2009 Mercedes-Benz C350 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2009 Mercedes-Benz C350
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2009 Mercedes-Benz C350 ProblemsMildew in Heater Box
The heating, ventilation and AC (HVAC) heater box is susceptible to mildew buildup. This can result in a musty odor from the HVAC system, most noticeable when the system is first turned on.
The mass air flow sensor tends to fail causing poor fuel economy and Check Engine light illumination. The engine air filter should be replaced when the mass air flow sensor is replaced; a dirty filter can allow debris to damage the new sensor.
2009 Mercedes-Benz C350 Questionsengine will not turn over. new battery. (1 answer)
nothing happens when key is turned
I did not use the car for 5 days. Just had my A service done 10 days ago. Today, it wont start. All internal and external lights go on, including radio when key is in ignition, but no sound from engine, only light click sound. This never happened before.
It still has the original battery (5.5 ye...
2009 Mercedes-Benz C350 RecallsDriver's Frontal Air Bag Inflator Ruptures And Sprays Metal Fragments
The driver's frontal air bag inflator may deploy the air bag with excessive pressure, resulting in the inflator rupturing and causing metal debris to be sprayed onto vehicle occupants. Dealers will replace the driver's frontal air bag module free of charge to resolve the concern.
The air bag control unit may corrode and cause it to malfunction, resulting in air bags that deploy when not intended, or do not deploy at all in an accident. Dealers will inspect and replace the air bag control unit as needed free of charge to resolve the concern.
The tail lights of the vehicle may dim or fail because of a poor electrical ground connection. Dealers will replace the bulb holders if not previously updated and replace any corroded connectors free of charge to resolve the concern.