2015 — 2018
2.0L (M274) + Electric Motor - C350e Hybrid
Plug-in Hybrid
Transition from electric to combustion engine | Description: Listen for any hesitation or clunking during the hand-over between the electric motor and the 2.0L petrol engine; smooth transitions are a sign of healthy software and engine mounts.
Assess air suspension leveling | Description: If fitted, park on a flat surface and ensure the car remains level; uneven height suggests potential air strut leaks, which are common to consider in European vehicles of this age.
Check the high-voltage battery range | Description: Observe the electric-only range on the dash during the test drive. While batteries naturally degrade, a significantly lower range than the manufacturer's claim is worth discussing regarding past charging habits.
Inspect the 7G-Tronic transmission | Description: Test for smooth gear changes in both 'Comfort' and 'Sport' modes. Any surging or harsh shifting may indicate that the transmission fluid service is overdue.
Usually marks the point for a thorough transmission fluid and filter service.
A common time to inspect the auxiliary cooling system and potential wear on suspension bushes.
The period where spark plugs and, in some instances, engine mount inspections become standard practice.
Verify the full digital service history to ensure the Mercedes-specific hybrid software updates have been applied.
Check for any residual moisture in the rear taillight assemblies, a minor but known quirk in early W205 models.
Inspect the condition of the brake discs and pads, noting that regenerative braking often helps them last longer than standard combustion cars.
Confirm the 12V auxiliary battery health, as these can fail unexpectedly and affect the car's electronics.
Ensure all charging cables (Type 2) are included and undamaged, as replacements can be a surprise expense.
Estimated repair costs if issues arise
If the vehicle is equipped with Airmatic, the air struts and compressor may eventually require attention as they age. It's wise to keep a contingency fund for these systems.
The M274 engine produces significant torque; worn mounts can lead to cabin vibrations. Replacing these is a common maintenance task for W205 owners.
While rare to fail entirely, should the battery reach the end of its useful life, you would need to budget for a specialized repair or replacement through a certified Mercedes-Benz technician.
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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