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A Fuel-Pressure Fault Does Not Automatically Mean the Fuel Pump Is Bad Modern Mercedes-Benz gasoline engines often use direct fuel injection. Instead of spraying fuel into the intake manifold before

A Boost Fault Does Not Automatically Mean the Turbocharger Is Bad Your Mercedes suddenly feels slow. The check-engine light comes on. Maybe the vehicle displays a reduced-power warning or stops

Coolant Loss Is a Symptom. The Leak Is the Diagnosis. A Mercedes-Benz cooling system has one critical job: Keep the engine within its intended operating temperature. When everything is working

Finding Where the Oil Starts—not Just Where It Ends Up You walk into the garage and find a spot of oil underneath your Mercedes. Or maybe there is no puddle

A Small Ventilation Problem Can Create Much Bigger Engine Symptoms The crankcase ventilation system is easy to overlook. It does not have the visibility of a turbocharger, transmission or timing

When Five Warning Lights May Have One Cause Modern Mercedes-Benz vehicles are extraordinarily interconnected. The engine, transmission, suspension, brakes, body electronics, climate control, charging system, driver-assistance features and dozens of

Timing Faults Don’t Always Mean the Timing Chain Has Failed A Mercedes-Benz with a camshaft timing fault, startup rattle or check-engine light can have a serious mechanical problem. It can

Mercedes All-Wheel Drive Is a System, Not a Single Part For many Colorado Mercedes-Benz owners, 4MATIC is part of the reason they bought the car. Mercedes-Benz 4MATIC all-wheel drive is

When Your Mercedes Doesn’t Sit—or Ride—Like It Should A Mercedes sitting low in the driveway is hard to ignore. But the part that has dropped isn’t necessarily the part that