Falls Road runs straight from Potomac Village to our door
Potomac has no Metro and no MARC, so the car does the work. Falls Road does it in five miles: River Road to Rockville, across I-270, and you are a few minutes from N Stonestreet Avenue. Call ahead and the bay is ready when you get here; walk-ins wait their turn.
MD-189, end to end
Falls Road begins at River Road in Potomac Village and runs just over five miles north into Rockville, with an interchange at I-270 on the way, before it ends near Maryland Avenue. From there it is about a mile across Rockville Town Center to the east side of the tracks: six to seven miles in all from the Village, roughly a quarter of an hour outside rush hour.
If you would rather not wait in Rockville, two Ride On routes connect Potomac to Rockville station, a block from the shop, seven days a week: Route 47 along the Falls Road, Seven Locks Road and Democracy Boulevard side on its way between Rockville and Bethesda, and Route 301 between Tobytown Drive and Rockville station by way of Glenstone, Travilah Road and Shady Grove Adventist Hospital. Ride On is currently fare-free. From Rockville station the Red Line and MARC both run downtown, which turns a repair drop-off into a normal commute.
Two-lane roads, long driveways, and what they ask of a car
The county planned the Potomac subregion as a low-density “green wedge”: limited sewer, large lots, a deliberate two-lane road policy and designated rustic roads. It is why Potomac looks the way it does, and it shapes what these roads ask of a car.
Alignment and tires
Narrow shoulders, gravel driveways and the odd pothole on a rustic road knock the toe and camber out. A car that pulls, or tires wearing on one edge, is a wheel alignment before it is a new set of tires.
Suspension
Long driveways and lanes without curbs are hard on shocks, struts and bushings. A clunk over the bumps or a bounce that keeps going gets checked on the lift. Brakes & suspension.
Short trips
In recent Census estimates nearly four in ten Potomac workers work from home and about half drive alone, with two cars the norm per household. Cars that mostly do short local runs need their maintenance schedule kept, not skipped because the mileage looks low.
The state inspection is here. The emissions test is not.
Selling or buying a used car in Potomac means a Maryland Safety Inspection from a licensed station before the MVA will title it. Karnon Automotive is one, and a car that fails can be repaired and re-inspected without leaving the shop. The state’s VEIP emissions test is a different trip: the nearer of Montgomery County’s two stations is at 15910 Chieftain Ave in Derwood, roughly ten miles from Potomac Village by Falls Road, I-270 north and Shady Grove Road. The nearest MVA branch is Walnut Hill at 16520 S. Westland Dr in Gaithersburg; the full-service branch with a self-service emissions kiosk is at 15 Metropolitan Grove Rd.
Karnon Automotive: locally owned in Rockville since 2008, ASE Master Certified technicians, quotes before work, and technicians who speak English, Spanish and French. Foreign and domestic, German sedans and family SUVs included.