1999 s320 mercedes benz check engine light

Asked by Mar 10, 2012 at 12:24 PM about the 1999 Mercedes-Benz S-Class S 320 LWB

Question type: Maintenance & Repair

i left my headlights on and battery went dead i had AAA come and give me a jump i drove the for 20min to charge it the next day my radio wouldnt come on my windows would slowly come up and at times wouldnt at all when i drove it out of the drive way my check engine light came on i check my gas cap and it was secure please help with what to do thanks

2 Answers

1,695

Sounds like you have some blown fuses. That happens sometimes when the battery is being boosted. Recommend the boosting vehicle shut off the engine befor hooking up. The radio will have to be coded to come back on. Have the alternator tested as well. Could explain windows moving slowly.

3,005

Check your engines earthing straps for tightness and corrosion, P.s try to avoid boosting the battery direct on this vehicle, there is a boosting point point under the bonnet usually on the left hand inner fender. it is a black plastic matchbox sized box with a '+' in red on the flip up lid; connect the positive lead here and the negative lead to an engine earth point.

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