I purchased a used 335d from Sandia BMW and the very next day driving up to Colorado, the service engine soon light came on. I called Sandia BMW and both... the salesman I worked with (Rick Herman) and the used sales manager (Fred Badgett) were extremely helpful and promised to cover the cost of any repairs regarding the engine light. I brought the car to Gebhardt BMW in Boulder and Sandia took care of the cost of fixing my newly purchased car. I would highly recommend Sandia because they genuinely care about their customers and if something goes wrong, they will make it right. Extremely satisfied with my experience and I will be returning for more cars in the future. Also, Joseph in the service department is very helpful and enthusiastic about BMWs, and he is great with making sure that your service is performed quickly and correctly. This dealership should be a model for others.