The Mercedes-Benz W203 C Class EIS / EZS ignition switch is the main component of a very complex and secure drive authorisation system and due to its sensitive electronics it can easily become damaged. Often causing no dash lights or start when turning the key in the ignition or sometimes the key won’t turn at all. A problem that Mercedes-Benz owners may face is the key no longer turns in the ignition. This issue is often caused either by a defective key, bad shifter module, a failed Electronic Ignition Switch (EIS) also known as the EIS-EZS or a bad steering lock module (ESL). This problem can affect various Mercedes-Benz models including E-Class, S To start the diagnostic process, check your battery voltage before and after turning the key to the "start-position". Before turning the key to position-III, the battery voltage should be around 12.5V or above. Place the probes of the voltmeter on the battery terminals and not on the connectors of the battery cables. First connect red cable to the positive terminal of your C300’s dead battery, then to the positive terminal of donor battery. Next connect black cable to the negative terminal of donor battery, then to the bare metal in the engine bay of your C300. Start the donor vehicle and then your C300. Remove the cables in reverse order. Well the problems continue with this 2002 W220 S320 , on Sunday the Ignition Key stopped working, it flashes when I press the buttons but will not turn in the ignition nor does it operate the central locking, its like the car does not see the key? Have checked the main car battery and that is If your Mercedes-Benz E320’s key won’t turn, check to see if the transmission is in Park. Many models will prevent the key from turning if the car isn’t in park when turned off. Make sure your car’s parking brake is enabled before you do anything else. This should prevent the car from rolling away if the transmission lock fails (or your Y6JTvoL. I have the same problem this morning in my 2001 E320. The remote key unlocked the car, but the key will not turn in the ignition. I jiggled the steering wheel, jiggled the key, checked the fuses, and jumped the battery. Nothing has worked. I talked to an independent shop, and they think the problem may be the ignition switch. 2011 Mercedes-Benz ML350 53,500 mi, Visitor. Turn key and intermittent no crank/no start, attempt 2/3/4 times before it cranks and starts. Service visit to MB dealer charged $430 labor & $545 for EIS/ignition starter switch replacement. WOW! 2011 Mercedes-Benz ML350. 2002 SL500, 216 CL500, all fully loaded. Dec 14, 2008. #2. You need to change the ignition switch,,and this can be ordered to match you cars keys etc. They are easy to remove as long as the key still turns,,once it stops turning you can be in trouble as they can only be removed in Key1. When you get the new one I can give you a paper on how to Well, for those of us who have had the radio not work through the ignition switch (meaning you had to turn it on and off with the radio switch and not the ignition switch), I found a solution! Replace the OEM radio! I transferred my lifetime Sirius account to a new Alpine head unit and the local shop hooked it up through the Bose amplifier and 2008-2015 Mercedes-Benz C-Class C300 W204 Ignition Switch Repair or Replace Guide YOUCANIC 36K subscribers Subscribe Subscribed Share 22K views 2 years ago 2008-2015 Mercedes-Benz 10099 posts · Joined 2015. #3 · Jul 22, 2015. Tod in google search put in ---- Document Buzz then on the right pane click on Mercedes Benz and if they ask for password its - autoobuzz.com. And another way to see diagrams is Google search, then on the search page , look to the top right hand side , and click on immages put you question in

mercedes c class ignition switch problems