About Tolker Auto Service

Looking for a reliable and trustworthy auto repair shop in the Gaithersburg area since 1986 ? Look no further! We offer top of the line service for your car at honest and reasonable rates.

Top Services

  • Air Conditioning Recharge
  • Alternator Replacement
  • Brake Pad and Rotor Replacement
  • Catalytic Converter Replacement
  • Radiator Replacement
  • Scheduled Maintenance Service
  • Serpentine Belt Replacement
  • Spark plug Replacement
  • Transmission Fluid Services
  • Water Pump Replacement

Top Vehicles Serviced

  • Acura
  • Audi
  • BMW
  • Honda
  • Hyundai
  • Jeep
  • Mazda
  • Mercedes-Benz
  • Nissan
  • Subaru
  • Toyota
  • Volkswagen


  • 12 mth/12K mi. warranty (whichever comes first) for parts & labor*

Services Offered

  • Air conditioning diagnosis
  • Air conditioning recharge
  • HVAC blower motor
  • Brake master cylinder
  • Brake pad replacement
  • Brake rotor Replacement
  • Brake shoe replacement
  • Radiator replacement
  • Brake system diagnosis
  • Check engine light diagnosis
  • Diagnose my vehicle
  • Electrical system diagnosis
  • Catalytic Converter replacement
  • Oxygen sensor replacement
  • Engine mount replacement
  • Water Pump replacement
  • Exhaust replacement
  • Muffler replacement
  • Fuel pump replacement
  • Fuel system repairs
  • Hybrid battery replacement
  • Hybrid inverter assembly
  • Ignition system diagnosis
  • Coolant system flush
  • Drive belt replacement
  • Engine oil and filter change
  • Minor/external transmission service
  • Serpentine / drive belt
  • Spark plug replacement
  • Timing belt replacement
  • Tire rotation
  • Alternator replacement
  • Battery replacement
  • Starter replacement
  • Suspension ball joint
  • Wheel alignment
  • Tire replacement
  • Axle shaft oil seal replacement
  • Transmission diagnosis

Vehicles Serviced

  • Acura
  • Alfa Romeo
  • Audi
  • BMW
  • Buick
  • Cadillac
  • Chevrolet
  • Chrysler
  • Daewoo
  • Dodge
  • Eagle
  • Fiat
  • Ford
  • Freightliner
  • GMC
  • Genesis
  • Geo
  • Honda
  • Hummer
  • Hyundai
  • Isuzu
  • Jaguar
  • Jeep
  • Kia
  • Land Rover
  • Lexus
  • Lincoln
  • Lucid
  • Maybach
  • Mazda
  • Mercedes-Benz
  • Mercury
  • Mini
  • Mitsubishi
  • Nissan
  • Oldsmobile
  • Plymouth
  • Polestar
  • Pontiac
  • Porsche
  • Ram
  • Rivian
  • Saab
  • Saturn
  • Scion
  • Smart
  • Subaru
  • Suzuki
  • Tesla
  • Toyota
  • Volkswagen
  • Volvo


    • Early drop off
    • Free wifi
    • State inspection
    • Wait on site
    • Driver required to leave vehicle
"They were great .. I was in and out pretty quick and they did a great job with my alignment"
2016 Toyota Corolla
2012 Hyundai Sonata
"done in timely manner"

Response from the shop

"Our waiting room has air condition, tv , free wi fi and convinient electronic chargers. Work was done what customer had asked for it. Time that it took that how long service takes. "

- Dmitry Tepelboym

2007 Volkswagen Passat
"On the recommendation of my insurance company StateFarm, I thought I would try Openbay for the first time. First thing I noticed at the closest and best priced location was no AC in the waiting room and it was like a hotbox with the door closed. The oil change and 95K inspection took 1.25 hours. I asked what all was included with the 95K inspection before service began and I was told that he would check and get back to me. He asked a few moments later, and so I told him about the emergency brake malfunction causing the alert sound and when it occurred. I believed that his inquiry and my response to it would lead to a diagnosis at the very least on how to correct it. I sat in the waiting area for the entire time waiting for the info on the inspection details. At the end of the time, he slid the paper across the counter and said, “Okay, you’re all done.” I asked what they thought was the issue with the parking brake malfunction and I was told, ‘We didn’t look at that.” I was in a hurry at lunchtime so I saw it said 95,000 mile inspection performed on my receipt and I figured I would read the details later. When I finally sat down to review, there were no details at all! I sent a message asking what, if anything, was found after the inspection. I was told: “50% on all the brakes and tires look good with a sound that seemed to be coming from the suspension”. (Was the inspection really performed? I have no way of knowing and do not feel very confident given the lengths I had to go to get a response.) Now I have a vibration and tire noise coming from the front end after the tire rotation that I never had before. I will NOT be taking my car back there ever again. I’m going to go back to my VW dealership or try another garage. I think I might try NTB, (which was not on the list Openbay provided), but NTB quoted a much cheaper price over the phone than the $118 I ‘ended up’ pre-paying for an all-synthetic oil change, and ‘possibly’ a 95K inspection.) The “convenience” of prepaying is not worth the hassle that followed. Get it right the first time by addressing potential issues as they are presented to you as the decision maker and pay for service at the end once you are satisfied that the service you wanted has actually been performed to your level and standards of approval."
"Come to this service for more than 10 years with all kinds of cars I had. Now my son brings his car there. Friendly environment, professional service, always can speed out appointments if have emergency or in a hurry. Would highly recommend this service!"
"Always great service at a fair price. Very honest"
"The best mechanics around, fair prices and great service"
"I usually don't trust taking my car anywhere except its own dealer. However, this place gives u fair price and doesn't add nonsense stuff to your bill. Great experience. Recommended!!"
"Always give great service, honest, fair, speedy, responsive."


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