barkes and engine acting wierd

[mr-dentist]

Hi Guys,,,

After adding a sound system to my E200 Wagon,, the engine started to act weird as there isn't fuel inside and the brakes sometimes stops working ,,
,i disconnected all the sound system wires trying to solve the problem but it still exists ,, i thought that the battery need to be replaced but i am not sure


so please advise me what to do

if the battery needs to be replaced what kind? as i want use my sound system

thanks guys

[ohlord]

watts?who did the work?where did you tie into power for the system?sounds like you are shorting out to some other systems in the cars operating system.The mercedes is very temperamental in that aspect.So you need to find the invasion into the wires and hook it up to a clear power supply.The ecu on these cars is tied into the radio,the defroster the brakes the climate control the transmission....................you mess with one and dont know what you are doing you can end up with the problem you have now.