Volvo XC90 T6 Transfer Case Failure
The Haldex AWD transfer case on first-generation XC90 T6 develops oil pump wear at high mileage, causing vibration on cornering and eventually binding on tight turns. Haldex filter and oil service every 30,000 miles is critical. Filter service costs £80-150; neglected units require replacement at £600-1,200.
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