The joys of mass production. No brand is safe from this stuff...The brushes would stick on the alternator after a few weeks of not using the car, give the Alt a swift hit and it would un-jamb them, usually the sign of warn brushes. Went to dismantle the brush box to see if they were really worn as the alternator is about 3 years old but only has 30 000km on it. I later found the hold down bolt for the brush box had come loose under the cover, but just as well because someone had crushed a wire when they originally assembled the alternator from new.
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