This chapter hopes to cover all of the main aspects of the numerous, cumbersome and complicated electrics in the S2. Audi's wiring practice in the UR quattro was seriously flawed in some areas in comparison to the much more elegant and structured way that current models are wired. The complexity of the S2 wiring is someway between those two extremes so it can be a bit hectic when tracing faults.

Most S2 owners have a look of horror when they first encounter the auxiliary relay panel above the drivers pedals because of the sheer amount of wiring squeezed into that tiny space.

In time, the links in this chapter will get padded out with repair tips, schematics and whatever else needed to unravel the many mysteries of S2 electrics.

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