After i turn off engine clock stops working when i start the car after a wile the clock start re siting it self
Hi Aamer, Salaam, When the vehicle has the ignition switched off the visible readout is also turned off but power feeds the clock memory. Once you restart the vehicle the visible read out is illuminated and the figures become visible. If however the clock needs to be reset each time you start the vehicle, that means that the power feeding the memory of the clock has failed, which usually means a broken cable or a bad contact. Regards and Shalom John
SOURCE: 2007 mercedes s550 turn key nothing happen new
Hi,
Do you have another key?
If yes, try with another key.
If the same problem persists with the new key, its unlikely to be a key issue. The starter system is fairly complex
& needs diagnosing on a diagnostic tool such as Mercedes STAR
diagnosis.
The EIS (Electronic Ignition Switch) reads the key
information & sends a signal to the engine ECU to start (assuming it recognizes the correct key), the ECU then sends a signal to the starter
to start the engine. The problem could be anywhere in between these
components.
The EIS is a fairly common part for failure but this
needs to be checked for fault codes & actual value readings to check
the status of the switch.
I would take it back to the dealer for
them to investigate as soon as possible as there is a chance it could
fail completely leaving you in a stranded situation.
Let me know,if needed further assistance.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!
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