2017 Mercedes-Benz C63 AMG Engine Makes A Ticking Noise

Ticking Noises in 2017 Mercedes-Benz C63 AMG Engine: Causes and Solutions

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
12% chance it's the
Exhaust Leak
0%
88% chance it's
Something else
The most common reasons a 2017 Mercedes-Benz C63 AMG engine makes a ticking noise are low oil level or pressure, an issue with the ignition system, or an exhaust leak.
  • Exhaust Leak: A damaged exhaust manifold or a loose connection in the exhaust system can cause an exhaust leak, resulting in increased noise and potential loss of engine power.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2017 Mercedes-Benz C63 AMG engine makes a ticking noise?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

If the drive belt idler pulley fails, there will be a very audible chirping noise from the front of the engine. This is because the idler pulley bearing is no longer smooth, and rotating causes metal to grind at high speeds. If it is not changed immediately, there is a chance it will become dislodged, or allow the drive belt to slip off. If the belt falls off, the accessory that it drives will no longer function. For instance, if the alternator belt idler pulley fails, the alternator may stop functioning. Also if the pulley begins to wobble, allowing slack in the belt, it will make an extremely loud squeaking or screeching noise, especially on cold starts. This is the belt slipping on the crankshaft pulley, and will require belt replacement once the idler pulley is replaced.

If the drive belt tensioner fails, there will be a very audible chirping, grinding, or rattling noise from the front of the engine. This is because the tensioner pulley bearing is no longer smooth, and rotating causes metal to grind at high speeds. If it is not changed immediately, there is a chance it will become dislodged, or allow the drive belt to lose tension, or break. If the belt falls off, the accessory that it drives will no longer function. Also, if the tensioner spring fails, allowing slack in the belt, it may make an extremely loud squeaking or screeching noise combined with a rattle as the tensioner bounces back and forth under load. The squealing noise is the belt slipping on the crankshaft pulley, and will require belt replacement once the belt tensioner is replaced.

An engine leaking oil does not always make a puddle on the ground. A burning smell may be noticed from the front of the vehicle after driving. This is because engine oil leaks may fall onto hot engine components, especially the exhaust manifold, and burn off before making it to the ground. This poses a risk to the engine because the leak going unnoticed may deplete the engine oil reserve, and lead to an oil starvation issue. Some engine oil leaks only occur while the engine is running, so the leak may be larger than the small spot on the ground makes it seem.

Noises can be accompanied by many annoying or worrisome sensations. Consider the noise of grinding brakes, the noise sounds much like the brake pedal and steering wheel feel. This is important, as random noises can be difficult to replicate without knowing when the sound occurs, what must be done to make the sound, and what sound it is. Any professional technician can replicate and diagnose most noises, but to ensure the vehicle is more quickly diagnosed, make sure you tell your technician these three pieces of information.

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

What are the potential causes of a ticking noise in the engine of a 2017 Mercedes-Benz C63 AMG, and how should I diagnose it?

To effectively diagnose the ticking noise in your 2017 Mercedes-Benz C63 AMG, begin by checking the engine oil level, as low oil can lead to inadequate lubrication and result in ticking sounds. If the oil level is sufficient, listen carefully to the noise to determine when it occurs—whether during acceleration, idle, or deceleration—as this can help identify the source. Next, conduct a visual inspection of the engine compartment, looking for any signs of damage or leaks, particularly around the exhaust system and valve lifters. If the ticking persists, consider the condition of the valve lifters, as worn components may need replacement. Additionally, inspect the exhaust system for any leaks, as these can also produce ticking noises. If you suspect timing chain issues or faulty fuel injectors, further investigation is warranted, as these components can contribute to engine noise as well. Lastly, if you are unable to pinpoint the issue through these methods, consulting a qualified mechanic is advisable, as they can provide a more thorough diagnosis using specialized tools and expertise. By following this structured approach, you can systematically address the ticking noise and ensure your vehicle operates smoothly.

What are the common causes of a ticking noise in the engine of a 2017 Mercedes-Benz C63 AMG?

When you hear a ticking noise coming from the engine of your 2017 Mercedes-Benz C63 AMG, it’s crucial to understand the potential causes to effectively troubleshoot the problem. One of the most common culprits is valve train issues, which may arise from worn lifters or camshaft lobes, leading to irregular engine performance. Additionally, low engine oil levels can exacerbate this noise, as insufficient lubrication causes metal components to grind against each other. An exhaust leak, particularly near the engine, can also manifest as a ticking sound, indicating a need for immediate inspection. Another possibility is a faulty timing chain tensioner, which can create a ticking noise as the timing chain moves improperly. Lastly, a malfunctioning fuel injector may produce a similar ticking sound during operation. While these issues can be investigated at home, it’s advisable to consult a qualified mechanic for a definitive diagnosis to prevent further engine damage.

How urgent is it to address the ticking noise in the engine of a 2017 Mercedes-Benz C63 AMG?

Addressing the ticking noise in the engine of a 2017 Mercedes-Benz C63 AMG is a matter of urgency that should not be overlooked. Early detection of such noises is crucial, as they can indicate underlying issues that, if left unaddressed, may lead to significant engine damage and costly repairs. Common causes of a ticking noise include low oil levels, worn-out components, or problems with the valve train, all of which can compromise the engine's performance and reliability. Ignoring these symptoms not only risks escalating the problem but also poses safety concerns while driving, as engine malfunctions can affect vehicle handling and responsiveness. Therefore, it is highly advisable to consult a qualified mechanic for a thorough inspection and diagnosis. By taking prompt action, you can safeguard your vehicle's health and ensure a safer driving experience.

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