Mercedes-Benz Repair & Service in San Marcos, Texas
Prestige, performance, and precision engineering. Riley Auto Care & Transmissions has been servicing Mercedes-Benz vehicles in San Marcos, TX since 1978.
Mercedes-Benz Models We Service
Don't see your model? We service all Mercedes-Benz vehicles — call us to confirm.
Services for Mercedes-Benz Vehicles
- Transmission Rebuild & Repair
- Transmission Flush & Service
- Engine Diagnostics & Repair
- Brake Service & Replacement
- A/C Service & Recharge
- Oil Change & Fluid Services
- Electrical Diagnostics
- Suspension & Steering Repair
- General Maintenance
- 7G-Tronic / 9G-Tronic Transmission Service
- European Import Diagnostics
- BlueTEC Diesel Service
- Air Suspension Service
About Mercedes-Benz Service at Riley Auto Care
Mercedes-Benz has defined automotive luxury for over a century, producing vehicles that combine breathtaking performance with unmatched refinement. From the elegant C-Class and E-Class sedans to the commanding GLE and GLS SUVs, every Mercedes-Benz is a showcase of German engineering at its finest. At Riley Auto Care & Transmissions, we have the diagnostic tools and technical knowledge to service Mercedes-Benz vehicles with the precision they demand.
Mercedes-Benz's 7G-Tronic and 9G-Tronic automatic transmissions are sophisticated units that require Mercedes-approved ATF fluid and precise service procedures. These transmissions are often labeled "lifetime fill," but regular fluid service dramatically extends their operational life and prevents costly valve body and solenoid failures. We perform proper Mercedes transmission services using the correct 236.14 or 236.15 specification fluid.
For Mercedes-Benz Sprinter van owners — whether used for commercial work or personal transport — we provide comprehensive diesel service including EGR maintenance, fuel injector cleaning, and AdBlue/DEF system care. The AIRMATIC air suspension system found on E-Class, S-Class, and GLE models is another area of expertise, as air strut failures and compressor wear are common on higher-mileage vehicles. Serving Mercedes-Benz drivers throughout the area, we provide the European-caliber service your vehicle was engineered to receive.
Why Bring Your Mercedes-Benz to Riley?
Family Owned Since 1978
Over 45 years of hands-on experience with all makes and models.
Warranty on Repairs
We stand behind our work with a warranty on parts and labor.
ATRA Certified
Transmission specialists certified by the Automatic Transmission Rebuilders Association.
Ready to Schedule Your Mercedes-Benz Service?
Call or text us today — we're open Monday through Friday, 8AM to 5:30PM.