![]() Is there any way to completely by-pass the immobiliser and do away with the bloody thing. But on each second attempt the car then started fine. There were warning signs this week, three times I got in the car this week and turned the key ignition came on OK but then the car wouldn't start on first turn of key. Part number of the ignition unit is 210 545 02 08 Q2ĭon't understand how its been fine for well over a year and then just goes again same as before. I can fit the new ignition switch myself as its already all taken apart again just need them to tell me what part is actually the problem and how much for them to supply and recode it if need be. This could be an expensive fix! Will Merc diagnose the problem for free? and tell me what parts I need and how much for them to recode the key? Or do they charge me to tell me what part I need? © 2023 Google LLC For MORE great Auto Repair Videos, visit us at Video on how we diagnosed a 2000 mercedes benz c230 that cranks but does not st. If all other emissions systems are functioning properly, completing the drive cycle above should set or make ready (complete) your Mercedes Benz C230. After 20 minutes, turn engine and ignition OFF. If not I'll have to get the AA to take it to Mercedes, as the steering lock is on and I can't move it. A/C, radio, lighting, and defroster must be off. Just hoping it fixes itself again like last time, when I look at it again tomorrow. ![]() I then tried to short out the starter motor, this turns the engine over but does not start the car is immobilized.Īlso the key fob is no longer locking / opening the doors, tried new batteries. I took it apart again and managed to get the key to turn and the ignition to turn on but the car would still not start or turn over. The ignition is not recognising the key and its not making the normal sound of the relay lifting up the little plastic catch thing inside which then allows the key to be turned. Its been perfectly fine all this time until today. To me it looks like some parameter or the 'condition' of the ECU is not being fulfilled.So more than a year later, today the car has done the same thing again and I am unable to start the car. No problem with the CAN network either since everything else is working. ![]() ![]() Scratching my head since yesterday to figure out why is the ECU not obeying direct orders. When i put the key in the ignition, it doesnt turn and the car wont start. There is no problem with any connections.Īfter all these investigations, my observation is that the relay is OK but is not being actuated by the ECU. We have all possible equipments and I have checked for all the continuities. If you pm me the wiring diagram, perhaps I can have a look as well. The circuit does not work => Doubt the trigger/ECU/Relay/Sensor or wiring damage/loose connection to earth. The circuit works/Bulb lights up/current flows => earth connection is corrcetly triggerred. If you do not have a multimeter, you may use a crude bulb+fuse arrangement and wire it instead of the starter motor. Hello, I recently purchased a 2000 C230 as a daily driver and the battery has gone dead. You can do it the traditional way using the multimeter.ġ Once the ignition is on, check if the circuit from B+ to the earth is complete.Ģ You may use the Amm clamp or the continuity tester to do that. 2000 C230: course with a dead battery the electric switch.unlocks.
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