Diagnostic Services in Cotati
Advanced computer diagnostics and troubleshooting for all vehicle systems using professional-grade equipment.
Residents of Cotati have relied on Rohnert Park Transmission & Auto Repair for comprehensive diagnostic services since 1990. Our conveniently located shop is only 5 minutes from Cotati, making us the go-to choice for drivers throughout Sonoma County. Whether you're commuting from La Plaza Park (Hexagonal Plaza) or the surrounding Cotati neighborhoods, our team of ASE-certified technicians delivers honest, professional diagnostic services at competitive prices. We understand the importance of keeping your vehicle running safely and efficiently.
Need Immediate Service?
Need service today? We accept walk-ins and offer same-day appointments for most services. Call (707) 584-7727 to check availability.
Why Cotati Drivers Choose Us
Trusted diagnostic services serving the Cotati community
Convenient to Cotati
Just 5 minutes from La Plaza Park (Hexagonal Plaza) - easy access via US Highway 101.
35+ Years Experience
Family-owned and operated since 1990, serving Sonoma County with integrity.
ASE-Certified Technicians
Our mechanics undergo continuous training to stay current with automotive technology.
Honest Pricing
Upfront estimates with no hidden fees. We explain exactly what your vehicle needs.
Diagnostic Services Specialists
Expert diagnostics and repairs using professional-grade equipment.
Quality Parts
We use OEM and premium aftermarket parts backed by warranty.
Same-Day Service
Most repairs completed while you wait. Drop-off and pickup available.
Free Diagnostics
Complimentary inspection with repairs to identify all issues upfront.
Serving Cotati
We understand the unique needs of Cotati drivers and their vehicles.
Customer Reviews
4.8-star rating with hundreds of satisfied customers across Sonoma County.
Our Diagnostic Services Services Include
Warranty Protection
Our diagnostic services come with a guarantee: if we can't identify the problem, you don't pay for the diagnostic.
Common Diagnostic Services Issues We Fix
Check Engine Light
Dashboard warning requires OBD-II scan to retrieve fault codes and identify specific system problems.
ABS Warning Light
Anti-lock brake system fault needs computer diagnosis to locate sensor or module failures.
Airbag Light On
SRS system warning indicates crash sensor, airbag module, or wiring issues requiring immediate attention.
Transmission Warning Light
Transmission control module detects faults in sensors, solenoids, or internal components.
Electrical Problems
Intermittent electrical issues require systematic diagnosis to locate shorts, opens, or module failures.
Performance Issues
Poor acceleration, hesitation, or stalling requires comprehensive diagnostics to identify root cause.
Pricing & Service Time
Get Your Free Quote
(707) 584-7727Free diagnostic with most repairs. Upfront estimates with no hidden fees. We explain exactly what your vehicle needs before we begin work.
Fast Service
Most services completed same-day. Drop-off and pickup available for your convenience. We respect your time and get you back on the road quickly.
Serving Cotati & Surrounding Areas
Cotati residents trust us because we're part of the same community. With a population of 7,584, Cotati deserves a local auto repair shop that puts customers first. Located just 5 minutes away, we've built relationships with families throughout Cotati, near La Plaza Park (Hexagonal Plaza), Cotati Speedway, Laguna de Santa Rosa, and beyond.
Directions from Cotati
From Cotati, take US-101 South for just 2 miles. Take the Rohnert Park Expressway exit and turn right. Our transmission and auto repair shop is located on the left side within 5 minutes of downtown Cotati.
Near These Cotati Landmarks:
Ready for Expert Diagnostic Services?
Ready to get your vehicle back in top condition? Call us now for fast, professional diagnostic services just 5 minutes from Cotati.
Serving Cotati, Rohnert Park, and all of Sonoma County