Auto Electrical
A1 Auto Mechanics provides the best electrical auto service in Costa Mesa, hands down.
Heating & Air Conditioner Repair
For the best cooling and heating auto repair service in Costa Mesa, trust A1 Auto Mechanics.
Check Engine Light, Diagnostic, and Repair
When that check engine light comes on, it’s hard not to feel annoyed or even worried.
Maintenance & Auto Service
It’s a fact: regular, quality maintenance extends the life of your vehicle. It also gives you the peace of mind you need.
The Absolute Best Car Service in Costa Mesa, CA
A1 Auto Mechanics
What sets A1 Auto Mechanics apart from all of the others in Costa Mesa, CA?
Quality Service
We use the latest diagnostic equipment and high-quality parts to ensure your vehicle is repaired to the highest standards.
Experienced and Certified Technicians
Our technicians are highly skilled and certified professionals with years of experience in the auto repair industry. They have the expertise to diagnose and repair any problem your vehicle may have.
Customer Satisfaction
Our goal is to exceed your expectations and ensure your complete satisfaction with every visit.
Our Customer Reviews
Recently Serviced Vehicles
-
2018 Hyundai Ioniq
Mileage98,980Service Date11/14/2025Services Performed- Technician test drove the vehicle with the customer to understand the customer's complaint, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System.
- OIL CHANGE
MOHAMADALI E. gave our service a 5 star review on 11/14/2025 -
2015 Infiniti QX60
Mileage110,643Service Date11/8/2025Services Performed- Technician test drove the vehicle with the customer to understand the customer's complaint, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System.
- CHANGE MODULE HEAD LIGHT
- CHANGE HOOD STRUT
ABBAS M. gave our service a 5 star review on 11/9/2025 -
2023 Tesla Model Y
Mileage18,500Service Date10/31/2025Services Performed- Technician test drove the vehicle with the customer to understand the customer's complaint, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System.
- FLAT TIRE
This vehicle's owner gave our service a 5 star review on 11/3/2025 -
2014 Porsche Cayenne
Mileage153,450Service Date10/18/2025Services Performed- Technician test drove the vehicle with the customer to understand the customer's complaint, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System.
- CHANGE WATER PUMP
FARZAD M. gave our service a 5 star review on 10/18/2025 -
2020 Toyota Prius
Mileage120,277Service Date9/26/2025Services Performed- Technician test drove the vehicle with the customer to understand the customer's complaint, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System.
- shipping
- repair suspension
This vehicle's owner gave our service a 5 star review on 9/26/2025 -
2018 Ford Explorer
Mileage66,959Service Date9/13/2025Services Performed- Technician test drove the vehicle with the customer to understand the customer's complaint, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System.
- remove & replace front brake pad
- remove & replace rooter and brake pad rear
LUPE S. gave our service a 5 star review on 9/13/2025 -
2006 Toyota Corolla
Mileage141,594Service Date4/21/2025Services Performed- Technician performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System. Our technician inspected and scanned the vehicle system, and noted the engine idling rough , test came back with codes : MISFIRE(P03031 cylinder # 3, and P0171 system too lean, and therefor; he recommends to replace all spark plugs, 1 ignition coil (preferably all 4 but customer declined), air mass flow sensor(MAS), and the vehicle is due for an oil change as well, plus throttle body cleaning. The customer approved the job recommendation, and the technician ordered the parts, removed and replaced one ignition coil and spark plugs, changed oil and filter, air filters are clean and OK. The technician then scanned the vehicle again, both codes went away but engine was still idling rough, checked and performed a FUEL PRESSURE TEST, it was below( 35 to 38) normal specification of 44 to 50, recommended to replace FUEL PUMP, and the customer approved it plus the technician mentioned that the MAS was not needed, therefor; gave credit back to the customer. After the work was done, test drove the vehicle, the fuel pump replacement made a big difference and rough idle went away but code P0171 was still evident. At this point, The technician smoked the vehicle system, a leak was prominent from the fuel tank CAP, replaced it with an oem one, cleaned up the MAS, recommended to replace Oxygen sensor as well , cleared the code, test drove the vehicle, its running fine now, no check engine light, and per customer's request took the vehicle to our neighbor for an SMOG TEST, it passed the test, and issued a certificate # UM563048C. Our technician stated the vehicle has other problems with the front and rear brakes that are WARPED, and when braking, its VIBRATING and ITS NOT SAFE, and the front lower control ARMS and BUSHINGS needs immediate attention as well.
- REMOVE AND REPLACE
- Lubricate and check chassis. Change oil and oil filter, Reset the service / maintenance light-if applicable- , Check air filter and breather filter. Preform basic safety inspection. Road test vehicle , No problem at this time.
- Oil Disposal
- REMOVE AND REPLACE
- GAS TO BE ABLE TO DRIVE THE VEHICLE
- SMOG TEST AND CERTIFICATE
SUZANNE/ JOE P. gave our service a 5 star review on 4/21/2025 -
2019 BMW 330i
Mileage68,800Service Date4/8/2025Services Performed- Technician noticed the CHECK ENGINE LIGHT WAS ON even before bringing the vehicle in, and called the customer to let him know , performed multipoint visual inspection, checked Oil, Fluids ,Tires and Brakes. With the customer's pre approval on the total amount to do the brake job for front and rear, the technician ordered the parts but he could not find the WHEEL LOCK TO REMOVE THE WHEELS. Then our technician ordered one, finally removed and replace the front and rear brake pads, sensors, and rotors, checked for a basic safety, test drove the vehicle, no problems on the brakes now but the check engine light is on, and the vehicle needs 4 new tires.
- Replace front brake pads linings and front brake disc rotors. Clean and repack wheel bearings if equipped. Clean and lubricate brake calipers and slide mechanisms. Check and fill brake fluid. Bleed air from system. Road test vehicle.
- Replace rear brake pads linings and rear brake disc rotors. Clean and repack wheel bearings if equipped. Clean and lubricate brake calipers and slide mechanisms. Check and fill brake fluid. Bleed air from system. Road test vehicle.
HUSSAM B. gave our service a 5 star review on 4/9/2025 -
2010 Jeep Liberty
Mileage181,977Service Date3/24/2025Services Performed- Technician noted the vehicle radiator was replaced last week , and there was no sign of leaking after the work was done. He racked the vehicle up, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System. Our technician noticed coolant is leaking from WATER PUMP, HEATER HOSE, and THERMOSTAT that there was sign of leaking last week. Our technician contacted the customer to notify her, and she approved the job recommendation. He then ordered the parts, removed and replaced them, repaired and restored the heater hose, added coolant, waited for the thermostat to kick in, no leaks, no codes, no misfire, took the vehicle for road test drive, no problem now.
- REMOVE AND REPLACE, AND FIX AND PRESERVE THE HEATER HOSE
MARGARET E. gave our service a 5 star review on 3/24/2025 -
2006 Hummer H2
Mileage136,880Service Date2/19/2025Services Performed- Technician noted "the vehicle was towed here, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System." The technician inspected the radiator that had a CRACK in it, and it was leaking, and the customer knew it from another shop.The technician ordered the radiator and thermostat and coolant after the customer gave him authorization. The vehicle has other issues that has to do with sever oil leaking from multiple places of Rear Main Seal, Head Cylinder, and another that is not visible now. The technician removed and replaced the radiator and thermostat, added coolant, turn the engine on, waited for the thermostat to kick in, test drove the vehicle, no warning signs or code or misfire, no OVERHEATING, AND THE GAGE IS NORMAL. He then removed and replaced the wiper blades per request.
- REMOVE AND REPLACE
MOHSEN A. gave our service a 5 star review on 2/19/2025 -
2010 Jeep Liberty
Mileage181,275Service Date2/19/2025Services Performed- The customer had her diagnostic done somewhere else, and wanted us to replace the front driver side CV AXLE. Technician test drove the vehicle to understand the customer's complaint, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System. Our technician also diagnosed the vehicle's radiator is CRACKED and its leaking. It looks like someone tried leak stop but it did not work. So based on the customer authorization, the technician ordered the cv axle, removed and replace it, checked for a basic safety, no problem with this cv axle now. The customer did not want to do anthing with the radiator leak for now.
- RE
MARGARET E. gave our service a 5 star review on 2/19/2025 -
2004 Acura MDX
Mileage175,034Service Date1/14/2025Services Performed- Technician test drove the vehicle to understand the customer's complaint, performed multipoint visual inspection, checked Oil, Fluids, Belts, Battery, Charging System, Tires, Brakes , A/C, and Heating System. Our technician noted that THE VEHICLE HAS MULTIPLE ENGINE CODES FOR EMISSION AND ENGINE PERFORMANCE. TO CHECK THE EVAP SYSTEM THE EVAP SYSTEM WAS SMOKED TO FIND ANY VISIBLE LEAKS. THE SMOKE TEST REVEALED THAT THE PURGE VALVE AND THE EVAP CANISTER VALVE INTERNAL SEALS ARE DEFECTIVE AND ALLOWING FUEL VAPOR TO LEAK OUT, THE GAS CAP SEAL LOOKS WORN OUT AND NOT SEALING CORRECTLY. THE VEHICLE ALSO HAS 1 BAD O2 OXYGEN SENSOR SENDING OUT ERRATIC VOLTAGE TO THE ECM. THE KNOCK SENSORS HAVE A BROKEN WIRE AND THE ECM IS NOT RECEIVING ANY INFORMATION. So at this time, our technician recommends to replace knock sensors, oxygen sensor, , carbon canister, canister purge valve solenoid, and a fuel tank cap. The customer authorized the job recommendation, and the customer chose to pay some down payment and use SNAP FINANCE for the balance. The technician ordered the parts, removed and replaced them, checked carefully for a basic safety, tested and scanned the system, no codes, no misfire now, test drove the vehicle, the customer needs to drive the vehicle for a white to get it ready for smog, if smog test is an issue.
- REMOVE AND REPLACE
- REMOVE AND REPLACE
- REMOVE AND REPLACE
- REMOVE AND REPLACE
MICHAEL N. gave our service a 5 star review on 1/14/2025
Contact Us Today for an Auto Repair Estimate
Our friendly and knowledgeable staff is always happy to answer any questions you may have and will keep you informed throughout the entire repair process. So why pick us for all your Costa Mesa auto repair needs? The answer is simple: expertise, customer service, affordability, convenience, and quality. Contact us today to schedule your appointment and experience the difference for yourself.
Hours
Mon-Fri : 8am-5pmSaturday : 8am-2pm
Sunday : Closed
Address
A1 Auto Mechanics
2945 Randolph Ave Unit A
Costa Mesa, CA 92626
