Hi guys. I bought used Mercedes benz C class. Problem was with start a car. I use a key and unlock car. Put key at position 1 lights in instrumental cluster is ready but if i want to start up turn key in position 2 to start engine, but nothing happend. Pull key out and put in back, do a same thing engine start normaly. After drive once i tested with key 10 times and every time engine start normaly. After 30 min car stay at parking and try to turn on engine same problem. I try change a battery at key but same problem. Did anybody have same issue with start engine? Thx

Comments

First I would check the battery voltage after the car is parked. It may hint to a parasitic current draw. Hence the reason why you can't start the car.

What troubleshooting have you done so far? Do you have any codes?

baterry was at 12.3 V when is parked. My options turn odf battery issue because first time doesnt start, pull out key and back do same operation to turn on and car turn on from second chance. I thing problem was at key ignition, something ELZ EIS i dont know i found some people who repaired. Last time i turn on diagnostic for other problem on car and thay found me only 1 issue, issue of sensor of temperature at exehaust system ECU E8 code P0471

baterry was at 12.3 V when is parked. My options turn odf battery issue because first time doesnt start, pull out key and back do same operation to turn on and car turn on from second chance. I thing problem was at key ignition, something ELZ EIS i dont know i found some people who repaired. Last time i turn on diagnostic for other problem on car and thay found me only 1 issue, issue of sensor of temperature at exehaust system ECU E8 code P0471

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