E-Class (W212) 2010 - 2016: E 350, E 550

Chart of relays

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Old 01-28-2016, 08:37 PM
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2010 E550
Chart of relays

Is there a chart of the relays in the W212 somewhere? I'm thinking I had a stuck relay related to my Airmatic system. I swapped it with another one in the trunk, and the issue with the Airmatic system went away, but I'm curious what I just swapped it with. The fuse chart shows the locations of the relays, but they're not identified.
Old 01-29-2016, 08:19 AM
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1999 E300TD
What are the two relay letters??
Old 01-29-2016, 12:48 PM
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Originally Posted by markgm
The fuse chart shows the locations of the relays, but they're not identified.
Rear SAM relay assignments.
Attached Thumbnails Chart of relays-capture.jpg  
Old 01-29-2016, 01:12 PM
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2010 E550
Originally Posted by konigstiger
Rear SAM relay assignments.
Thanks, is there any additional information on what A, B, and G control? I haven't heard the term 'terminal relay' or 'circuit relay' before.

Edit: I guess they might be related to position 1 or 2: http://www.bosch-automotive-traditio...eichnungen.pdf

Last edited by markgm; 01-29-2016 at 01:21 PM.

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