Why does the check engine light in my CLS550 turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your CLS550 testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Mercedes-Benz CLS550 engine noises bad?

Strange engine sounds can be a sign something’s off in your Mercedes-Benz CLS550. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Mercedes-Benz CLS550 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I put water in my Mercedes-Benz CLS550 radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What can cause a CLS550 engine to suddenly stop?

Reasons your CLS550 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Where can I go for Mercedes-Benz CLS550 repair?

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.

Reliable Repairs for 2017 Mercedes-Benz CLS550 Engines

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2017 Mercedes-Benz CLS550 Trim Options

Select your Mercedes-Benz CLS550 trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

V8/4.7L

2017 Mercedes-Benz CLS550 Repair

Stuff wears out. Even your Mercedes-Benz CLS550’s engine parts and components will change. We’re here to help when something stops working. Click on a repair below to learn more about 2017 Mercedes-Benz CLS550 repairs.

We Care for Mercedes-Benz CLS550 Engines

Mercedes-Benz CLS550 engines are known for their reliability. You probably thought about that when you got it. 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 2017 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. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 2017 Mercedes-Benz CLS550

As soon as your CLS550 check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your combustion, Possible causes can include a failing oxygen sensor, worn spark plug, a problem with your catalytic converter, or an engine vacuum leak, to name a few potential sources. Bring your CLS550 in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. Other signs it's time for Mercedes-Benz CLS550 engine service might include essential fluid leaks, or misfiring.

Engine Repairs for Your 2017 CLS550

If your 2017 Mercedes-Benz CLS550 needs engine repair, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We seek to give you all the info you need to make a smart decision about our services. By choosing Firestone Complete Auto Care for CLS550 engine repairs and you can feel confident knowing that we use Mercedes-Benz-approved parts and components like the serpentine belt, valve guide seal, fuses, or other parts.

2017 Mercedes-Benz CLS550 Engine Q&A

Why does the check engine light in my CLS550 turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your CLS550 testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Mercedes-Benz CLS550 engine noises bad? Strange engine sounds can be a sign something’s off in your Mercedes-Benz CLS550. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Mercedes-Benz CLS550 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I put water in my Mercedes-Benz CLS550 radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What can cause a CLS550 engine to suddenly stop? Reasons your CLS550 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Where can I go for Mercedes-Benz CLS550 repair? 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.