Welcome to On Site Auto Repair!
Auto Repair in Rohnert Park, CA
Auto repair in Rohnert Park, CA offering brake repair, oil changes, check engine light diagnostics, AC service, transmission service, timing belt replacement, suspension and steering repairs, wheel alignment, tire rotation and replacement, battery testing and replacement, and scheduled maintenance.
Visit our Rohnert Park garage today for top-notch auto repair services!
Our Auto Repair Services in Rohnert Park, CA
Brake Repair Rohnert Park, CA
Need Brake Repair in Rohnert Park, CA? Get brakes that handle daily stop‑and‑go on Rohnert Park Expressway, Highway 101 ramps, and Sonoma State traffic. We inspect pads and shoes, resurface or replace rotors and drums, service brake fluid, repair calipers and wheel cylinders, and diagnose ABS warnings. Our ASE‑certified techs use up‑to‑date scanners and torque specs for Toyota, Honda, Ford, Chevy, Dodge, and more. Rainy Sonoma County winters mean rusted rotors and spongy pedals—fix both quickly with same‑day availability and free inspections. Choose a shop that knows local roads. Book Brake Repair in Rohnert Park, CA for safer stops.
Radiator Repair Rohnert Park, CA
Stuck in 101 traffic by Rohnert Park Expressway with the temp gauge climbing? Choose Radiator Repair in Rohnert Park, CA for diagnostics, leak detection, pressure testing, and fixes that stop overheating before engine damage. We service Toyota, Honda, Ford, Chevy, Subaru, Lexus, Hyundai, replacing radiators, water pumps, thermostats, hoses, and belts, plus coolant flushes and circulation checks. Local insight: hills on Petaluma Hill Road, dust, and summer heat strain cooling systems during SSU commutes. Schedule Radiator Repair in Rohnert Park, CA to restore operating temperature. For preventive care, request Radiator Repair in Rohnert Park, CA before long Sonoma drives.
Check Engine Light Repair Rohnert Park, CA
Dealing with a dashboard warning? Our Check Engine Light Repair in Rohnert Park, CA pinpoints misfires, EVAP leaks, and sensor faults that cause failed smog checks. We read OBD-II codes, verify with live data, smoke-test EVAP systems, test batteries, and confirm fixes with drive-cycle readiness for Sonoma County inspections. We handle issues common on Rohnert Park Expressway and SSU runs: worn coils, clogged EGR, loose gas caps after fuel stops. Get fast diagnostics convenient to Highway 101. Choose Check Engine Light Repair in Rohnert Park, CA for clear estimates and verified repairs. Book diagnostic service in Rohnert Park today.
Auto AC Repair Rohnert Park, CA
Auto AC Repair in Rohnert Park, CA keeps you cool in Highway 101 traffic and clears fog fast on damp Sonoma mornings. EPA 609-certified techs service R-134a and R-1234yf systems, recharge refrigerant, repair compressors and condensers, replace evaporators and heater cores, and fix thermostats and blend doors. We use computer diagnostics and pressure testing to pinpoint leaks and faults, protecting your compressor and restoring cold airflow. Prepare for summer trips to Bodega Bay and wildfire smoke with cabin filter service and climate control checks. Schedule Auto AC Repair in Rohnert Park, CA for reliable defrost and consistent vent temperatures.
Oil Change Rohnert Park, CA
Get fast, manufacturer-spec oil service that fits Rohnert Park driving—US‑101 stop‑and‑go, Sonoma State commutes, and weekend wine country hills strain engines. An Oil Change in Rohnert Park, CA with the right viscosity and OEM filter improves fuel economy, cold starts on foggy mornings, and longevity for Toyota, Subaru, Honda common here. We check fluids, cabin/engine air filters after smoke and harvest, reset maintenance lights, and document service to keep warranties. Avoid sludge from short trips and idling on Rohnert Park Expressway. Book Oil Change in Rohnert Park, CA today. Choose Oil Change in Rohnert Park, CA near Cotati now.
Suspension Repair Rohnert Park, CA
Navigate potholes on Rohnert Park Expressway and Highway 101 daily with Suspension Repair in Rohnert Park, CA that restores control and ride comfort. Technicians diagnose clunks, pulling, and uneven tire wear; replace shocks, struts, ball joints, tie rods, and bushings; correct alignment after curb or pothole hits; and repair power steering leaks. You’ll stop quicker, track straight, and reduce vibration on Stony Point Road and neighborhood speed humps. Schedule Suspension Repair in Rohnert Park, CA to protect tires and avoid drivetrain strain. Choose local expertise familiar with Sonoma County backroads. Suspension Repair in Rohnert Park, CA keeps you confident.
Tire Shop Rohnert Park, CA
Searching for a Tire Shop in Rohnert Park, CA that fixes driving issues? We install and balance tires precisely to stop steering shake at Highway 101 speeds, repair punctures from nails on construction routes along Rohnert Park Expressway, and reset TPMS lights on cold Sonoma mornings. We mount with proper torque, replace valve stems, and perform road-force and computer balancing. Choose Michelin, Bridgestone, Goodyear, or Continental for commutes to Sonoma State or Santa Rosa. We service Toyota, Subaru, Honda, and more. Drop in for flats, curb-damage evaluation, and rotations near East Cotati. Visit Tire Shop in Rohnert Park, CA today.
Transmission Repair Rohnert Park, CA
Get Transmission Repair in Rohnert Park, CA that solves hard shifts on Highway 101, shudder on Rohnert Park Expressway, and leaks after Sonoma County hill drives. Technicians diagnose automatic and manual issues on Toyota, Honda, Ford, Chevy, Subaru, Lexus, Hyundai, and more. Services include fluid exchange with OEM-spec fluids, filter replacement, clutch repair, axle/CV joints, transfer cases, and full rebuilds. We provide free transmission diagnostics, road-test locally, and verify cold-start and hot-cycle performance. Benefit from clear estimates, quick parts sourcing in Sonoma County, and repairs that stop slipping, grinding, and delayed engagement. Schedule Transmission Repair in Rohnert Park, CA.
About Us: Auto Repair in Rohnert Park, CA
Looking for reliable auto repair near Rohnert Park? On Site Auto Repair in nearby Santa Rosa has been the go-to car repair destination for Rohnert Park residents since 2011. Our experienced auto mechanics serve drivers from A Section to University District and everywhere in between.
As the best auto repair shop in the region, we specialize in brake repair, transmission repair, engine repair, and radiator repair for all makes and models. Our ASE-certified technicians use advanced diagnostics to accurately identify issues, from check engine light repair to complex drivetrain problems.
Rohnert Park drivers trust us for import car repair on Honda, Toyota, Acura, Hyundai, and Subaru vehicles, as well as domestic service for Ford, Chevy, and Dodge trucks and cars. We're conveniently located just a short drive up Highway 101, making quality auto repair accessible to the entire Friendly City.
With transparent pricing, honest diagnostics, and over 25 years of experience, On Site Auto Repair delivers the dependable service Rohnert Park families deserve.
Call (707) 326-8655 – Serving Rohnert Park from 363 W 9th St, Santa Rosa.
About Rohnert Park, CA
Rohnert Park, CA grew from planned neighborhoods and parkways, earning a reputation as a “planned city” with residential villages and greenbelts. Its layout supports easy commutes, steady foot traffic, and accessible services for residents and businesses. Notable landmarks include Rohnert Park City Hall, Foxtail Golf Club, Scandia Family Fun Center, Callinan Sports and Fitness Center, and St. Joseph Health’s Rohnert Park services. Technicians handle everyday repairs near SSU student housing, quick diagnostics for commuters along Rohnert Park Expressway, and battery, brake, and tire work around Costco and State Farm Drive. Mobile service reaches neighborhoods off Snyder Lane and Golf Course Drive, coordinating safe, on-site repairs at homes, workplaces, and parking lots near Green Music Center and the SMART station.
Rohnert Park's population is 44,390. City center coordinates: 38.3396, -122.7011. The city has a mild Mediterranean climate with cool, wet winters, dry summers, coastal fog, and occasional heat waves and wildfire smoke. On Site Auto Repair schedules mobile service to avoid peak heat, checks cooling systems, batteries, and air filters for dust/smoke, and uses CARB-compliant parts, waste handling, and California BAR repair procedures. B Section: Cotati Exchange gets prompt mobile diagnostics and brake repairs near commercial centers; G Section: routine maintenance and battery replacements; M Section: quick oil changes and belt checks; W Section: roadside alternator service; University District: scheduled tune-ups and tire rotations near campus housing. We prioritize eco-friendly practices using recycled materials and sustainable methods, and we support Rohnert Park’s community through local partnerships and events. Count on neighborhood-focused service in Rohnert Park, CA. For reliable Auto Repair services in Rohnert Park, contact On Site Auto Repair today.
Cities We Serve
Clear Sky
Temperature
Wind Speed
Humidity
Neighborhoods We Serve
Things to Do
Scandia Family Fun Center
Rebounderz Rohnert Park - Indoor Trampoline and Adventure Park
Crane Creek Regional Park
Reed Between The Lines
Ladybug Park
Rainbow Park
Caterpillar Park
Rohnert Park
Graton Resort and Casino
Transportation
Commerce Blvd./ RP Expwy.
Rohnert Park Bus Pad
Rohnert Park SMART Station
Rohnert Park Expy Bus Pad
Commerce Blvd & RP Expressway
Rohnert Park Expy & Hwy 101
Old Redwood Hwy & Page St
East Cotati Ave & Santero Way
Snyder Ln & Keiser
Raley's Town Center
Rohnert Park Station
Rohnert Park Library
Old Redwood Hwy & St Joseph Way
RP Expressway & LaBath
Redwood Dr & Commerce Blvd
Snyder Ln & RP Express Way
Rohnert Park Expressway & Snyder Lane
Cotati Hub
East Cotati Ave & Snyder/Roman
Country Club Dr & Ellen St
Driving Directions
Driving Directions from Automotive Excellence to On Site Auto Repair
Driving Directions from Rohnert Park Transmission | Auto Repair to On Site Auto Repair
Driving Directions from Acur-It Auto Repair to On Site Auto Repair
Driving Directions from Complete Automotive to On Site Auto Repair
Driving Directions from Auto Repairs Unlimited to On Site Auto Repair
Driving Directions from My Mechanic to On Site Auto Repair
Driving Directions from A.C.E. Automotive to On Site Auto Repair
Driving Directions from Dan's Superior Auto Service to On Site Auto Repair
Driving Directions from RPM Automotive Services to On Site Auto Repair
Driving Directions from Bowen's Automotive to On Site Auto Repair
Driving Directions from KP Motorworks to On Site Auto Repair
Driving Directions from AAA Cotati Auto & Tire Center to On Site Auto Repair
Driving Directions from Precision MotorWerks, German Car Repair to On Site Auto Repair
Driving Directions from Big Johnsons Automotive to On Site Auto Repair
Driving Directions from Crash Champions LUXE | EV Certified Repair Rohnert Park West to On Site Auto Repair
Driving Directions from Bevan Auto Repair to On Site Auto Repair
Driving Directions from Rohnert Park Tire Hub to On Site Auto Repair
Driving Directions from Auto Phoenix to On Site Auto Repair
Driving Directions from Advance Smog Auto Care Center to On Site Auto Repair
Driving Directions from Mobil 1 Lube Express to On Site Auto Repair
Frequently Asked Questions
Our certified mechanics answer the most common car repair questions to help you stay informed and confident. Explore our FAQs for honest, expert advice trusted by Santa Rosa drivers.
Do you provide loaner cars or shuttle service?
While we don't provide loaners, we're located in downtown Santa Rosa's Railroad Square with easy access to shopping, dining, and public transportation while you wait.
Can you work on my vehicle if it's still under warranty?
Absolutely! We perform warranty-compliant maintenance and repairs. We use OEM or equivalent parts to maintain your vehicle's warranty coverage.
How do I know if I really need the recommended service?
We provide detailed explanations and show you exactly what needs attention. We never pressure you into unnecessary repairs - our reputation depends on honest service.
Do you offer payment plans for major repairs?
We accept cash, check, and all major credit cards. For major repairs, we can discuss payment options that work for your budget.
What if my car breaks down outside of business hours?
Call our main number (707) 326-8655 and leave a message. We'll get back to you first thing in the morning to arrange service.
ReviewsWhat Our Clients Say
Brands We ServiceAuto Repair Brand
Toyota Repair
Honda Repair
Ford Repair
Chevrolet Repair
Nissan Repair
Hyundai Repair
Subaru Repair
Mazda Repair
Volkswagen Repair
BMW Repair
Mercedes Repair
Lexus Repair
Acura Repair
Infiniti Repair
Kia Repair
Contact Info
Location
363 W 9th St B & C
Santa Rosa, CA 95401
Phone
707-326-8655
Hours
- Monday-Friday: 8:00 AM - 5:30 PM
- Saturday: 8:00 AM - 4:00 PM
- Sunday: Closed
New Customer Special:
$25 Off First Service Over $100
Oil Change Special:
Full Synthetic Oil Change - $69.9
Free Brake Inspection
Complete brake system check at no charge
Latest News
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Top 5 Benefits of Choosing an On-Site Auto Mechanic
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Common Auto Repairs and How Our Santa Rosa Mechanics Can Help
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The Convenience of On-Site Auto Repair – How We Bring the Shop to You
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Essential Auto Repair Tips from Our Expert Mechanics
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Why Regular Auto Maintenance is Key for Longevity and Performance
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The Most Common Auto Repair Issues and How to Prevent Them
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How On-Site Auto Repair Saves You Time and Money
Savings are the primary driving force behind the growing popularity of on-site auto repair services. Instead of spending hours in waiting rooms or juggling appointments, you can have skilled mechanics come directly to your location, whether at home or work. This...
Read More About Our Auto Mechanic Services
On Site Auto Repair in Santa Rosa is a full service auto mechanic shop. Our auto mechanics are certified and here to help you with all of your automotive repair needs. No auto repair job is too big or too small for On Site Auto Repair.We specialize in all types of auto repair, including: regular maintenance, break/fix, engine repair, troubleshooting and much more! If you are looking for honest and reliable auto mechanics, give us a call today. Ask us about our new customer specials
Vehicles are usually described as 5 or 6 “speed” meaning then have that many gear ratios to allow the vehicle to travel at the full range of speeds required and to make use of the engine’s output power as efficiently as possible. Due to their complexity, constant use and function within a vehicle’s operation, transmissions experience a lot of wear and tear. Add to this the fact that many owner’s forget to check and change the fluid on a regular basis and it’s easy to understand why so many people have transmission problems. At On Site Auto Repair in Santa Rosa, our transmission repair technicians can accurately diagnose, repair or replace your transmission. If your are looking for a reliable and honest transmission repair services company, give us a call today!
There are several warning signs that your vehicle can give you before your brakes may reach the point of potential failure or extensive repair. Whether composed of ceramic, semi-metallic, or organic materials, brake pads erode each time you depress the brake pedal. If the pads wear down too much without being replaced, the metal housing for the pads will make contact with the metal rotors (or drums), which may produce not only a safety issue but a situation where the rotors/drums are required to be replaced as a result of the prolonged contact of metal parts without the pad buffer. If you are in need of an affordable brake repair mechanic in Santa Rosa, please do not hesitate to schedule an appointment today!
Vehicle Inspection In Santa Rosa
The key to top notch automotive repair and troubleshooting lies in a thorough understanding of what’s actually going on under the hood. Sure, you know that a radiator keeps your engine cool, but understanding how it keeps it cool is the key to solving technical problems efficiently. If you know which parts perform what function, your powers of diagnosis will be much more powerful.
Radiator Inspection Service In Santa Rosa
Ensuring that your vehicle’s engine cooling system is in proper operating condition is extremely essential to engine life and performance. Operating at excessive temperatures can lead to premature engine wear. Your vehicle’s engine cooling system should be checked periodically, and a radiator coolant flush is also recommended to prohibit radiator corrosion. On Site Auto Repair will thoroughly drain and power flush the old coolant and particulates, and refill the cooling system with your vehicle manufacturer’s recommended coolant.
Our Santa Rosa Service Area – Directions to On Site Auto
Proudly serving drivers throughout Santa Rosa neighborhoods, from Railroad Square to Bennett Valley, and extending our trusted auto repair services to Petaluma, Sebastopol, Windsor, and all of Sonoma County.
We Service Clients From All Over Sonoma County
From Wine Country commuters to local families, we provide reliable auto repair services to Santa Rosa, Petaluma, Sebastopol, Rohnert Park, Windsor, Healdsburg, and communities throughout Sonoma County.
Things To Do In Santa Rosa, CA
From exploring the Charles M. Schulz Museum and Luther Burbank Home & Gardens to enjoying outdoor adventures at Spring Lake Regional Park and Annadel State Park, Santa Rosa offers endless opportunities for family fun, Wine Country experiences, and recreational activities that keep our community vibrant year-round.
Santa Rosa Transportation to On-Site Auto Repair
Conveniently located in the historic Railroad Square district with easy access from Highway 101, our auto repair shop is just minutes from downtown Santa Rosa, Santa Rosa Plaza, and all major neighborhoods, with nearby public transit options and walkable access to local shops and restaurants while your vehicle is being serviced.
Contact On-Site Auto Repair Today
Ready to experience honest, reliable auto repair in Santa Rosa?
Whether you’re dealing with a check engine light, need routine maintenance, or facing an unexpected breakdown, our ASE-certified mechanics are here to help. We serve drivers throughout Santa Rosa and Sonoma County with the same commitment to quality and honesty that has made us the area’s most trusted auto repair shop.