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: 4064
Experience:  15 years master certified 100% fix rate and have access to factory radio codes, wiring, and instructions.
27644750
Type Your Mercedes Question Here...
Lou P. master tech is online now
A new question is answered every 9 seconds

Took out the battery and reconnected, now it won't turn on.

Customer Question

Took out the battery and reconnected, now it won't turn on. Only lights are working, is this a EIS shortage?
Submitted: 1 year ago.
Category: Mercedes
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Lou P. master tech replied 1 year ago.

Hello, why did you take the battery out ? You did not accidentally hook up the battery backwards did you ? Make sure the posts are tight and you cannot twist them. What happens when you turn the lights on and then try and start the car , do the lights stay on or do they go out ?

Customer: replied 1 year ago.
Lights comes on then dies right after, also the message with "turn on the ignition else the system will shutdown in 3 min"
Expert:  Lou P. master tech replied 1 year ago.

Ok that tells me that either the connections are poor or the battery is no good. Try checking the connections

Customer: replied 1 year ago.
If it is the EIS, what shouldn't work? Able to turn the key all the way?
Expert:  Lou P. master tech replied 1 year ago.

If it's the eis everything will work in the car as far as door locks , trunk , radio , lights . But when you insert the key it will not recognize the key and will not release the switch to turn it and it will not release the column lock

Customer: replied 1 year ago.
Then it's the EIS then, because everything else works but like you said the moment I insert the key to ignition nothing happens
Expert:  Lou P. master tech replied 1 year ago.

Do you have more than one key ?

Expert:  Lou P. master tech replied 1 year ago.

Another possibility is there are prefuses in the front ju I start point in the engine bay. If a fuse blew it would give you the same results.