The Electrical System problem. 1) cranshaft and camshaft position sensors, timing problems and it has to be replaced this is a common damage in Mercedes Benz 2012 C250. 2) this put in risk my life because it can brake the engine in a highway and the car could be off.
Try cleaning the lens on the key. It would also be a good idea to have the e.i.s. codes pulled at a dealer or equivalent. if problem persists. If the car will not start. try disconnecting the battery and wait approx. 15 min. sometimes that will give you a couple of starts unless it is just a software issue.Now you have to go to the stealer/ dealer order a lock, comes with the housing, lock and original key key. Ask to get the plastic locking cover, and an ign. switch. The next thing is to get the schematic to put the right wire in the right hole, and you're done. Looks that they spliced the wires to install a stereo.Table 1 shows nine common electrical system related problems of the 2002 Mercedes Benz C320. The number one most common problem is related to the electrical system (nine problems). The second most common problem is related to the battery (seven problems). Table 1. Electrical System related problems of Mercedes Benz C320.
Electronic Ignition/Switch System EIS/N73 Defect. A EIS module that has become defective could also be a reason for a “Mercedes turn key nothing happens” situation. Many car owners complain that their vehicle starts fine on mild or hot days, but not on cold days. This could seem unusual, but it is a common occurrence.KhNzxVi. 257 295 54 25 128 279 365 311 141