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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2012 Subaru Impreza
Mileage144,770Service Date5/29/2026Services Performed- Inspected underhood of vehicle and found coolant pooled at the top of the motor, leaking from a coolant junction block behind the AC compressor. Lifted vehicle and observed an oil return/drain line leaking from the hard pipe connection. Also observed the transmission oil pan leaking a significant amount of fluid. Recommending replacement of coolant junction fitting with a coolant flush. Also Recommending replacement of 4 inch section of 9/16 hose with new clamps, and a transmission service with reseal of pan.
- TRANSAXLE OIL FILTER – Remove & Replace – Pan
Celeste M. gave our service a 5 star review on 5/29/2026 -
2016 RAM 1500
Mileage230,942Service Date5/13/2026Services Performed- WATER PUMP – Remove & Replace – V6, 3.6L Eng
James R. gave our service a 5 star review on 5/16/2026 -
2016 Toyota Highlander
Mileage75,791Service Date5/7/2026Services Performed- AUTOMATIC TRANSMISSION FLUID – Drain & Refill – Gas – [Includes: Confirm Fluid temperature for level check.]
Leo N. gave our service a 5 star review on 5/8/2026 -
2010 Audi A3
Mileage84,124Service Date5/6/2026Services Performed- Inspected vehicle ignition system and verified key is unable to turn. Pulled apart steering column and verified that ignition lock is faulty. A new ignition barrel assembly is needed at this time. After replacement, retest is needed to verify correct operation of key. This operation is competed!
- Unable to move forward with check engine light diagnosis before repairing key issues first. After repairing key issues, started vehicle and noticed loud vacuum leak noise coming from engine bay. After inspecting found that intake flap actuator has broken off from intake manifold and is causing a large vacuum leak. Also noticed that the water pump is leaking as well and will need to be replaced while the intake manifold is off. Codes present are 08213, 08583, and 00768. After performing repair, all codes will be deleted and vehicle will need to be road tested to verify all systems are okay. After performing repair of intake manifold and water pump, cleared all previous DTC's and road tested vehicle. No check engine light has returned at this time and no leaks are present. BUT the ABS, Brake, and Traction control light are illuminated due to a faulty intermittent ABS hydraulic pump, Code 01276:014. Further diagnosis is needed to determine why ABS pump is faulty.
- This operation is completed.
- Operation: Replace Water Pump Assembly – Includes Coolant Drain/Refill and Intake Manifold Removal as Combination Labor Description: Performed removal and replacement of the engine water pump/thermostat housing assembly. Drained cooling system and recovered coolant as required. Removed engine cover, air intake ducting, PCV connections, and related components for access. Disconnected coolant hoses, electrical connectors, and mounting hardware from the water pump assembly. As part of required access, removed the intake manifold using combination labor procedures. Disconnected fuel rail, EVAP lines, MAP sensor, throttle body connections, and manifold fasteners. Inspected intake ports and manifold for carbon buildup or damage. Reinstalled intake manifold with new gaskets and torqued all fasteners to specification. Installed new water pump/thermostat housing assembly with new seals and hardware. Reconnected coolant hoses, electrical connectors, and all previously removed components. Refilled cooling system with approved coolant mixture and performed vacuum fill/bleed procedure. Verified proper coolant circulation and checked for leaks with engine at operating temperature. Cleared any related fault codes and performed final inspection.
Anne L. gave our service a 5 star review on 5/8/2026 -
2018 Dodge Grand Caravan
Mileage88,754Service Date4/29/2026Services Performed- We first scanned for codes and found P0128 thermostat rationally. We then started the vehicle and monitored coolant temperature and found that in the driveway without the A/C on the engine would reach normal operating temperature, and the fans cycled according to specification. We then switched the A/C on and found that the engine coolant temperature would drop below specification. We then took the vehicle on a test drive and found that with the A/C off the coolant temperature would rise at a stop light, but when driving would drop below specification. Based on these findings it confirms that the thermostat is faulty. We recommend replacing the thermostat, and thermostat housing. Then test driving again after repairs.
- THERMOSTAT HOUSING – Remove & Replace
Cindy N. gave our service a 5 star review on 4/29/2026 -
2011 RAM Pickup
Mileage214,647Service Date4/23/2026Services Performed- FRONT BRAKES @ ___7___MM REMAINING REAR BRAKES @ __7___MM REMAINING
- Alignment
- Removed and replaced drag link and tie rod and filled bushings with grease.
- Removed and replaced 4 ball joints and filled with grease. Removal of axles and diff fluid was necessary to complete repair. 3 quarts of 75w90 were added after repair.
- Tightened coolant fitting where egr delete is installed and leak is still present from o ring side of fitting. Fitting must be removed and new o ring installed to fix leak. Removed egr delete fitting and replaced worn o ring. Pressure tested system and topped off coolant and verified no more leaks at this time.
Tim S. gave our service a 5 star review on 4/23/2026 -
2021 Ford Bronco Sport
Mileage48,648Service Date4/21/2026Services Performed- Remove and reinstall four wheels and rear brake drums to inspect brake condition. Inspect entire system for leaks. Lining remaining is: Front (mm 0 ) Rear (mm 5 ) LF:__0.970________ RF:_0.975_________ SP_0.984_________ LR__0.435____RR:___0.435________SP___0.354_______ Recommend replacing front pads and rotors.
- DISC ROTOR – Remove & Replace – Front, Both – [Includes: Repack Wheel Bearings (where applicable) and replace Pads (if necessary). DOES NOT include refinishing.]
Adrian A. gave our service a 5 star review on 4/21/2026 -
2016 Acura RDX
Mileage135,643Service Date4/20/2026Services Performed- We put the vehicle up on a rack, and found that the engine was covered in oil around the oil filter. We then removed the passenger front Tire and started the engine. We found the oil leaking from the oil filter adapter mounting gasket where it meets the engine block. We recommend replacing the gasket, adding the lost engine oil and retest.
- Removing the front engine crankshaft pulley first, then gain access to the oil filter housing/adapter assembly from the engine block, cleaning the mating surfaces, installing a new gasket, and reassembling the unit.
Victoria G. gave our service a 5 star review on 4/20/2026 -
2022 Chevrolet Silverado 3500 HD
Mileage43,496Service Date4/10/2026Services Performed- Remove and reinstall four wheels and rear brake drums to inspect brake condition. Inspect entire system for leaks. Lining remaining is: Front (mm 5 ) Rear (mm 0 ) LF:_1.575_________ RF:__1.575________ SP__1.516________ LR_1.450_________RR:__1.575_________SP__1.516________ Front rotors are blistered and will need to be replaced when Front brakes are due. Rear pads are metal to metal. Recommend Rear pads, rotors, brake sensor, axles seals, silicone and gear oil. Front and rear tires are also due to be replaced.
- Replace rear shoes/Pads Install rear hardware, if necessary, machine drums or rotors, and adjust parking brake. Road test vehicle.
Mark C. gave our service a 5 star review on 4/11/2026 -
2015 Audi A3
Mileage136,856Service Date4/8/2026Services Performed- Found 3 of the 4 bolts that mount the subframe to the body missing. Need to lower the subframe an inspect the threads and subframe. If it is okay then install all new hardware and alignment. This is a starting point.
- After installing the bolts torqued to factory specifications, 70NM + 180 degrees, performed a alignment to set the steering wheel straight. Attempted to perform a steering angle sensor relearn to clear the warning lights. The relearn kept failing and code B116807 set. Which is steering angle sensor- mechanical malfunction. Found the steering angle sensor is integrated into the rack and pinion. Power and ground are present at the sensor. From the sub frame being loose, caused damage to the rack and pinion. We recommend replacing the rack and pinion with outer tie rods. Note… front pads 8mm, rear pads 8mm. The line feeding def to the injector is cracked and leaking.
- Alignment
- Removed and replaced DEF hose. Verified operation and road tested vehicle, def system is okay and no leaks at this time.
Palmer L. gave our service a 5 star review on 4/8/2026 -
2005 Toyota Highlander
Mileage127,969Service Date4/2/2026Services Performed- Inspected Front window operation and found that window motor is intermittently getting stuck and won't move window up or down. Recommend replacement of Front driver window motor and retest window operation to verify correction. We removed the faulty motor and regulator assembly and installed a new unit. Removed and replaced window regulator and verified operation.
- Removed door panel and inspected window regulator and window tracks. Found that the bracket and rubber insulator for the window has fallen off and disengaged from the window regulator. We are going to attempt to use special glue to secure the window rail so we do not have to replace this regulator. Please allow 24 hours to fully cure before usage of rear window.
Irma M. gave our service a 5 star review on 4/2/2026 -
2015 GMC Sierra 2500 HD
Mileage108,124Service Date4/1/2026Services Performed- Inspected vehicle steering system and found new pitman and idler arms and tie rods. Verified all nuts are torqued and tight and no loose fittings. Road tested vehicle and found no abnormal vibrations or shaking at moderate speeds. Only felt slight vibrations when applying brakes indicating that rotors may be warped from heat. Recommend adding a steering damper to satisfy customer needs, Also recommend front rotors to be replaced at next brake service.
Josh L. gave our service a 5 star review on 4/1/2026
