15th February 2020, 02:16 PM
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Senior Member
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Join Date: Nov 2013
Posts: 1,142
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VCDS or decent diagnostic that can see what is going on. This can also test the compressor and tell you the output. There is a label file on here specifically for that.
Are the suspension lights lit up on the dash?
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2008 (facelift) S8 with B&O, ACC, glass sunroof, reversing camera, front and rear heated seats, ceramic brakes, homelink, electric side and rear blinds, ski load through, heated fan washer jets, remote boot closing, de-flapped manifold, fridge, umbrella holder 
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