Proudly serving Porsche owners throughout the Inland Empire including Montclair, Ontario, Claremont, Upland, Rancho Cucamonga, Pomona, San Dimas, and Riverside, CA.
Conveniently located at the 10 fwy and Central Ave exit.
Porsche Auto Repair in Montclair CA
Trusted by Porsche owners across Southern California for 25+ years.
Porsche Auto Repair | 911 Design – Montclair, CA
Porsche Auto Repair
Choose 911 Design when it comes to servicing and maintaining your most prized possession. We employ specialized Porsche mechanics and can provide all service needs for your Porsche, as we provide the best Porsche repair in Montclair. Our many years of experience servicing and repairing all models of Porsches ensures you that we keep your car in the best possible condition. When you bring your Porsche in for maintenance, we will perform a comprehensive multi-point check to ensure that no part of your vehicle is overlooked and is underperforming. We pride ourselves on being the trusted dealer alternative for Porsche owners throughout the Inland Empire and greater Los Angeles area.
PORSCHE MAJOR & MINOR MAINTENANCE
No matter how many years your Porsche has been delivering driving pleasure, it should continue to be as powerful, practical and responsive as it was when it left the Porsche factory. To ensure your Porsche continues to perform to its optimum level and to protect your investment, it is important that you maintain the recommended service intervals.
All Porsche servicing and repairs are carried out to the highest standards by our experienced technicians. We are committed to giving you excellent service and will give our complete attention to your Porsche.
We service all Porsche models from:
Porsche 911 Carrera 993, 996, 997, 991, Porsche Boxster 986, 987, 981, Cayenne, Cayman, Panamera and Macan.
PORSCHE INTERMEDIATE MAINTENANCE
The Intermediate Maintenance required message will be illuminated on the display when the service is due. This will generally happen at different times during the vehicle’s lifetime. This service is due based on mileage or time dependent. If the mileage for maintenance has not been reached, the service must be performed every 2, 6, 10 years the latest.
FREQUENTLY ASKED QUESTIONS
Is 911 Design a Porsche dealership?
No. 911 Design is an independent Porsche specialist, not a dealership. This means you get factory-trained technicians with deep Porsche expertise without dealership pricing or wait times. We are a trusted dealer alternative for Porsche owners throughout the Inland Empire and greater Los Angeles area.
What Porsche models do you repair and service?
We service all Porsche models including the 911 (993, 996, 997, 991, 992), Boxster (986, 987, 981, 982), Cayman (987c, 981c, 982c), Cayenne, Panamera, and Macan. This includes both air-cooled and water-cooled variants across all generations.
What is included in a Porsche multi-point inspection?
Every vehicle we service receives a comprehensive multi-point inspection covering engine and fluid levels, brake condition and pad thickness, tire condition and pressure, suspension and steering components, belts and hoses, lighting, and a diagnostic scan for fault codes. We report any findings to you before proceeding with any additional work.
What does the Porsche Intermediate Maintenance message mean?
The Intermediate Maintenance reminder appears on your Porsche's instrument display when a service is due based on mileage or elapsed time. It typically triggers at 2, 6, or 10 year intervals if the mileage threshold has not yet been reached. This service covers items beyond a standard oil change including inspection of brake fluid, filters, and other time-sensitive components.
Can you work on a Porsche that has been modified or has aftermarket parts?
Yes. We work on both stock and modified Porsche vehicles. Our technicians are experienced with common aftermarket upgrades including suspension modifications, exhaust systems, and performance components. We also carry a curated selection of aftermarket parts in our online store.
How do I know if my Porsche needs repair vs. routine maintenance?
Routine maintenance follows a scheduled interval regardless of symptoms — oil changes, filter replacements, and fluid services fall into this category. Repair is triggered by a specific symptom, fault code, or failed inspection item. If you are unsure which applies to your situation, bring your Porsche in for a diagnostic inspection and we will assess its condition and advise accordingly.
