My car had the same symptoms and were caused by a faulty aftermarket alternator that had been fitted to the car a few months before I bought it. If your car still has the original Volvo alternator you can exchange it for a rebuilt one for around £110-£130. Multimeter won’t show any anomalies
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MY2010 XC90 SE (M66-manual) Magic Blue (467) Sold
MY1997 850 GLT (62,000 miles) Silver Sand (419)
MY2005 V70 2.5T (66,000 miles) Willow Green (471)
Volvo 850 GLT website
Last edited by 4x4; Jan 15th, 2024 at 09:50.
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