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Hi,
A friendly Russian copied the Merc fuse/relay front SAM control unit details as they apply to my car, so that helps but as an old wrinkly I am still confused. The relays are all listed with single letters, e.g., "N", but the OBD2 results talk of "N10/1kl" as if there are several relays? Let me know, please!

So far I have pulled one relay and checked. Dr Google tells me the coil is between pins 86/85 and should read 80-90 Ohms, mine reads 72 Ohms, 30/87A is always closed and 30/87 is always Open and should read OL (overload) Ohms. But I will remove the earth lead for further checks!
 

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Discussion Starter #22
This thread is getting old. It is so nice to see it helped some people fix their problems!

Rgds
Oddemann
 
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