Newbie needs help with sick SLK200

slksocket

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SLK R170 2003 2ltr
After pressing hazzard switch which flashed twice, instruments died and engine will not crank.
Indicators only work with hazzard switch in (as indicators not all 4 together). At key on only battery
symbol is displayed. Have checked all fuses and K40 all good.
Any help appreciated.
 

Frontstep

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Well start with the basic... a good charged battery, no point in not starting at the beginning.
Then its connections including earth.

Any symptoms leading up to this problem ?
 
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slksocket

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Well start with the basic... a good charged battery, no point in not starting at the beginning.
Then its connections including earth.

Any symptoms leading up to this problem ?

Thanks for reply, battery charged, voltage is good. No warning of failure - car ran fine.
When it occured the car was stationary on my drive with the engine on idle.
I pressed the hazzard switch just to check they still worked when the dash went blank, the engine revs started to rise so switched it off. On trying to restart no cranking. You can hear the fuel pump run, but no other sounds.
Items that still work - roof,horn,windows,heater fan,lights except indicators.
I'm thinking perhaps a failure of the key transponder or Das ?
 

LostKiwi

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Key transponder/DAS wouldn't cause revs to rise.
It needs to be scanned for error codes with a proper code reader that can interrogate all modules (not just a generic reader).
 

Frontstep

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Something like this has been on before stalk, relays, ecu springs to mind sorry can't remember properly
 
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slksocket

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Something like this has been on before stalk, relays, ecu springs to mind sorry can't remember properly
Thanks guys, I have an independent MB workshop within half mile I'll see on Monday if they can scan it. Will post results.
 
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slksocket

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Just an update problem fixed.
Checked all fuses visually, all looked Ok.
Star diags could only connect to main module so was of little help so started again from scratch checked all fuses again with meter and found no 35 blown.
All the above symptoms are caused by the failure this fuse.
Don't rely on a visual check as this cost £40 for the star plus many hours of unneccessary work.
 

John Laidlaw

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Late to the party but welcome
 

Frontstep

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Just an update problem fixed.
Checked all fuses visually, all looked Ok.
Star diags could only connect to main module so was of little help so started again from scratch checked all fuses again with meter and found no 35 blown.
All the above symptoms are caused by the failure this fuse.
Don't rely on a visual check as this cost £40 for the star plus many hours of unneccessary work.


Unfortunately there is an over reliance on Star its great but not for everything.
I have seen Star plugged in for an obviously loose connection (which it couldn't find)
As above start with the basics and I consider fuses as connections.
 


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