Join Date: Dec 2005
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Sounds like a poor earth to the left rear light cluster.With someone sitting in the car and you behind the car,get them to operate the indicators and brake lights whilst you see whats happening.I suspect you'll have a christmas tree effect of the brake lights dimming in time with the indicator.
Currently in Lagdti's garage:
2004 Saab 9-5 HOT Aero and a 2001 Audi A3 1.8 Turbo