Dead cluster 2005 clk320 convertible

Jaffa1965

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Since my instrument cluster came up low voltage,I replaced battery but the instrument cluster now, no longer powers up, and the indicators no longer work along with soft top or folding mirrors.
Any help or advice appreciated
 

mioba

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Did your battery throw some big sparks when you connected it?
 
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Jaffa1965

Jaffa1965

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It did several times
 

V6Matty

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Fuse checking time now then, sparks are a good indication of power spikes which Mercedes really don’t like
 
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Jaffa1965

Jaffa1965

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Pulled fuses all good.
 

mioba

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Then look at the SAMs

sparks are a big no no
 
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Jaffa1965

Jaffa1965

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Got it booked in for a diagnostic, as I don't have the equipment to investigate electrical equipment
 
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Jaffa1965

Jaffa1965

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After being taken for diagnostic, found the cat isn't communicating with diagnostic equipment,
 

mioba

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What diags machine did they plug in.
Was it a general garage, merc or a merc specilaist
 
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Jaffa1965

Jaffa1965

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It was a general garage, I have found a merc specialist with star equipment so booked in for 20th.
 
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Jaffa1965

Jaffa1965

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Have had report back and instrument cluster microprocessor is fried ,is it possible to get a 2nd hand one programmed to work in car
 

Naraic

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I was able to put a used one in my car. Plug and play...but did had to get someone to transfer the mileage from the old one.
 
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Jaffa1965

Jaffa1965

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I was able to put a used one in my car. Plug and play...but did had to get someone to transfer the mileage from the old one.
OK that sounds encouraging
 
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