Mercedes-Benz C240 4MATIC Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercedes-Benz C240 4MATIC
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Mercedes-Benz C240 4MATIC ProblemsDead Battery Due to Failed Seat Control Module
A dead battery can be caused by a faulty seat control module that does not properly shut down. Spilling liquids on the front seats can cause these modules to fail.
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.
Mercedes-Benz C240 4MATIC Questionshow expensive is it to repair the evap line? (1 answer)
The oil light comes on quite frequently to add a quart of oil. Is that normal? Its maybe every 6 wks or so.
leak of ATF / control module