More often than not, well-known parts stores misinform customers. One of the most common misdiagnosis for Volvos is that a new catalytic converter is necessary because an O2 code setting is off or the check engine light is on. This is a time consuming and expensive mistake. To accurately diagnose a problem with your Volvo, more is required than reading codes from an onboard computer. Our facility is staffed with highly trained and certified Volvo technicians -- they've heard and seen the results of bad diagnoses and bad business practices. When you're looking for a trusted Volvo mechanic, click here to get the right diagnosis for your Marin Volvo in Marin County.