2003 CLK 320 wont crank - nothing happens

300

Asked by Aug 16, 2014 at 12:30 AM about the 2003 Mercedes-Benz CLK-Class 2 Dr CLK320 Coupe

Question type: Maintenance & Repair

2003 CLK 320 wont crank - nothing happens
I have 2 set of keys tried them both but same thing, the steering lock works as I turn
the key to ON - I can hear the Fan go thats about it.
nothing else happen

could it be CPS?
or starter?
fuse?

21 Answers

300

ADD: The battery died so I have a new battery now - the windows / locks etc all work with the remote

4 out of 4 people think this is helpful.
58,535

Try removing your positive cable for a few minute,s,may reset your ecm,all so is there any anti theft light,s on?

2 out of 2 people think this is helpful.
300

Did that already - lights are ok no anti theft

2 out of 2 people think this is helpful.
58,535

If no light,s, may need to check the starter as you said.

1 out of 1 people think this is helpful.
300

there is no clicking or trying to crank/start - its just dead nothing happens when you try turning the key

9 out of 9 people think this is helpful.
58,535

One other question?Has your car battery been weak?This can cause your ecm to loose key memory,

3 out of 3 people think this is helpful.
300

I was travelling got back batt was dead - which I replaced recently with a new one and now this

58,535

or jumped off any one?

300

the first time i tried jumping which did the same - nothing happened so i replaced the batt

1 out of 1 people think this is helpful.
58,535

Thats, it sorry to say this but the only thing you can do is have a mercede,s dealer flash your ecm back to your keys,

58,535

Weak battery,s do this to mercede,s ,

1 out of 1 people think this is helpful.
300

Seriously? i can still lock/unlock the car with the remote also can open the Steering lock

1 out of 1 people think this is helpful.
58,535

Yes key has chip in it,mercede,s did not think about the battery problem fix until 2007,

1 out of 1 people think this is helpful.
58,535

When battery died ,ecm lost it,s memmory of your key,s.

2 out of 2 people think this is helpful.
300

hmm - Im trying to find if I can confirm what your saying

2 out of 2 people think this is helpful.
58,535

Well i should know,i own a 1999 c230,it happen to me twice all ready.And not to add i mechanic on all type,s every day,check it out,then go gety our ecm flashed and you will be riding again.

1 out of 1 people think this is helpful.
300

how much to flash the ECU - can I just take the ECU out give them my key along the VIN

2 out of 2 people think this is helpful.
58,535

Sorry to say but it has to be in car,and it cost me 350 to have it done,but that said,all way,s buy a good brand battery such as interstate to keep from having this happen agian,,,Good luck with it.

1 out of 1 people think this is helpful.
58,535

It ,s is a shame mercede,s waited till 2007 to fix this,i feel forya..

2 out of 2 people think this is helpful.
58,535

Try it,but i think not,your ecm,has lost it,s mind,you have to deal with it.

300

Will this work? 1. Turn the ignition key to the on (not start) position. 2. Press the gas pedal to the floor and hold for five seconds. 3. Turn the key to the "off" position (don't remove the key), then release the gas pedal. 4. Wait at least two minutes for ECU to reset.

8 out of 8 people think this is helpful.

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