2009 Mercedes-Benz E 300 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2009 Mercedes-Benz E 300, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Electrical150.0%
- Suspension150.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ E300. WHILE PARKED, THE BRAKE WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT INSPECTED THE VEHICLE AND NOTICED THAT THE WIRING HARNESS WAS OVERHEATING ON THE PASSENGER SIDE, CAUSING THE CIRCUIT BOARD AND WIRES TO MELT. THE DRIVER SIDE HAD A BLACK HOLE DEVELOPING IN THE CIRCUIT BOARD. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTICS. THE TECHNICIAN STATED THAT THE WIRING HARNESS AND CIRCUIT BOARD WOULD HAVE TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 40,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
HAD A SPRING PERCH FAILURE ON THE FRONT LEFT SIDE WHILE I WAS REVERSING OUT OF MY DRIVEWAY IN THE MORNING. THE SPRING FELL ON THE GROUND AND THE BODY OF THE CAR RESTED ON THE WHEEL. MY LOCAL MECHANIC DIAGNOSED THE ROOT CAUSE AS RUST WHERE THE PERCH ATTACHES TO THE FRAME.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .