2017 Mercedes-Benz E400 Engine Is Stalling

Common Causes of Engine Stalling in Your 2017 Mercedes-Benz E400 and How to Resolve Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Fuel System
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15% chance it's the
Air Intake System
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55% chance it's
Something else
The most common reasons a 2017 Mercedes-Benz E400 engine is stalling are the fuel system, the air intake system, or the ignition system.
  • Fuel System: A clogged fuel filter or failing fuel pump can restrict fuel flow, resulting in poor engine performance and starting issues.
  • Air Intake System: A dirty or damaged air filter or a malfunctioning mass airflow sensor can restrict airflow, leading to reduced engine performance and efficiency.
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 E400 engine is stalling?

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.

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What are the initial diagnostic steps to take when a 2017 Mercedes-Benz E400 engine is stalling?

When faced with a stalling engine in your 2017 Mercedes-Benz E400, it's essential to adopt a methodical diagnostic approach to identify the root cause effectively. Start by checking for error codes using a diagnostic scanner, as these codes can reveal specific issues within the vehicle's computer system. Next, inspect the fuel system, focusing on the fuel pump, filter, and injectors, since any malfunction here can lead to stalling. Following this, examine the ignition system components, including spark plugs and ignition coils, to ensure they are functioning correctly, as faulty ignition parts can disrupt engine performance. Additionally, verify that the air intake system is clean and unobstructed, as a clogged air filter can significantly impact engine operation. Don't overlook the importance of checking various sensors, such as the mass airflow and oxygen sensors, since malfunctions in these components can also lead to stalling. Finally, assess the electrical system by inspecting the battery, alternator, and wiring connections, as electrical issues can contribute to engine problems. By systematically following these steps, you can effectively diagnose and address the stalling issue in your vehicle.

What are the common problems that could cause the engine to stall in a 2017 Mercedes-Benz E400?

When diagnosing engine stalling in a 2017 Mercedes-Benz E400, it's crucial to consider several common problems that may be at play. One of the primary culprits is the fuel system, where issues such as a clogged fuel filter or a malfunctioning fuel pump can disrupt the flow of fuel to the engine, leading to stalling. Additionally, the ignition system plays a vital role; failing components like ignition coils or worn spark plugs can prevent the engine from firing properly. Sensor failures, particularly with the crankshaft position sensor or mass airflow sensor, can also cause significant disruptions in engine performance. Furthermore, electrical problems, including a weak battery or faulty alternator, can lead to insufficient power for the engine to run smoothly. Lastly, vacuum leaks can alter the air-fuel mixture, resulting in stalling. By understanding these potential issues, DIY enthusiasts can take the necessary steps to diagnose and address the root cause of engine stalling in their vehicle.

How urgent is it to address the engine stalling issue in a 2017 Mercedes-Benz E400?

Addressing the engine stalling issue in a 2017 Mercedes-Benz E400 is of utmost urgency due to the significant safety risks it poses. Stalling can occur unexpectedly, particularly at high speeds or in heavy traffic, increasing the likelihood of accidents and jeopardizing the safety of both the driver and other road users. Furthermore, neglecting this issue can lead to more severe damage to the vehicle's components, resulting in costly repairs that could have been avoided with timely intervention. By addressing the stalling problem promptly, you not only enhance the reliability of your vehicle for daily use but also prevent the inconvenience of unexpected breakdowns. Therefore, it is crucial to prioritize this issue to ensure your vehicle remains safe and dependable on the road.

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