2023 — 2026
2.0L (OM654M) - E220d Mild-Hybrid Tech
Diesel
Spend a few minutes in slow-moving traffic to ensure the 9G-TRONIC transmission shifts smoothly; if you notice any jerky gear changes, it is worth asking to see if the transmission fluid has been serviced recently.
Toggle through the MBUX infotainment screen and ensure the touch controls on the steering wheel and the central display respond instantly, as software glitches can occasionally occur in these high-tech cockpits.
Before turning the engine on, inspect the panoramic roof seals and the headliner; in cars of this age, it is common to check for any signs of dampness that could indicate a minor drainage blockage.
Listen carefully when starting the engine from cold; as this uses the OM654M mild-hybrid system, the transition between the electric motor and diesel engine should be seamless and quiet.
Recommended interval for automatic transmission fluid service to maintain optimal shift quality.
Suggested point to check the auxiliary battery health for the 48V mild-hybrid system.
General time to start monitoring the Diesel Particulate Filter (DPF) efficiency, especially if the vehicle has been used for mostly short city trips.
Prioritize regular engine oil changes using the specific low-ash synthetic oil required for the OM654M engine.
Keep an eye on the AdBlue levels, ensuring you top it up before the warning light appears to keep the emissions system happy.
Check your tyre tread patterns; these cars have plenty of torque, which can lead to slightly faster rear-tyre wear.
Ensure all software updates are performed by an authorized service centre or specialist to keep the MBUX system running smoothly.
Periodically inspect the underside of the vehicle, particularly the suspension bushings, to maintain that signature Mercedes ride quality.
Estimated repair costs if issues arise
While these systems are robust, like any high-tech battery, they may eventually need replacing as the car ages. It is wise to have a bit of a buffer set aside for the long term.
If your model features Airmatic suspension, the airbags can naturally lose elasticity over time. It is a good idea to consider this a potential future maintenance item.
As the vehicle logs higher kilometres, the sensors in the emissions system may require attention to ensure you continue to pass Warrant of Fitness checks without issues.
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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