Santa Rosa, California · Since 1969

Auto
Repair
Santa Rosa

Independent European & Domestic specialists. Family owned for over 55 years. Every vehicle treated like it's our own.

Schedule Service Call (707) 544-5080
55+
Years in
Santa Rosa
All
Makes &
Models
5★
Customer
Reviews
Fleet
Commercial
Programs
Full Service Shop

What
We Do

From quick maintenance to complex repairs, Hahn Automotive has the expertise and equipment to handle every job with dealership-level precision.

View All Services
01
Oil Change & Maintenance
Conventional, synthetic, and high-mileage. Full multi-point inspection included.
Details 02
Brake Repair & Service
Pads, rotors, calipers, brake fluid flush. Full stopping power restored.
Details 03
Transmission Repair
Service, rebuild, and replacement. Automatic and manual transmissions.
Details 04
Engine Diagnostics
Check engine light, OBD-II scanning, and comprehensive engine analysis.
Details 05
Electrical Repair
Battery, alternator, starter, wiring, and advanced electrical diagnostics.
Details 06
Suspension & Alignment
Shocks, struts, steering, and precision wheel alignment for every make.
Details 07
AC & Heating Repair
A/C recharge, compressor replacement, HVAC diagnostics for all vehicles.
Details 08
Hybrid Vehicle Service
Specialized hybrid maintenance for Toyota Prius, Honda Insight, and more.
Details 09
Diesel Repair
Diesel trucks, fuel systems, and heavy-duty engine service and diagnostics.
Details
Vehicle on lift at Hahn Automotive, Santa Rosa CA
Our Story

Family Owned.
55 Years.
Santa Rosa.

Hahn Automotive has been the most trusted name in auto repair in Santa Rosa since 1969. Owner Billy Coughlan has worked at this shop since 1979 and took ownership in 1989 — bringing over four decades of personal commitment to every car that comes through the door.

We're not a chain. We're your neighbors. Every repair is done with integrity, explained clearly, and priced honestly.

55+
Years Serving
Sonoma County
Solar
Powered Facility &
Green Practices
Fleet
Programs for Business,
Schools & Non-Profits
Our Story
Beyond the Basics

Specialty Services
Other Shops Won't Touch

Commercial

Fleet Services

Comprehensive fleet maintenance programs for Sonoma County businesses, restaurants, schools, and non-profits. Scheduled service, diagnostics, and bid preparation.

Learn More Heavy Duty

Diesel Truck Repair

Diesel engines, fuel injection systems, turbochargers, and performance diagnostics for work trucks, delivery vehicles, and heavy-duty diesel equipment.

Learn More Recreational

RV, Boat & Trailer

Full mechanical service for RVs, marine engines, and all trailer types including brake systems, wiring harnesses, and structural repairs.

Learn More Diagnostics

Electrical Diagnostics

Complex automotive electrical work including parasitic drain, wiring shorts, module reprogramming, and custom trailer wiring for any vehicle configuration.

Learn More
Vehicles We Service

All Makes & Models

TOYOTA Toyota HONDA Honda FORD Ford CHEVY Chevrolet SUBARU Subaru NISSAN Nissan HYUNDAI Hyundai ACURA Acura LEXUS Lexus DODGE Dodge BMW BMW MERCEDES Mercedes AUDI Audi VW Volkswagen

940 N Dutton Avenue, Santa Rosa · Mon–Fri 8AM–5PM

Meet the Team

Maggie — Head of
Customer Relations

"Every great shop has a mascot. Ours has four legs, a wagging tail, and an excellent nose for engine trouble."

Maggie is Hahn Automotive's resident Labrador and self-appointed inspector of all vehicles entering the facility. She's been greeting customers, keeping spirits high, and supervising repairs for years. If the waiting room feels like home, she's a big reason why.

Maggie, the Hahn Automotive shop dog
Sonoma County

Serving the Entire North Bay

Santa Rosa Windsor Rohnert Park Sebastopol Healdsburg Petaluma Sonoma Cotati Forestville Kenwood Glen Ellen Fulton
What Our Customers Say
★★★★★ "
Billy and his team are the most honest mechanics I have ever worked with. They diagnosed my check engine issue the same morning, had the car back by afternoon, and the price was completely fair. I will never go anywhere else.

Mike T.  ·  Santa Rosa, CA  ·  Toyota Tacoma

★★★★★
"Fifteen years, three different cars. Hahn Automotive has never once tried to upsell me on something I didn't need. That kind of trust is rare."
Sarah L.
Rohnert Park, CA · Honda Pilot
★★★★★
"We run a fleet of 12 vehicles through Hahn. Their fleet program is excellent — scheduling is seamless, work is done right, downtime is minimal."
David R.
Windsor, CA · Fleet Customer
★★★★★
"Three shops couldn't diagnose my diesel. Hahn found it in two hours and fixed it the same day. Finally a shop that actually knows diesel."
Robert K.
Healdsburg, CA · Ford F-250 Diesel
★★★★★
"The waiting area is beautiful, there's a shop dog named Maggie, and the service is impeccable. My Subaru runs better than it has in years."
Jennifer M.
Sebastopol, CA · Subaru Outback
Get Started

Schedule Your
Service Today

Call us or book online. Same-day appointments often available.

Schedule Online (707) 544-5080
Call (707) 544-5080 Schedule Service