1511 Auto Center Drive
Oxnard, CA 93036

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Hours Toggle

Sales Department

Sun 10:00am – 6:00pm
Mon 9:00am – 7:00pm
Tue 9:00am – 7:00pm
Wed 9:00am – 7:00pm
Thu 9:00am – 7:00pm
Fri 9:00am – 7:00pm
Sat 9:00am – 7:00pm

Service Department

Sun Closed
Mon 7:00am – 6:00pm
Tue 7:00am – 6:00pm
Wed 7:00am – 6:00pm
Thu 7:00am – 6:00pm
Fri 7:00am – 6:00pm
Sat 8:00am – 5:00pm

Reviews of Mercedes-Benz of Oxnard

Overall Rating:

2.7 (out of 5)

57% recommend this dealer

88 total reviews

Showing the most recent reviews from Cars.com and DealerRater.

1.0 (out of 5)

One of the worst dealerships.

Reviewed by Tony from San Diego, CAAugust 15, 2025

One of the worst dealerships. Avoid going there and be aware of what they say and offer. I bought certified pre owned 2024 GLS in August the 2nd. They posted it as certified and passed 138 points of inspection. I took a test drive and the AC wasn't working. The sales rep "Mario Lopez" said he is surprised about that and took it to the maintenance. The maintenance said it was low on freon. I asked to double check for any leaks or compressor issues and provide paperwork saying they went through testing and checking process. I paid what they asked for and the general manager "Sean" agreed to do that. Sean said this will take few days and the vehicle will be delivered at my place in 4 days. The kept the car for a week without anyone calling me. I called everyday to check if the car has been checked and fixed, didn't get an answer. Called Mario, Sean, Alfonso from finance department, and maintenance. All of them said will check and call you back. No one called back. After one week, I received the vehicle and the AC wasn't working. They provided paperwork from maintenance saying was check and working properly. I took it to different dealership in San Diego at the same day I received it from Oxnard. They checked it and found leak in the AC valve. They replaced it and fixed the issue. It took me two weeks to get the car working properly. They are dishonest when they said certified as you cannot certify it with AC issue. They told me this car was used as a loaner car and the service manager was using it personally!!! I haven't received my free SiriusXM subscription yet. I asked for it many times but no luck.

  • Does not recommend this dealer
  • Shopped for a used car
  • Did make a purchase

Dealer Response

We regret to hear that you had a negative experience with us, but we would appreciate the chance to turn your experience around. In an effort to work towards a resolution, we would appreciate a chance to speak with you. If you are willing, please reach out to Matt Kelleher, General Manager, at mkelleher@griecocars.com to discuss this further.

Overall Facilities N/A

Customer Service N/A

Buying Process N/A

Quality of Repair N/A

Maximum rating = 5

5.0 (out of 5)

Very disappointed in the service department.

Reviewed by Slc0329August 10, 2025

Very disappointed in the service department. When I called to make annual service appointment. I was not aware my car warranty expired. Took my car for an oil change. When I checked in, they never told me there would be a charge for my visit. After my car was complete I was told I owed 400.00. I questioned why I was being charged. I was told they told me when I made my appointment that my warranty expired. They absolutely never said anything because I would have asked how much my service would cost and would NEVER agree to a $400.00 oil change and car wash. Very disappointed that I never got notification from Mercedes of my warranty expired and that I was lied to by service department that they told me ahead of time. Updated Review: Mercedes Manager, Matt Kelleher, immediately called me after receiving my email and my concerns. Matt apologized and we agreed upon a resolution that was satisfactory to my original complaint. I was very impressed that Matt called me on a Sunday within an hour of me sending the email. This is great customer service acknowledging in a timely manner. Thank you Matt!

  • Does recommend this dealer
  • Came in for service or repair

Dealer Response

We are sorry for any inconvenience. We take customer satisfaction seriously and are disappointed if you have not experienced that thus far. In order for us to better assist with this situation, please contact Matt Kelleher, General Manager, at mkelleher@griecocars.com.

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

1.0 (out of 5)

Wish there was an option for no stars.

Reviewed by Paul from Upland, CAJune 21, 2025

Wish there was an option for no stars. This dealership tried a bait and switch with trying to tack on additional hidden fees under the premise of “dealer installed options” for an upholstery protectant. When confronted the sales rep Hugo and acting manager, Charles admitted they quoted a price that they could not honor after arriving in-person. Save your time and avoid this dealership at all costs.

  • Does not recommend this dealer
  • Shopped for a used car
  • Did not make a purchase

Overall Facilities N/A

Customer Service N/A

Buying Process N/A

Quality of Repair N/A

Maximum rating = 5

About Mercedes-Benz of Oxnard

Grieco Automotive Group is a family business that’s dedicated to 100% customer satisfaction. Whether you’re purchasing a new or pre-owned vehicle, servicing the one you already own, or shopping for a part, we work hard to provide a world-class experience at every Grieco location.

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