Cottman Transmission & Total Auto Care
11780 Holly Auto Center Lane, Waldorf, MD 20601 301.645.4055
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Keeping Your Cool (Coolant leak repair)

If there’s one thing you should pay attention to with your vehicle, it’s the temperature gauge. It’s the one that may say C---H (that means “cold---hot”).  Or maybe ...
Published on: May 10, 2026

Differential Essential (Differential Fluid Exchange)

What's the dif? To an automotive technician, it's the differential, a part of your vehicle that helps direct power from the engine to the wheels.  The differential is a gearbox that enables the d...
Published on: May 03, 2026

How Tired Are Your Tires? (Tire replacement)

Of the things you think about most, your tires are probably pretty far down the list. That’s understandable because today’s tires are engineered to do their job without needing you to pay ...
Published on: Apr 26, 2026

Why is Air Not Coming Out of My Vents?

You climb inside your vehicle, start the ignition, and reach for the fan control for the heating or air conditioning.  But when you try to crank it up, no air comes out of the vents. It can make ...
Published on: Apr 19, 2026

When Your Tires are Tired (Tire Replacement)

Tires are so reliable these days that few drivers pay much attention to them.  But tires wear out.  They have a tough job since they are the only point of contact between your vehicle and th...
Published on: Apr 12, 2026

Avoiding Exhaustion (EGR Valve Replacement)

No, ERG isn’t the sound a pirate makes.  It’s a part in your vehicle that recirculates exhaust gas to reduce certain gases and pollutants in the atmosphere.  In fact, ERG stands ...
Published on: Apr 06, 2026

How Cool is That! (Coolant level sensor replacement)

Your vehicle’s engine runs hot.  It should, since it’s a series of little explosions that create the power that gets you going where you want to go.  To keep the engine cool, eng...
Published on: Mar 16, 2025

Easy on the Wheel (Power Steering)

Steering a vehicle these days doesn't take much effort, but if you got behind the wheel back before power steering was invented, you'd need to practically have the strength of Hercules to turn the whe...
Published on: Mar 09, 2025
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