Mercedes

Elite Mercedes Repair in Rancho Santa Margarita, CA

At Bobby Grich Auto Repair of RSM, we understand that owning a Mercedes-Benz is about more than just driving. It’s about experiencing the pinnacle of automotive engineering. Our ASE-certified technicians provide dealership-level diagnostics and repairs with the personalized care and integrity that define our brand. Backed by a lifetime warranty on parts and labor, we ensure your Mercedes receives the expert attention it deserves.

The Legacy of Mercedes-Benz: Where Innovation Meets the Road

Since 1926, Mercedes-Benz has defined automotive excellence, pioneering safety, performance, and luxury in every model. From the executive S-Class to the powerful AMG lineup, these vehicles are engineered for drivers who expect more. With features like PRE-SAFE® systems, 4MATIC® AWD, and advanced suspension design, maintaining a Mercedes demands specialized care.

At Bobby Grich Auto Repair of RSM, we know what makes these vehicles different, and how to keep them performing at their best.

Common Mercedes Issues We Address:

Airmatic Suspension Repairs: Sagging or uneven ride height? Common in models like the S-Class and GL, and expertly handled here.
Electrical System Diagnostics: From infotainment glitches to complex sensor faults, we troubleshoot and repair with precision.
Transmission Concerns (7G/9G-Tronic): We resolve shifting issues, fluid leaks, and calibration problems to keep your drive smooth.

Timing Chain & Balance Shaft Wear: Especially in early V6 engines, we catch these issues early to prevent bigger repairs later.
SBC & Brake System Faults: We service Mercedes’ unique brake technologies with safety and accuracy in mind.

Mercedes vehicles aren’t just high-end, they’re high-tech. That’s why we combine OEM-level tools with experienced, certified technicians who know how to treat them right.

Mercedes Models We Service

Our expertise covers a wide range of Mercedes-Benz models:

Sedans

A-Class
C-Class
E-Class
S-Class

SUVs:

GLA
GLB
GLC
GLE
GLS
G-Class

Coupes & Convertibles

Performance Models

AMG variants across all classes

Comprehensive Mercedes-Benz Services

We offer a full range of services tailored to the unique needs of Mercedes-Benz vehicles:

Service A & Service B Maintenance

Mercedes-Benz recommends alternating between Service A and B to maintain optimal performance and longevity.

Service A (every 10,000 miles or 1 year):

Synthetic oil and filter replacement
Fluid level check and top-off
Tire pressure check and correction
Brake inspection
Maintenance counter reset

Service B (every 20,000 miles or 2 years):

Includes all Service A tasks
Cabin air filter replacement
Brake fluid exchange
Full multi-point inspection

These services protect your vehicle’s performance and extend engine life.

Engine Diagnostics & Repair

We diagnose and repair engine performance issues, including misfires, sensor faults, timing problems, and fuel system concerns.

Brake System Services

From pad and rotor replacements to ABS diagnostics, we maintain braking performance and safety to Mercedes-Benz standards.

Transmission Services

We handle diagnostics, fluid service, and repairs for Mercedes 7G-Tronic, 9G-Tronic, and dual-clutch (AMG/DSG) transmissions, ensuring smooth shifts and drivetrain longevity.

Suspension & Steering Repairs

We repair worn shocks, control arms, bushings, and adaptive systems to preserve ride comfort and handling precision.

Auto Air Conditioning Services

We service R134A and R1234YF systems, repair compressors, and resolve airflow, blend door, and climate sensor issues—ensuring your Mercedes’ dual-zone or tri-zone HVAC system keeps you comfortable year-round.

Precision Wheel Alignment for Mercedes-Benz

Mercedes vehicles are engineered with strict suspension geometry and tight alignment tolerances. Whether you drive an S-Class with AIRMATIC or a performance-tuned AMG, even slight misalignment can affect handling and tire wear. We use the Coats 3D Wheel Alignment System to restore factory specs with pinpoint accuracy, ensuring smooth tracking, even tire wear, and optimal ride quality.

High-Performance Tire Services for Mercedes Vehicles

From luxury sedans to AMG performance models, your tires are a vital part of the driving experience. We offer premium tire replacement, road-force balancing, patch repairs, and rotation services tailored specifically for Mercedes. Our team selects tires that match your vehicle’s performance and load ratings.

Comprehensive Mercedes-Benz Vehicle Inspections

Your Mercedes was built with precision, and it deserves the same in maintenance. From routine safety checks to detailed system diagnostics, we inspect brakes, electronics, suspension, and fluids with the care German engineering demands. Whether it’s part of regular service or a pre-purchase review, we help you drive with confidence.

Built to Last, Backed for Life

Not many shops back their work like we do. Our lifetime warranty on parts and labor sets us apart, giving you total confidence in every service. We also partner with extended warranty companies so you’re always covered.

Built to Last, Backed for Life

Mercedes-Benz Service That Hits All the Right Notes

Master-Level Mercedes Repairs Without the Markup: Skip the dealership drama. Our certified techs deliver high-level repairs using OEM-quality parts and tools designed for Mercedes precision.

Everything You Need, Nothing You Don’t: We keep things easy with flexible financing, digital inspections, and early drop-off, so you can get back to life without skipping a beat.

Lifetime Warranty? Always.: We don’t believe in cutting corners, so we back our repairs for life. Because trust should last longer than your latest service.

Proudly Serving Our Community: As sponsors of local teams and events, we’re as committed to Rancho Santa Margarita as we are to your Mercedes.

Clean Shop. Honest Work. Familiar Faces.: From the polished floors to the friendly service desk, our shop is as professional as it is welcoming, with a nod to our co-founder Bobby Grich’s legacy of excellence.

Early Bird Drop-Off

Online Payments

Financing options via

frequently asked questions

What are your business hours?

We are open Monday – Saturday from 8:00 AM to 5:00 PM . Our flexible hours make it easy to get expert auto repairs at a time that works for you.

Where are you located?

You can find us at 28622 Oso Parkway, Suite A, Rancho Santa Margarita, CA 92688. Our shop is conveniently located for local drivers needing reliable auto care and a new shop opening in Huntington Beach.

What types of vehicles do you work on?

We service all makes and models, including domestic, European, Asian, and electric vehicles like Tesla. Our ASE-certified technicians have the expertise to handle everything from routine maintenance to complex repairs.

Can I book an appointment online?

Yes! Booking an appointment online is fast and easy, allowing you to schedule service at your convenience. However, we also welcome walk-ins and same-day service whenever possible.

Is this a cost-effective alternative to the dealership?

Absolutely! We offer dealership-quality repairs at fair, transparent prices, using high-quality parts backed by a lifetime warranty. Our expert service ensures the same level of care without the high costs.

Do you offer any discounts?

Yes, we offer military, first responder discount, AAA discount throughout the year. Please check our Coupons page for the latest promotions and savings on your next service.

Can I check on the status of my car at the shop?

Yes, you can contact us anytime for an update on your vehicle’s repair status. Our team ensures clear communication so you know exactly when your car will be ready.

Do you offer a warranty on repairs?

Yes! At Bobby Grich Auto Repair, we stand behind our work with a lifetime warranty on parts and labor, ensuring long-term reliability and peace of mind. Additionally, as a Technet-affiliated shop, our lifetime warranty is honored nationwide, so you’re covered wherever the road takes you

what our customers say about us

Schedule Expert Mercedes Care in Rancho Santa Margarita, CA

Ready for expert Mercedes-Benz service without the dealership runaround? Bobby Grich Auto Repair of RSM is your trusted local alternative – professional, personal, and backed for life.

Call or text us at (949) 709-8007 or schedule online.
Visit: 28622 Oso Pkwy Suite A, Rancho Santa Margarita, CA 92688.

Serving drivers throughout Rancho Santa Margarita, Rancho Mission Viejo, Ladera Ranch, Laguna Niguel, Mission Viejo and the surrounding South OC region. Legends on the field. Experts in the shop.