, not just mileage.
Check that the panoramic sunroof seals (if equipped) are clean and lubricated to prevent any potential drainage issues.
Estimated repair costs if issues arise
If your car features the air suspension system, it is worth remembering that rubber bladders can eventually perish with age. Budgeting for a potential strut or compressor refresh is a wise long-term strategy.
The AdBlue system involves sensitive sensors and pumps. Depending on the car's history, you might eventually need to budget for sensor cleaning or a pump replacement to keep the emissions system running cleanly.
Regular transmission fluid and filter changes are key to the longevity of this gearbox. If this hasn't been done recently, it is a great piece of preventative maintenance to plan for soon after purchase.
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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