Welcome to Brian's Automotive Repair,
your car service in Ontario, CA!
If you’re looking for auto repair in Ontario, CA, you’ve found us. Here at Brian's Automotive Repair we work hard to earn your trust and loyalty. We know how important it is to find a Ontario car service you can rely on, so your satisfaction is our top priority each and every day.
Here at Brian's Automotive Repair we understand what makes customer service truly outstanding. You will feel the difference exceptional customer care makes when you work with us. We know auto repair in Ontario offers you lots of choices, and we aim to provide the kind of caring customer service that will bring you back.
Our professional automotive service offers you years of combined expertise from our well-trained technicians. We treat our auto repair professionals well because we value their skill and can-do attitude. We know our team sets us apart, saving you time and money, not to mention worry. When it comes to auto repair in Ontario, we are totally confident that Brian's Automotive Repair is the best option in town!
Address
Brian's Automotive Repair
120 S Plum Ave
Ontario, CA 91761
(909) 391-3800
Shop Hours
Mon-Fri: 8am-5pm
Sat-Sun: Closed
Directions
Payment Types
We now offer financing through
Synchrony Car Care!
Affiliates & Certifications
We offer 1 year/12k mile & 2 year/24k mile warranties for AAA customers
About Brian's Automotive Repair Ontario, CA
For years Brian's Automotive Repair has been there for the people of Ontario. We love what we do, and that basic fact fuels our business. We are dedicated to our customers, and that’s why they stick with us—the best auto repair Ontario has to offer.
Our family of technicians and service staff sees their work here at Brian's Automotive Repair as more than a job. It’s their vocation and livelihood. Each member of our team is invested in your satisfaction.
Brian's Automotive Repair was founded on the basic idea that everyone deserves respect. It is our mission to treat each person that comes through our door with dignity and sensitivity. We believe this attention to detail has paid off by providing us with our loyal, friendly family of customers. That’s what makes Brian's Automotive Repair the best car service in Ontario!
Are you ready to experience the best Ontario car service available? Please give us a call or make an appointment here.
The Absolute Best Car Service in Ontario, CA
What sets Brian's Automotive Repair apart from all of the others in Ontario, CA?
Trust: When it comes to auto repair in Ontario, CA, it’s all about earning loyalty and trust by doing our very best every day. We are determined to earn and keep your trust.
Talent: At Brian's Automotive Repair, you can rest easy knowing that our highly-skilled, experienced auto service professionals are handling your car. Our technicians bring years of experience, skill, and education to the Ontario auto repair table.
Time: We take the time we need to provide you with top quality car service in Ontario, CA, and we take the time to talk to you about what that means. We listen to you so we understand your needs and goals for your auto repair.
Recently Serviced Vehicles
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2011 Ford Pickup
Mileage216,743Service Date2/9/2026Services Performed- Install customer supplied parts.
- Scanned vehicle for dtcs and found code P20BA for Reductant heater A control performance. This code is for the heater inside DEF tank, inspected harness and def level and found no visual faults. Recommend replacement of DEF heater at this time.
- REDUCTANT FLUID PUMP HEATER – R&R – F250 Super Duty, F350 Super Duty w/o Skid Plate – [Includes: R&I Tank.]
- TURBOCHARGER – BASE GASKET – R&R – F250 Super Duty, F350 Super Duty w/Dual Rear Wheels
- OIL SEPARATOR – R&R – F250 Super Duty, F350 Super Duty, Diesel
- A CP4 “disaster prevention kit” for the Ford 6.7L Power Stroke is designed to protect your fuel system from catastrophic CP4 high pressure pump failure by catching metal debris before it reaches injectors, rails, and the fuel tank. These kits don’t stop the pump from failing, but they dramatically reduce the repair cost if it does. ———————————————————————————————- Core Components • Billet return-side filter head • Accepts a standard spin-on fuel filter (usually a Donaldson P550943, 9-micron, 99% efficiency). • Captures metal debris coming from a failing CP4 pump before it reaches the tank. • Spin-on fuel filter (Donaldson P550943) • High-efficiency filter included with most kits. • OE-style quick-connect fuel lines • Pre-made lines for easy installation and proper routing. • Includes a fuel supply split-off located ~25 inches from the CP4 pump to reduce contamination risk. • Bypass/return filtration system • Routes CP4 return fuel through the added filter before it goes back to the tank. • Prevents debris from circulating through the entire fuel system.
- Inspected oil leak and found oil leaking onto bell housing area and dripping down to pan area, using camera found oil leak looks to be originating from Valley of motor area. Tear down is needed to verify oil leak source. In process of tear down, recommend replacement of CCV filter and various gaskets needed. Oil leak looks to be mainly originating from Turbo pedestal area, cab removal is required to repair oil leaks, recommending replacement of CCV filter and related gaskets as well as replacing Turbo pedestal and gaskets, and installing a "disaster prevention kit" to save fuel system when CP4 fuel pump fails due to mileage.
- Remove oil filter adapter, clean block and oil filter adapter Re install with new gasket.
Cal Y. gave our service a 5 star review on 2/9/2026 -
2008 Ford Pickup
Mileage189,796Service Date1/15/2026Services Performed- FRONT BRAKES @ __6____MM REMAINING REAR BRAKES @ ___8__MM REMAINING Wheel lock placed in cup holder.
Norm H. gave our service a 5 star review on 1/15/2026 -
2016 Acura RDX
Mileage129,410Service Date1/14/2026Services Performed- We have checked the charging system and have found no problems as of yet. The battery checks out good. The alternator is charging at 14.3 volts and the starter draw test is good. We are going to let the vehicle sit until after lunch and retest everything again to see if anything changes. Checked for parasitic draw and found test yielded no drains. All systems okay at this time.
Victoria G. gave our service a 5 star review on 1/14/2026 -
2016 Jeep Wrangler
Mileage57,177Service Date1/8/2026Services Performed- Perform a Pre Purchase inspection and advise.
Justin W. gave our service a 5 star review on 1/10/2026 -
2016 Mercedes-Benz C300
Mileage151,797Service Date1/6/2026Services Performed- Scanned vehicle and found 2 DTC's, P052E71 for Crankcase ventilation and P012800 for coolant temp below threshold. TSB LI01.20-P-076894 was released by Mercedes to remedy P052E71 for a faulty pcv system, software update is required by dealer per extended emissions warranty. This must be done at the dealer. P012800 is indicating a coolant under temperature condition, using live data verified that coolant never reaches desired coolant temperature indicating that thermostat is stuck open. Recommending replacement of Thermostat assembly and fill with new coolant at this time.
- THERMOSTAT – Remove & Replace
Greg L. gave our service a 5 star review on 1/6/2026 -
2005 BMW 325i
Mileage141,415Service Date1/5/2026Services Performed- BATTERY – Remove & Replace – [Includes: Test.]
- Cooling system full.
Ken M. gave our service a 5 star review on 1/5/2026 -
2017 Ford F-250 Super Duty
Mileage93,225Service Date12/18/2025Services Performed- Scanned found code P0402 EGR flow excessive detected. With engine running cycled the egr open and closed, confirmed the egr is not stuck. Found a TSB stating to reprogram with updated software and replaced the mass air flow sensor then recalibrate. This is a starting point.
- FRONT BRAKES @ __7____MM REMAINING REAR BRAKES @ __4___MM REMAINING
- FUEL FILTER – Remove & Replace – Diesel Both
- MASS AIR FLOW SENSOR – Remove & Replace – [Includes: Component test.]
- Perform a Computer update as required.
- EGR VALVE – Remove & Replace – Diesel
- Remove the broken stud on the EGR mount and install a new Heli coil, then install a new bolt
Chris G. gave our service a 5 star review on 12/19/2025 -
2010 Hyundai Sonata
Mileage72,531Service Date12/16/2025Services Performed- Was able to replicate a stalling concern once, vehicle acted as if it ran out of fuel. Vehicle had a hard timing restarting. Drove car back to the shop and installed a fuel pressure gauge and found code P0106 manifold absolute pressure circuit range/performance appeared. Test drove the vehicle again and could not get it to stall, cleared the code and drove again, still could not get the vehicle to stall but the code returned. Back probed the map sensor and 5 volt reference, ground and signal are present. Recommend starting with replacing the map sensor and a throttle body service, noticed throttle blade has carbon build up. Then retest. This is a starting point. After performing what we recommend, test drove twice and no codes returned and could not replicate a stalling concern.
- MANIFOLD ABSOLUTE PRESSURE SENSOR – Remove & Replace
- Removing the throttle body boot to gain access to the throttle body. Then, with a chemical, cleaning out the throttle body and wiping clean all debris. Then reassemble as required. Perform a computer relearn learn if necessary.
Susan P. gave our service a 5 star review on 12/16/2025 -
2024 Chevrolet Silverado 1500
Mileage18,201Service Date12/8/2025Services Performed- FRONT BRAKES @ __9____MM REMAINING REAR BRAKES @ __9___MM REMAINING
- Remove wheel locks on the over sized tires & Wheels
Joey B. gave our service a 5 star review on 12/8/2025 -
2010 Dodge Challenger
Mileage216,077Service Date12/2/2025Services Performed- Found a metal plate for the manufactures information, the bolts that were holding that information down was rattling.
John A. gave our service a 5 star review on 12/2/2025 -
2007 Chevrolet Impala
Mileage217,774Service Date11/24/2025Services Performed- The extension housing gasket is leaking. We also have found oil all over the front timing cover gasket and oil pan gasket. We also have found the transmission oil pan gasket leaking for sure. What we recommend is replacing the extension housing seal and changing the oil. Then perform a transmission service and filter change. After these repairs, have the engine completely pressure washed top AND bottom. Bring the vehicle back so we can put a dye in the engine oil and determine the other leaks.
- FRONT BRAKES @ __5____MM REMAINING REAR BRAKES @ __6___MM REMAINING
- Removed and replaced oil filter extension housing.
- Performed transmission service with new filter and gasket, topped off fluids and road tested vehicle. All systems okay this time.
Ramon H. gave our service a 5 star review on 11/24/2025 -
2014 Toyota Sienna
Mileage222,293Service Date11/14/2025Services Performed- FRONT BRAKES @ __7____MM REMAINING REAR BRAKES @ __4___MM REMAINING
Stephen (Woody) W. gave our service a 5 star review on 11/14/2025
