Well, I will like to start with the fact that Darian (the representative) was extremely professional, however, they overcharged me on hours BIG Time. I did an online research and it takes about 2-2.5 hrs max to replace the EIS system on the Benz and This people charged me $382.44 for the part plus 6.5 hrs of labor (For What :)) in the amount of $962.00 plus Misc Charge of 48.99 (I do not have any idea for what, no one specifically explained that to me), in total $1427.09 for the EIS change. I am really laughing loud how Big of a joke I am when I allowed this professionals to do that to me. I am owning my benz for exactly 5 years and it is clean like a whistle, always done the maintenance on time with the best guy for the Benz in entire Phoenix/Scottsdale. 2 days after the service I have received a customer service phone call follow-up and I expressed my concerns (I could not discuss while I was picking the car, because I was in rush, I literally 2 days prior become a dad for the 1st time :) and it was very inconvenient because we do have only one car at the moment). However, on my request to talk to their manager no one followed up and I am really upset because of that. I wish I could post my entire bill here, so everyone can see how overcharged I was for this service. I am very disappointed and this never happened to me in Benz of Scottsdale dealership. I truly hope they will call me back and if they have any integrity return my money for extra 4.5hrs of charge. Also, I am going to send the details to BBB and hopefully they can help me. My suggestion is to stay away from this place, I wish them all the best!!! Thank you for reading.