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2001 Mercedes C class c320 no crank no start??????

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Old 12-14-2023, 09:32 PM
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2001 c320
2001 Mercedes C class c320 no crank no start??????

2001 Mercedes C class 125,000 relay is fine starter is fine crankshaft position sensor is good. The cars been sitting for about 6 months all fuses are good. Oh ya the battery is good too
Old 12-16-2023, 12:53 AM
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2001 c320
Originally Posted by SmittyMBnoob
2001 Mercedes C class 125,000 relay is fine starter is fine crankshaft position sensor is good. The cars been sitting for about 6 months all fuses are good. Oh ya the battery is good too
I didn't know how to thank everyone for their advice and thankfully it's fixed....... It was the battery in the key fob some idiot has a 2032 and 2025 plus they were dead..... LMAO
Old 12-16-2023, 03:52 AM
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2003 C230K Coupe Orion Blue
The fob battery is required for remote locking/unlocking, but isn't required to start the car. The ignition module charges the key inductively. This ensures that one will never be stranded because of a dead fob battery.
Old 01-08-2024, 01:42 PM
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Originally Posted by slammer111
The fob battery is required for remote locking/unlocking, but isn't required to start the car. The ignition module charges the key inductively. This ensures that one will never be stranded because of a dead fob battery.
Yes and I'm back to no crank no start and not knowing where to go now
Old 01-08-2024, 08:00 PM
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So did you end up replacing the starter?

Starters can be rebuilt if you have a local shop. With labour costs these days it's almost easier to just replace the entire unit.

Swap relays if you get a chance. Relays aren't known for failing. The car uses several of the same relay model as the one for the starter circuit. You'll hear a click when turning the key. Might have to have a buddy listen while standing outside the car, as the relays are pretty quiet.
Old 01-08-2024, 08:20 PM
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2001 c320
Originally Posted by slammer111
So did you end up replacing the starter?

Starters can be rebuilt if you have a local shop. With labour costs these days it's almost easier to just replace the entire unit.

Swap relays if you get a chance. Relays aren't known for failing. The car uses several of the same relay model as the one for the starter circuit. You'll hear a click when turning the key. Might have to have a buddy listen while standing outside the car, as the relays are pretty quiet.
I changed out the starter and nothing....
Relay doesn't even click anymore.... Ignition switch maybe?? No codes 2 malfunctions srs and teleaid.... Or maybe moisture on a sam? I haven't got a clue I'm stumped
Old 04-02-2024, 01:03 AM
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I found the problem

Originally Posted by slammer111
The fob battery is required for remote locking/unlocking, but isn't required to start the car. The ignition module charges the key inductively. This ensures that one will never be stranded because of a dead fob battery.
On the driver side under the carpet and the kick panel you'll need a torx to get the screw out is a bunch of wiring for the can and the telecommunication there's a short there and that's what's creating no crank no start it's not the ignition module it's not the starter it's not a fuse it's a connection in there there's green and white twisted wire

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