Trusted Services Without Surprises
David Marks, owner and founder of Quality Auto STL, is an ASE Certified Master Technician and a top expert in Pre-Owned Car Sales in the St. Louis area. David Marks is a graduate of Ranken Technical College with over 2 decades of extensive hands-on training in the industry. David has worked as an automotive technician servicing and maintaining light trucks and cars since 1999. Through his career, David has worked for various types of vehicle repair facilities, from major dealers to independent shops, while also growing his extensive knowledge in part sales. This valuable experience allows David to provide the best quality service for all of your auto needs.
Change oil, lube chassis, check fluids
Replace wiper blades
Inspect brakes, steering & suspension, inspect or replace air filter & cabin filter
Change transmission/differential fluids; replace belts & hoses, fuel filter
For maintenance information specific to your vehicle, please check your vehicle owner’s manual for manufacturer’s recommended maintenance schedule.
*Call for additional information.
~ All services are by appointment only ~
Routine auto maintenance will increase the life of your car. It also helps you avoid costly repairs, SAVING YOU MONEY!
What people say about us
"Dave is an all around honest mechanic. Very professional and gets the job done at a very reasonable price. I'm always happy when I leave. Thanks Dave."
"Very professional quick and I highly recommend this shop."
"Great Service at a Great Price, my whole family love Dave's work, and he saved me $2,000 by letting me no that my problem was on the recall list!."
"Dave has personally worked on my vehicle and performed quality service at such a reasonable price, I have recommended to my company that he be our main fleet mechanic. 5 star rating without a doubt."
"Once again Dave has SAVED ME HUNDREDS of dollars! He'll give you an honest answer to what really needs to be fixed and do it for an awesome price."
"Great to work with. He does a wonderful job at a fair price."
What we are proud of
Replacing oil pan gasket on a 2002 Saturn SL1.
Replacing a stater motor, driver front axle, & oxygen sensor in 2002 Hyundai Elantra..
Replacing lower intake manifold gasket on a 2000 Ford Explorer.
Replacing a water pump on a 2001 Dodge Neon.
Got the new timing chains, guides, and tensioners installed on 2006 Cadillac CTS. Time to put rest this engine back together!
Replacing valve cover gasket, it was leaking oil onto the spark plugs. Also replacing spark plugs, plugs wires, thermostat, and flushing cooling system on a 2002 Kia Rio.
Replacing a water pump on a 2002 Saturn SL1.
Replacing leaking valve cover gasket on a 2002 Mazda 626. This car was leaking oil on the exhaust. Thus after the car was driven, the driver would smell burnt oil.
We are currently working on replacing a timing belt on a 2000 Saturn. Did you know that a timing belt is something that you should replace as part of regular maintenance with your vehicle, as failing to do so can cause major damage to your car's engine. Please feel free to contact us about any questions related to the timing belt of your vehicle.
Call and schedule an appointment today!
Call and schedule an appointment today!
Replacing rear axle seals and rear brakes on a 1995 Chevy One Ton Van.
Did you know?
Almost 900 Million Oil Changes are completed Each Year
Antilock Brakes Were Invented Over 50 Years Ago
Your Car Uses 6 Primary Fluids
The first car radio was invented in 1929
Quality Auto News & More
Quality Auto STL, Built on Foundation of Helping Veterans, Finds Commercial Rental Space in Westport.
David Marks founded Quality Auto STL in 2010. Having worked in the industry since 1999, he jokes he bought a “garage with a house in front of it” to build a business that has gone from a part-time venture to a full-time, profitable career—one set for expansion.
Contact Us & Get Directions
To receive a free estimate*, please fill out the form below. In the comment section include year, make, and model of your vehicle and a brief description of the problem you are experiencing.
*Free estimate excludes check engine diagnostics, electrical diagnostics, and air conditioning