Q: Battery dead after a few days

asked by on

My car has been running great with no major problems. The dashboard isn't showing any lights on. However, the battery keeps getting drained. It works only for a couple of days and becomes completely empty. What could cause this and how can I prevent it from dying out so quickly?

Thanks for writing in about your Mercedes Benz CLK430. This is a common problem as vehicles get older. This type of fault is called a parasitic draw and occurs when one or more component does not shut off when the car turns off thus draining the battery overnight. The most common parts that cause this would be interior lights, seat switches, wiring faults, radio, or a window switch. I would have a qualified technician, such as one from YourMechanic, check your electrical components to diagnose and repair your battery charge issue.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Battery dead after a few days

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car wouldn't start, electronics work

Hello there. Thanks for writing in about your 2001 Mercedes CLK430. There are a few potential causes for this. Most common would be a fuel pump, battery, battery cable, starter, or ignition switch. Any of those parts could be intermittently...

Q: Q: Convertible top not working

The problem could be with the convertible top module, hydraulic system, cables or latches. The diagnostic procedure for your top says to start by checking for diagnostic trouble codes (DTCs) in the convertible top module. Then, the convertible top limit...

Q: Car starts when it wants to.

Hey there. I would start with testing your battery and alternator with a multi-meter. Good batteries hold a charge of 12.6 volts or higher. If the battery is low, try to jump start it. If this starts your vehicle, test...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...