2010 — 2016
E300 3.5L V6
Petrol
When cold starting the engine, listen closely for a momentary rattle. In cars of this age, it is worth observing if there is any timing chain tensioner noise, as these V6 engines sometimes benefit from a preventative check.
While driving at low speeds, gently turn the wheel lock-to-lock. Note if there is any stiffness or humming, as the power steering pumps on these units can sometimes show their age after high kilometers.
During your highway drive, engage the cruise control and check for any 'shudder' under acceleration. It is common to consider the condition of the torque converter lock-up clutch, which can occasionally exhibit minor vibrations as they wear.
Before your drive, manually cycle through all seat and mirror adjustments. The W212 is feature-rich, and it is helpful to verify that all electronic comfort modules are responding promptly to inputs.
Usually marks the time to review the suspension bushings and engine mounts for any signs of perishing.
A standard point to ensure the 7G-Tronic transmission has received a fluid and filter service if records are unclear.
Consider having the air suspension bags (if equipped) inspected for any minor leaks or compressor fatigue.
Verify the service book shows consistent oil changes with high-quality synthetic lubricants.
Confirm the panoramic sunroof tracks have been cleaned and lubricated to prevent sticking.
Check for any signs of moisture inside the tail lamp assemblies, which can sometimes occur on pre-facelift models.
Ensure all recall notices regarding the airbag modules have been addressed through a local Mercedes-Benz agent.
Inspect the cabin air filter condition to ensure the climate control system remains fresh and efficient.
Estimated repair costs if issues arise
If your car is fitted with air suspension, the rubber air bellows can eventually become porous over time. You might eventually need to budget for a replacement strut or compressor service to maintain that signature smooth ride.
If the gear shifts start to feel less crisp than when new, it is helpful to consider a service of the transmission valve body. This is a common maintenance item for high-mileage 7G-Tronic gearboxes.
Over the years, these rubber mounts can compress and harden, leading to increased vibration at idle. It is a very satisfying fix that significantly improves the refinement of the V6 engine.
Noticed something inaccurate or missing?Suggest an edit→
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