I recently replaced the battery on my 2002 c320. Once i did that, the radio does not function at all. The only thing i see is a small red light blinking on it.
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it's sound like you have a bad alternator. This usually recharges your battery when it functions properly but your battery would lose power if the alternator is not working anymore. Once replaced, you shouldn't have this problem. Please check with autozone or car repair company to confirm this.
That red light is on many vehicles and does not drain a battery that fast. You probably have another draw on the system. I recently had a car that the battery would go down in a few days, found out it was coming from the Onstar system malfunctioning.
Had the same issue on 2002 c320 . look at the fuse chart ,find out the fuse # that operate the radio and the cigarette lighter , you have three fuse boxes, engine compartment, driver left knee and trunk on left .find the fuse b compairing the char to the box , replace the fuse . DONE
A/C is protected by fuse on battery fuse block under black cover on top of battery.
These 30amp GREEN fuses burn out the holder. Check for burn and melting . Jumper Battery RED to individual small RED wires with another '' in line fuse '' of 30 Amp...obtainable from most car parts stores.
I have experienced many electical demons with all my British cars. The nav units can and do fail. I had a goofy one this summer and the only way it got fixed was to replace it. The module not the head unit
It is highly likely that the radio will have lost its security code whilst being disconnected from its power supply (your battery).
Any local dealer will re enter your code for you for a small charge unless you have the code stored in your radio user guide in which case you can re-enter the code yourself.
Here is the wiring info for your radio. I have some other wiring diagrams but did not see anything related to your ac. Hope it helps and let me know if you want the other wiring diagrams. Also once you know what these wires are then you will be able to tell what wires are not related to your radio and might be able to figure out which wires are causing your other problems?
Battery WHITE/YELLOW (+) RADIO HARNESS Accesory WHITE/RED (+) RADIO HARNESS Ground BLACK (-) RADIO HARNESS Illumination RED/BLACK (+) RADIO HARNESS Dimmer RED (-) RADIO HARNESS Power Antenna YELLOW/WHITE(+) RADIO HARNESS Amp Turn On YELLOW/WHITE (+) RADIO HARNESS LF Speaker (+) WHITE LF Speaker (-) ORANGE RF Speaker (+) YELLOW RF Speaker (-) BROWN LR Speaker (+) RED LR Speaker (-) GREEN RR Speaker (+) BLUE RR Speaker (-) BLACK Amp Location MOUNTED TO BRACKET IN RIGHT SIDE OF TRUNK Steering Cntrls YES Speed Cntrl NO Radio Security YES
all alarms have disable function usually located down underneath the driver side, look for a small toggle switch or momentary switch, turn the key to the on position , click the switch once or twice to the small red l.e.d light stays on constant.
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