Absolutely the worst dealership experience in my entire life. Markham Infiniti straight up robbed me for $700. I brought my vehicle in because I got an AWD ERROR light and I dropped my vehicle off to service manager Kevin Kwan for diagnostic testing. After a full day and $160 later, I received notification that my vehicle did not duplicate the error message and that everything was okay with the vehicle. When I went to pick up my car, Kevin suggested a final test drive “just incase” - obviously they had not done their job - and sure enough the AWD ERROR popped up again. This was frustrating. I felt like they were wasting my time and not entirely sure if they even looked at my vehicle truthfully. Then, Kevin tells me he’s going for vacation and that Service Manager Larry Fung would follow up on the status of my vehicle. Approximately 48 hours later, I call the dealership since they failed to update me and I find out that a speed sensor/abs sensor was faulty and they had proceeded with full replacement and install without providing me a written quote or cost of the total repair job. I was absolutely blown away. How could they complete a job on my vehicle without my knowledge or consent? After finding out what the issue was with my car, I was hoping to shop around with other mechanic shops for the repair job. Anyway, I went on my lunch break to speak to Mr Larry Fung who then told me I have to pay the bill in full otherwise they would not return my vehicle to me. Larry Fung blamed me for the miscommunication between the service manager and gave me no choice but to pay up to get my car back. I paid the bill as I had to go back to work and I didn't trust them to keep my car anymore. However, I can definitely sue for negligence and am seriously considering lawyering up. Never ever will I bring my vehicle back there for servicing and I caution everyone because these guys there clearly don't care about you, your car, or customer service at all. I got ripped off for a $700 repair job I didn’t know about or consent to and was forced to pay.