Q7 Quattro V6-3.6L (BHK) (2007)
5. Discoloring of the strand is also a clear indication of permanent operation of the compressor (Figure 4).
Replace the compressor and relay J403 for the self-leveling system.
6. If the contacts resemble those in Figure 5 and the compressor has a working noise similar to a comparable vehicle, replace only the opened relay J403
for the self-leveling system.