Wire colors in those diagrams should be labeled with abbreviations youll be able to understand but just in case you run across a diagram with the orig inal wiring color codes use the wire colors key at left to sort things out by the way color codes for electrical wiring are defined in din 47 002 circuit block schematic diagrams. This might make a good faq article since there are continuous questions regarding the various wiring diagrams and color codes we could also provide a library of the wiring diagrams that have been collected on the forum din wiring and terminal standards provided by im3crazy 3 16 2011 from bosch . It is very good practice to install only factory type of wiring never ever mixing american color methods with din type if you are patching into a existing wire or adding a wire etc on a german vehicle do not use anything but the original wire color codes as appropriate. In the pictures it looks like there are blue and brown wires which are new colors under new colors blue is always neutral and brown is always live other permitted colors for live are grey and black eg in 2 way switched circuits or 3 phase wiring old colors varied a lot the things attached to the wires are connector blocks. Color coding a wire diagram simply focuss on the 5 basic colors of any diagram were not talking about the color of the actual wire were talking about how we color code the wire so we can
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