Mercedes-Benz S-Class Lemon Law

With three failed repair attempts for a suspension system that directly affects vehicle handling and safety, your S 580 has a strong lemon law case under the Song-Beverly Act. You are entitled to either a full repurchase refund or a replacement vehicle of equal value. Given the high purchase price of the S-Class, manufacturers are often motivated to settle these claims rather than risk a trial where civil penalties could double the damages.

While exceeding 30 cumulative days out of service for warranty repairs creates a rebuttable presumption that your S-Class is a lemon under the Song-Beverly Act, it is not automatic. Mercedes-Benz can attempt to rebut this presumption by showing the delays were caused by your unavailability or other factors outside their control. However, 45 days provides a very strong basis for a claim, and the manufacturer bears the burden of overcoming the presumption.

The Song-Beverly Act does not impose a cap on the vehicle's purchase price for lemon law claims, so your full purchase price is used to calculate the refund. The refund includes the full purchase price minus a mileage offset, plus all incidental costs like registration, sales tax, and finance charges. For high-value vehicles like the S-Class, the civil penalty provision (up to two times actual damages) can result in substantial additional compensation if the manufacturer acted willfully.

Under the Song-Beverly Act, the primary remedies are repurchase or replacement rather than diminished value claims. However, a permanently disabled feature like rear-axle steering constitutes a substantial impairment of the vehicle's value and functionality, which supports a full lemon law claim. If you prefer to keep the vehicle, you may negotiate a cash settlement with Mercedes-Benz that accounts for the lost functionality and diminished resale value.