2003 Mercedes-Benz C320 4MATIC Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Mercedes-Benz C320 4MATIC
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2003 Mercedes-Benz C320 4MATIC ProblemsBroken Stepper Motor Actuating Arm May Cause Clicking Noise From Behind Dash
A repetitive clicking noise from behind the center area of the dash panel is usually caused by a broken stepper motor actuating arm. The actuating arm controls the direction of air flow in the climate control system. Disassembly of the center console will be required to access and change the broken arm with the updated, reinforced part.
The SRS (airbag) light can come on if liquids are spilled into the seat belt buckles, or if the liquid pools underneath the seat and gets into the electrical connector for the seat belt pretensioner. Damaged components will require replacement to restore proper airbag operation.
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.
2003 Mercedes-Benz C320 4MATIC QuestionsLow Voltage Turn of consumables (1 answer)
Just started having the indicator of Low voltage turn of consumables. Is this a bad battery or alternator?
gas cap not closing c320
what type of mobile oil do i use?