2017 Mercedes-Benz C350e Engine Makes A Ticking Noise

Ticking Noises in 2017 Mercedes-Benz C350e Engine: Causes and Solutions

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Reviewed by
Andrew Hajjar
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 C350e 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 C350e 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 initial diagnostic steps to take for a ticking noise in the engine of a 2017 Mercedes-Benz C350e?

When faced with a ticking noise in the engine of your 2017 Mercedes-Benz C350e, it's essential to approach the diagnosis methodically. Start by checking the oil level, as insufficient oil can lead to increased friction and noise. Next, inspect the drive belts for any signs of wear or damage, as these can also contribute to unusual sounds. If the noise persists, examine the timing chain, since a malfunction here can be a significant source of ticking. Additionally, take a closer look at the valve train components; worn or improperly adjusted parts can create similar noises. Don’t overlook the exhaust system, as leaks can sometimes mimic engine sounds. Finally, using a diagnostic scanner to check for error codes can provide valuable insights into underlying issues. By following these steps, you can effectively narrow down the cause of the ticking noise and determine the best course of action for repairs.

What could be causing the ticking noise in the engine of a 2017 Mercedes-Benz C350e?

When faced with a ticking noise in the engine of a 2017 Mercedes-Benz C350e, it's crucial to understand the common problems that could be contributing to this issue. One of the primary culprits could be valve train issues, where worn lifters or malfunctioning valves may create an audible ticking sound. Additionally, low engine oil levels can lead to insufficient lubrication, causing metal components to rub together and produce noise. Another potential source of the ticking could be a faulty timing chain tensioner, which may fail to maintain proper tension on the timing chain, resulting in irregular sounds. An exhaust leak is also a possibility, as escaping gases can create a ticking noise that mimics engine problems. Lastly, malfunctioning fuel injectors can contribute to this issue, as their operation within the engine can produce a distinct ticking sound. For those looking to diagnose the problem themselves, checking the oil level, inspecting the valve train, and listening for exhaust leaks can be good starting points. However, for a definitive diagnosis and to prevent further damage, consulting a qualified mechanic is always recommended.

How urgent is it to address the ticking noise in the engine of a 2017 Mercedes-Benz C350e?

Addressing a ticking noise in the engine of a 2017 Mercedes-Benz C350e is crucial for several reasons. First and foremost, early detection of such noises can significantly reduce the risk of further damage to engine components, which can be costly to repair. Ignoring these sounds may lead to more severe mechanical failures, ultimately compromising the vehicle's performance and safety. Additionally, unusual engine noises can indicate underlying issues that, if left unresolved, could pose safety hazards while driving. For DIY enthusiasts, understanding the urgency of this situation is essential; taking prompt action not only helps maintain the vehicle's optimal performance but also ensures a safer driving experience. Therefore, if you notice a ticking noise, it is advisable to investigate the source immediately to prevent escalating problems and to preserve the longevity of your Mercedes-Benz C350e.

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