Do you take appointments?

Walk-ins welcome, and you can book online ahead of time so we know you’re coming and have a bay ready. Either way works.

Do you do smog checks and smog repairs?

Yes, smog checks and smog repairs are one of our specialties. If your car fails the smog check, we can diagnose and fix the issue on the spot.

What kinds of cars do you work on?

All makes and models, domestic and import. If it runs, we can fix it.

Where are you located and is there parking?

We’re at 2800 Oakdale Ave in the Bayview neighborhood of San Francisco. There’s easy street parking right out front.

Yes. Visa, Mastercard, Amex, Discover, debit, tap to pay, and cash. No surcharge on debit cards. Credit cards have a 3% processing fee.

Do you offer financing?

Yes, through Sunbit and Affirm. Most repairs from $60 to $10,000 qualify, and checking your rate takes under a minute without affecting your credit.

What’s your warranty?

12 months / 12,000 miles on parts and labor for most repairs. We’ll spell it out in writing on your estimate before any work starts.

How long will my car take?

Most repairs are done same day. Bigger jobs we’ll give you a realistic window when you drop off, and call before any added work.

Do you give written estimates before doing work?

Always. You’ll see the breakdown, parts, labor, and total, before we touch your car. No surprise add-ons.

Can you tow my car in?

Yes, we work with local towing partners and can coordinate pickup. Call us at (415) 648-2226 and we’ll line it up.

Excelsior · Tune-Up

Tune-Up near Excelsior, San Francisco

We do tune-up for Excelsior drivers about 15 minutes from The Excelsior, San Francisco. Our shop is at 2800 Oakdale Ave in The Bayview, family-owned, with owner Frank a 30+ year SF mechanic. Walk-ins welcome, written estimate before any work starts. Below is what a tune-up visit looks like when you come from Excelsior.

Call (415) 648-2226 Book online

What Excelsior cars need

The Excelsior has a high concentration of older, well-loved family cars, Civics, Accords, Camrys, Tacomas, Tundras, plus a fair number of older Nissans, Subarus, and minivans. Cars in this neighborhood tend to be kept a long time, which means we see a lot of higher-mileage maintenance. Things we work on most:

Smog repairs on 12 to 25 year-old daily drivers
Brake jobs and tire wear from the daily commute mix
Timing belts, water pumps, and other 90k / 120k maintenance
Battery / starter / alternator on cars that mostly do short trips
Suspension and alignment after years of city driving

A & C Auto Clinic is a family-owned mechanic and auto repair shop in The Bayview, San Francisco, on Oakdale Ave. Owner Frank has 30+ years as an SF mechanic and has run A & C for more than two decades. Modern tune-ups are not what they used to be. Today it is mostly spark plugs (every 60,000 to 100,000 miles), filters (engine air, cabin air, fuel filter where applicable), and a fuel induction service to clean carbon off the intake valves on direct-injection engines. We tune up your car based on what your specific engine actually needs, not a one-size-fits-all menu.

What is included

Spark plug replacement (with the right plug for your engine, not a generic), ignition coil inspection and replacement if needed, engine air filter, cabin air filter, fuel filter (where serviceable), throttle body cleaning, intake valve cleaning on direct-injection engines, and a full inspection while we are in there.

Spark plug replacement (OEM-spec)
Ignition coil inspection and replacement if needed
Engine air filter
Cabin air filter
Fuel filter (vehicles where serviceable)
Throttle body cleaning
Carbon cleaning for direct-injection engines
Full multi-point inspection

When to tune up

Spark plugs: 30,000 miles for older copper plugs, 60,000 for double-platinum, 100,000 for iridium (most modern cars). Engine air filter: every 30,000 miles or sooner in dusty conditions. Cabin air filter: every 15,000 to 30,000 miles. Carbon cleaning on direct-injection engines: 60,000 to 80,000 miles depending on driving style. We will tell you what is actually due, not what is on a generic checklist.

Why the wrong plug matters

Spark plugs are vehicle-specific. The wrong heat range causes pre-ignition or fouling. The wrong gap causes misfires. We use the manufacturer-spec plug for your engine, which on most cars means NGK or Denso (Toyota, Honda, Subaru, most Asian makes), Bosch (German cars), Motorcraft (Ford), AC Delco (GM), or Autolite (some domestic V8s). If your owner's manual calls for iridium, you get iridium. We do not substitute cheaper plugs to pad the margin.

How you know it is time

Drop in fuel economy, hesitation off idle, an engine that hunts at stop lights, a check engine light with misfire codes, or simply hitting the spark plug interval. Any of those, bring it in and we will tell you what it actually needs.

Coming from Excelsior

If you're near Mission and Geneva, Persia Ave, or Crocker-Amazon Playground, the directions below will get you to the shop in about 15 minutes.

From Mission and Geneva: Geneva east, right on Bayshore, north on Bayshore, left on Oakdale. From the Persia / Russia / France block area: Mission south to Geneva, then same. From Crocker-Amazon / Naples / Cayuga: Geneva east to Bayshore, then north. About 15 minutes most of the day, can be 20 at rush hour.

Tune-Up questions from Excelsior

Real questions, straight answers.

How long is the drive from the Excelsior?+

Most of the neighborhood is 12 to 18 minutes from our door. Geneva and Bayshore are the slowest stretches at rush hour.

Do you work on older Hondas, Toyotas, Subarus?+

Yes. These are some of the most common cars in the Excelsior and we have decades of experience on every common Honda, Toyota, Subaru, and Nissan from the last 30 years.

How often should I tune my car?+

Spark-plug-driven tune-ups are roughly every 60,000 to 100,000 miles depending on the engine. Filters and induction service come up sooner. We will tell you what your car needs based on mileage and condition, not a fixed schedule.

How much does a tune-up cost?+

Wide range. A four-cylinder with easy-access plugs and standard filters is one number. A V8 with coil-on-plug and a twin-turbo direct-injection setup is another. Call with your year, make, and model and we will give you a real estimate.

Will a tune-up fix my rough idle?+

Often yes, if the cause is worn spark plugs, dirty injectors, or a clogged throttle body. If the cause is a vacuum leak, a bad sensor, or a bigger problem, we will diagnose that first. No point in tuning a car that needs a different repair.

Stop By

A & C Auto Clinic

2800 Oakdale Ave

San Francisco, CA 94124

(415) 648-2226

Mon to Fri, 8am to 5pm. Walk-ins welcome. Closed Sat and Sun.

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Tune-Up near Excelsior, San Francisco

What Excelsior cars need

What is included

When to tune up

Why the wrong plug matters

How you know it is time

Coming from Excelsior

Tune-Up questions from Excelsior

Other services we do for Excelsior drivers

Fleet & Commercial

Smog Check

Brake Repair

Tune-Up in other San Francisco neighborhoods