Diagnostic Services in Mill Valley
Advanced computer diagnostics and troubleshooting for all vehicle systems using professional-grade equipment.
Looking for reliable diagnostic services in Mill Valley? Rohnert Park Transmission & Auto Repair has been serving Mill Valley residents for over 35 years with expert automotive services. Located just 35-40 minutes away from Mill Valley, our ASE-certified technicians specialize in diagnostic services for all makes and models. Whether you're near Downtown Mill Valley or anywhere in the Mill Valley area, we provide fast, affordable, and professional diagnostic services backed by our satisfaction guarantee.
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 Mill Valley Drivers Choose Us
Trusted diagnostic services serving the Mill Valley community
Convenient to Mill Valley
Just 35-40 minutes from Downtown Mill Valley - 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 Mill Valley
We understand the unique needs of Mill Valley 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 Mill Valley & Surrounding Areas
Our shop is easily accessible from all major Mill Valley neighborhoods. Whether you're near Downtown Mill Valley, Mount Tamalpais, Old Mill Park, or anywhere in the Mill Valley area, we're just a short 35-40 minutes drive away. Many of our customers from Mill Valley appreciate our convenient location right off Highway 101, making it easy to drop off your vehicle on your way to work.
Directions from Mill Valley
From Mill Valley, take US-101 North through Corte Madera and San Rafael for approximately 32 miles. Take the Rohnert Park Expressway exit and turn right. Our auto repair shop is located on the left side near the Costco shopping center.
Near These Mill Valley Landmarks:
Ready for Expert Diagnostic Services?
Don't let diagnostic services issues compromise your safety. Mill Valley drivers trust us for reliable repairs at honest prices.
Serving Mill Valley, Rohnert Park, and all of Sonoma County