4.8(260 REVIEWS)
  • Mon: 8:00 am-5:00 pm
  • Tue: 8:00 am-5:00 pm
  • Wed: 8:00 am-5:00 pm
  • Thu: 8:00 am-5:00 pm
  • Fri: 8:00 am-5:00 pm
  • Sat: By Appointment
  • Sun: Closed
9297 9th St Rancho Cucamonga, CA 91730
Schedule Appointment
(909) 522-4002
Cisco's Benz & Beemers Auto Repair Logo

Auto Diagnostics
Rancho Cucamonga, CA

Check Engine Light Diagnostics

Schedule Appointment: (909) 341-1669

FREE Diagnostic (First Hour)

*Unless teardown is needed for further diagnostics.

(909) 341-1669
Diagnostic Mercedes

Why Choose Us?

At Cisco’s Benz & Beemers, our state-of-the-art diagnostic tools and equipment are designed to dive deep into your vehicle’s engine systems. Our experienced technicians use cutting-edge technology to quickly and accurately pinpoint the root cause of the check engine light. From engine misfires to faulty sensors or emissions issues, we can identify and fix any problem your vehicle may have.

Family Owned

Key Drop Off

Waiting Area

Refreshments

Located Near You

Don’t wait – small issues can turn into expensive repairs. Get a fast, accurate diagnostic today.

Customer Feedback

We’ve earned our reputation by helping drivers understand exactly what’s going on with their vehicles.

SR
Went in for my B service
Service was very good and professional.
Stephanie R.
2022 Mercedes-Benz – 7/24/2026
Verified Customer
RJ
Honest family ran business
I have been going to Cisco’s for about 4 years now and am completely satisfied. Cisco and Arlene always communicate and are honest when it comes to what really needs to be addressed now vs later. … More I highly recommended them. Less
Ruben J.
2015 Mercedes-Benz – 7/24/2026
Verified Customer
VB
Cisco and his crew provided wonderful service on my wifes 2006 Nissan Xterra as a new customer. Did extensive troubleshooting after the check engine light came on to assess all issues with vehicle … More and prepare it for its smog certificate. This place is my new go to for all my vehicles and I am recommending them to everyone that we know. Less
Vincent Barton
7/20/2026
Verified Customer
DD
Top notch service
Been going to Cisco for a few years now and his work and customer service is always top notch
Dion D.
2018 Audi – 7/17/2026
Verified Customer
YD
Excellent
I have been coming to the shop since 2018. I highly recommend this mechanic. He is trustworthy, reliable, honest, and professional. He takes the time to explain the problem clearly and never tries … More to sell unnecessary repairs. His work is thorough, and the pricing is fair. It’s hard to find someone you can truly trust with your vehicle, but I always feel confident bringing my car here. Excellent customer service and quality workmanship every time. Less
Yang D.
2015 Mercedes-Benz – 6/24/2026
Verified Customer

Hours

Mon-Fri : 8am-5pm
Saturday : By Appointment
Sunday : Closed

Contact Us

Contact Us

(909) 341-1669

Address

Cisco's Benz & Beemers Auto Repair
9297 9th St
Rancho Cucamonga, CA 91730

CB & B • (909) 522-4002 • ARD299124
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