How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Lou P. master tech Your Own Question
Lou P. master tech
Lou P. master tech, Mercedes Technician
Category: Mercedes
Satisfied Customers: 4603
Experience:  15 years master certified 100% fix rate and have access to factory radio codes, wiring, and instructions.
Type Your Mercedes Question Here...
Lou P. master tech is online now
A new question is answered every 9 seconds

2002 s500 Mercades battery drain, battery check good

Customer Question

2002 s500 Mercades battery drain, battery check good alternator check good, what cause the drain?
Submitted: 1 year ago.
Category: Mercedes
Expert:  Lou P. master tech replied 1 year ago.

Hello , almost all S class battery drains are caused by the radio or amplifier or telephone module. you will need to have a tech do a parasitic draw test on this. if this is something that you are not familiar with then it may not be a job you want to tackle yourself. let me know what kind of info you need from me and i will do what i can to help . i fix draws all the time lol. Lou P

Related Mercedes Questions