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Old 11-07-2010, 12:09 AM
aby k aby k is offline
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Default Advice Needed...key wont turn

Hi everyone New on here and need some advice....

i have 2001 Mercedes C220 cdi auto 84k, the remote key unlocks the car, mileage display lights up but when i put the key in the ignition nothing happens it doesn't click or turn. battery is ok the headlights turn on & off, remote central locking works on both keys. I've had a booster on the battey to give it a kick start but still nothing. the car was running fine prior to this, i'd only parked it 10 minutes before the problem occured.

Any help & advice will be much appreciated.

thanks in advance.
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Old 11-07-2010, 12:17 AM
dieselman dieselman is offline
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That sounds like the EIS (electronic ignition switch) has failed, if so you need a new EIS and a green key to program the key too it.
It would be worth making sure the power and CAN connections to the EIS are good before ordering a new switch.

Have a STAR test to be sure.
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Old 11-07-2010, 08:16 AM
wemorgan wemorgan is offline
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I had a similar situation once parked outside a friend's house, trying to start the car for 5 minutes to no joy. Eventually saw that the gear was in 'D'. Moved it to 'P' and the engine came to life.

I'm sure you're not as silly as me, but thought I'd share this incase it's the solution.
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Old 11-07-2010, 09:45 AM
rapide rapide is offline
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good point! sometimes the silly or to obvious are the answer, as the AA / RAC men say, start with the easy stuff first! you never know! before you dig deeper!
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Old 12-07-2010, 05:26 PM
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The transponder coil can fall off in the key and the locking still works when this happens
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Old 12-07-2010, 08:54 PM
aby k aby k is offline
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Cheers guys for responding, car is definatley in park, I left the car outside a mates house as I'm away with work but he went to the car last night had a fiddle with key & got it to turn!!!! Anyway he parked it on my drive for me but when my wife tried the same thing again key wouldn't turn. Definatley sounds like something with the ignition.
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Old 12-07-2010, 09:04 PM
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If this is a 210 then the EIS switches can fail,, do you have a spare key
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Old 13-07-2010, 06:12 PM
aby k aby k is offline
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It's a 2001 51 reg c220 cdi not know what model, yeh I've tried the spare key & that doesn't turn. I spoke to my friend he tried to start the car again and it wouldn't. So back to square 1.
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Old 13-07-2010, 06:41 PM
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Then the EIS switch on the way out
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Old 13-07-2010, 06:58 PM
aby k aby k is offline
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How can I get the car into neutral from P to get the car recovered to a garage.
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