One problem related to battery cable has been reported for the 2012 Volvo C30. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Volvo C30 based on all problems reported for the 2012 C30.
On January 21, 2016, my Volvo C30¿s faulty factory-installed, blemish-free, windshield leaked which permitted water to flow down the a pillar and into the car¿s electronics. As a consequence, the car became quickly debilitated because of electrical failure. Smoke billowed from the engine compartment before the battery cable was quickly removed. On January 21, 2016, the C30 was towed via flat bed truck to Volvo of dallas for repair. The courteous and knowledgeable maintenance technician, kenny, immediately identified the problem as a leaking windshield and stated that ¿this is a known problem in Volvos. ¿ he stated, the ¿sealant/primer may separate causing a leak. ¿ Volvo of dallas held the car for a week during replacement of the leaking windshield. I requested a full inspection. Apparently, that was completed. The 4 year warranty is due to expire soon. I do not trust that this car, which now has an electrical ¿history,¿ is any longer in the careful and meticulous condition in which I have always kept it prior to the leak. My research online and through other resources informs me that the leaking windshield is a known safety issue in later model Volvos.