Why does the check engine light come on when I start my CLS550?

It’s usually normal for your check engine light to turn on upon ignition. This is just your CLS550 testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why does my Mercedes-Benz engine sound different?

Strange under-the-hood noises can point to problems within your Mercedes-Benz CLS550 engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz CLS550 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my Mercedes-Benz CLS550 radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your CLS550 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause the engine in my CLS550 to suddenly stop?

Your CLS550 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes Mercedes-Benz CLS550 engines?

Your local Firestone Complete Auto Care has you covered with expert CLS550 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 2012 Mercedes-Benz CLS550

Learn about

2012 Mercedes-Benz CLS550 Trim Options

Select your Mercedes-Benz CLS550 trim level to learn more about Mercedes-Benz-recommended engine repair. Even Mercedes-Benz CLS550 parts will get older and change.

V8/4.7L

Mercedes-Benz CLS550 Repairs and Services

Nothing stays the same forever. Even your Mercedes-Benz CLS550’s engine parts and components will change. When something breaks, we're ready. Select a repair or category to learn more about 2012 Mercedes-Benz CLS550 services.

We’re Trained to Care for Mercedes-Benz CLS550 Engines

Mercedes-Benz CLS550 drivers trust that their CLS550 will take them near and far. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Things can go sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 2012 Mercedes-Benz CLS550 engine repairs. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Mercedes-Benz CLS550 engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Check Engine Light on 2012 Mercedes-Benz CLS550

If your CLS550 check engine light is on, it’s time to get it looked at. A check engine light that’s on or flashing could be a symptom of a serious problem in your car’s ignition, Causes may include a faulty oxygen sensor, damaged spark plug, a clogged catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Stop by your local Firestone Complete Auto Care to get your CLS550 issues diagnosed and we'll determine exactly why your check engine light is on. engine rattling, burning smells, or misfiring.

Engine Repairs for Your 2012 CLS550

If your 2012 CLS550 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a repair can wait, we'll let you know. We'll also tell you if it's necessary for your safety. We seek to give you all the info you need to make a smart decision about our services. Turn to Firestone Complete Auto Care for your 2012 CLS550 engine repairs and you can feel confident knowing that we use Mercedes-Benz-approved parts and components like the timing chain or belt, motor oil seal, fuses, or another part.

Questions About 2012 Mercedes-Benz CLS550 Engines

Why does the check engine light come on when I start my CLS550? It’s usually normal for your check engine light to turn on upon ignition. This is just your CLS550 testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my Mercedes-Benz engine sound different? Strange under-the-hood noises can point to problems within your Mercedes-Benz CLS550 engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz CLS550 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my Mercedes-Benz CLS550 radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your CLS550 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my CLS550 to suddenly stop? Your CLS550 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes Mercedes-Benz CLS550 engines? Your local Firestone Complete Auto Care has you covered with expert CLS550 engine repair. Schedule an appointment today and see us at one of our thousands of locations.