I enjoy my 2007 S40 and purchased it due to extended warranty. I have had the same repetitive problems with "bad batteries" twice in
3 years. Volvo has done nothing to identify the problem other than make me pay for new batteries. Since the original was under manufactures warranty the replacement's warranty was null and void, therefore the bills on me. Manufacture did nothing to further look into problem, or recognize the product default. I am sure I will be reposting again in another year with the same issue! Buy with caution!