2021 Mercedes-Benz GLS63 AMG Engine Makes A Ticking Noise

Common Causes of Ticking Noises in Your 2021 Mercedes-Benz GLS63 AMG Engine and How to Address Them

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Reviewed by
Bo Fader
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 2021 Mercedes-Benz GLS63 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 2021 Mercedes-Benz GLS63 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.

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 2021 Mercedes-Benz GLS63 AMG, and how should they be diagnosed?

When faced with a ticking noise in the engine of your 2021 Mercedes-Benz GLS63 AMG, a systematic diagnostic approach is essential for identifying the root cause. Begin with a visual inspection of the engine bay to look for any obvious signs of damage, leaks, or loose components. Next, listen carefully to the engine using a mechanic's stethoscope, which can help you pinpoint the source of the noise more accurately. Checking the engine oil level and quality is also crucial, as low or dirty oil can lead to increased friction and ticking sounds. If the noise persists, utilize an OBD-II scanner to check for any error codes that may indicate underlying issues. Should these initial steps not reveal the problem, consider inspecting the timing chain tensioner and fuel injectors, as these components can also contribute to ticking noises. If you are still unable to diagnose the issue, consulting a qualified mechanic is advisable to ensure a thorough and professional assessment. By following this structured approach, you can effectively narrow down the potential causes of the ticking noise and take appropriate action to resolve it.

What are the common causes of a ticking noise in the engine of a 2021 Mercedes-Benz GLS63 AMG?

When diagnosing a ticking noise in the engine of a 2021 Mercedes-Benz GLS63 AMG, it's crucial to consider several common problems that could be at play. One of the primary culprits is valve train issues, which may arise from worn lifters or camshaft lobes, leading to irregular engine sounds. Additionally, low engine oil levels can significantly contribute to this noise, as insufficient lubrication causes metal components to rub together, creating a ticking sound. Another potential source is an exhaust leak, particularly if it occurs near the engine, which can produce a similar ticking noise. The timing chain tensioner is also worth examining; if it malfunctions, it can cause the timing chain to rattle against the gears, resulting in a ticking sound. Furthermore, a malfunctioning fuel injector may emit a ticking noise during operation, and loose or damaged heat shields can vibrate against the vehicle's frame, contributing to the overall noise. For DIY enthusiasts, checking the engine oil level, inspecting the valve train, and examining the exhaust system can be good starting points before consulting a qualified mechanic for a thorough diagnosis.

How urgent is it to address the ticking noise in the engine of a 2021 Mercedes-Benz GLS63 AMG?

Addressing a ticking noise in the engine of your 2021 Mercedes-Benz GLS63 AMG is not just a matter of convenience; it is a critical safety concern that demands immediate attention. Ignoring this symptom can lead to severe engine damage, which may result in costly repairs and compromise the vehicle's performance. The ticking noise could indicate low oil levels, worn-out components, or valve train issues, all of which can escalate if left unchecked. For high-performance vehicles like the GLS63 AMG, the stakes are even higher, as any malfunction can affect not only the car's efficiency but also your safety on the road. Therefore, it is essential to act swiftly by either checking the oil levels yourself or consulting a qualified mechanic to diagnose the problem accurately. By addressing the ticking noise promptly, you can prevent further damage and ensure that your vehicle remains in optimal condition, safeguarding both your investment and your driving experience.

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2021 Mercedes-Benz GLS63 AMG Engine Ticking Noise Explained