Help Multiple error messages mercedes independent is stumped !!

monet208

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Hi
Mercedes C180K coupe 2003
On starting mutiple error messages come up SRS ,ERS, alternator -visit workshop light sensor,coolant-visit workshop
Been happening on/off for months - otherwise car dives fine and done a few long trips with no problems
These messages go off after a few minutes but light sensor and coolant remained so went on STAR at independent mercedes who replaced light sensor and coolant fan ,faults cleared but they both come on again
Ocassionally wiper and windows stop working but turn ignition on/off they work fine
Alternator tested and is fine and we have no battery drain
Independent put it on STAR again today and said front SAM ok but still getting coolant,light sensor and alternator fault messages- also said slight flickering on instrument cluster but I cannot spot that
Independent now advise going to mercedes dealer as may heve been up to date STAR
Obiviously being driven mad by this !! |And being an OAP do not have a bottomless pocket so please any advice welcome
 

television

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I can only guess that the SAM is faulty and it cannot find these things till the priority buses have died down, any water around would be a clue maybe
 
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monet208

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Thanks television

Thanks for the SAM suggestion -the strange thing is the independent said it seemed ? ok but will check the water clue myself
Before I get the SAM replaced I have been told by an owner it may be
"can system all corroded at terminals in side near foot well "
Not sure what can stands for but assume its some wiring somewhere ?
If I can check these out before getting the SAM replaced would you be so kind to tell me where to look for these since " in side near foot well " is a little vague for a non mechanic !
 

Alex Crow

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W169, W124, w202, W203, KTM 250 EXC, VW T25 camper and a Polo in a pear tree
If it were corroded CAN wires, any good specialist ought to have found it by now.

My guess here might be front SAM too, but internet guesses are hard!
 


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