Expert Mercedes-Benz maintenance and repair from ASE-certified technicians at ExperTec Automotive Costa Mesa.
A Mercedes-Benz in Costa Mesa might be a C-Class running errands to South Coast Plaza, a GLC heading toward Newport Beach or an E-Class covering the Newport Blvd corridor every day. ExperTec Automotive at 1934 Newport Blvd gives each one careful, well-documented service.
Mercedes’ Flexible Service System alternates Service A and Service B, and short city trips plus salt air mean we pay extra attention to oil condition, brakes, battery health and the auxiliary battery that many models depend on. Our technicians are familiar with the M274, M276 and M256 engines, the 7G-Tronic and 9G-Tronic transmissions and Airmatic suspension.
With ASE-certified technicians, dealer-level scan tools and OEM-quality parts, ExperTec has served Orange County for more than 30 years. We have been voted OC’s best auto repair 10 years in a row and back our repairs with a 3-year/36,000-mile nationwide warranty.
Most modern Mercedes-Benz vehicles use the Flexible Service System, which displays a reminder for Service A or Service B in the instrument cluster. Service A typically comes first, at about 10,000 miles or 1 year, and covers a synthetic oil and filter change, fluid checks, tire inspection and a brake check. Service B follows about a year or 10,000 miles later and adds a cabin filter replacement, brake fluid exchange and a more thorough inspection. The two then alternate, while items like spark plugs, air filters, transmission fluid and coolant are added at set mileage or time milestones. Short trips and heavy traffic can bring reminders up sooner.
Upon completion of the standard maintenance tasks we provide an additional 30-point inspection to make sure that all components in your Mercedes-Benz are up to date and working well.
~10,000 miles / 1 year (then alternates)
~20,000 miles / 2 years (then alternates)
At ExperTec Automotive, we’ve been repairing Mercedes-Benz vehicles in Orange County for over 30 years. Even well-built Mercedes-Benz models develop specific problems as they age, and 55 Freeway commutes and coastal salt air add to the wear. Our Costa Mesa technicians diagnose these issues quickly, follow Mercedes-Benz factory repair procedures and use quality parts you can trust.
Some 3.5L M272 V6 engines from roughly 2005 to 2008, found in models like the C-Class, E-Class, ML and SLK, are known for premature wear of the balance shaft or idler gear. The result is a check engine light with camshaft and crankshaft correlation codes and rough running. Mileage varies by model/engine. We confirm the fault and explain repair options.
Four-cylinder engines like the M271 and M274, used in the C250, C300, E300 and GLC 300, are known for camshaft adjuster magnets that leak oil into the wiring harness, and some engines develop timing chain stretch with a cold-start rattle. We replace leaking magnets, check harness damage and measure cam timing with dealer-level tools.
Many Mercedes engines can develop leaks from the oil cooler seals, oil filter housing, valve covers and timing covers as gaskets harden with heat. Oil dripping onto hot exhaust parts causes smoke and a burning smell, especially in summer traffic. We dye-test to find the true source and reseal it with OEM-quality gaskets.
S-Class, E-Class, CLS, ML, GL and GLS models with Airmatic suspension can develop leaking air struts, a failing compressor or a faulty valve block with age. Signs include the car sitting low after parking, a suspension warning message or a harsh ride. We pinpoint leaks, test the compressor and relay and replace only the failed parts.
The 7G-Tronic automatic transmission used across many Mercedes models is known for conductor plate and speed sensor failures, causing harsh shifts, a stuck gear or limp mode. Old fluid can make shift quality worse. We read transmission codes with dealer-level tools, service the fluid and filter, and replace or program the conductor plate when needed.
BlueTEC diesel models such as the ML350, GL350, GLE and E-Class use an AdBlue (DEF) system and NOx sensors to control emissions. Heaters, pumps and sensors can fail, triggering countdown warnings that can limit restarts. Short trips also clog the DPF. We diagnose the full emissions system and replace faulty components.
Our Costa Mesa auto repair shop is on Newport Boulevard, the main route between the 55 Freeway and Newport Beach, a short drive from Triangle Square and the OC Fair & Event Center.
Between 55 Freeway commutes, coastal trips to Newport and short around-town errands, Costa Mesa cars see a lot of heat, salt air and stop-and-go driving. That’s why our Costa Mesa technicians focus on catching problems early, explaining your options clearly and fixing it right the first time.
Neighborhoods we serve: Eastside Costa Mesa, Westside Costa Mesa, Mesa Verde, College Park, South Coast Metro, Newport Heights.
Nearby cities: Newport Beach, Irvine, Santa Ana, Huntington Beach, Fountain Valley.
Proud member of the Costa Mesa Chamber of Commerce.
1934 Newport Blvd, Costa Mesa, CA 92627
Mon–Fri 7:30AM–6PM · Sat 7:30AM–4PM · Sun Closed
Book in Costa MesaGet DirectionsView Shop DetailsOur Costa Mesa shop is at 1934 Newport Blvd, Costa Mesa, CA 92627. Call (949) 645-7722 or book online.
Monday through Friday 7:30 AM to 6:00 PM and Saturday 7:30 AM to 4:00 PM. We are closed on Sunday.
Service A is a basic visit with a synthetic oil and filter change, fluid checks and tire and brake inspections. Service B includes everything in Service A plus a cabin filter replacement, brake fluid exchange and a more detailed inspection, and the two generally alternate about every year or 10,000 miles.
Yes. Every repair includes a 3 Year / 36,000 Mile Nationwide Warranty plus 12 Month / 12,000 Mile Roadside Assistance.
Book online in minutes at ExperTec Automotive Costa Mesa. Online appointments are drop-off appointments; for a waiting appointment, please call the shop.
Mon–Fri 7:30AM–6PM · Sat 7:30AM–4PM. All appointments booked online are drop-off appointments. For waiting appointments, please call the shop.
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Voted Orange County’s Best Auto Repair 10 years in a row by readers of the Orange County Register. Book online in minutes or call your nearest shop.
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