2020 Mercedes-Benz GLE350 Engine Is Stalling

Common Causes of Engine Stalling in Your 2020 Mercedes-Benz GLE350 and How to Resolve Them

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Reviewed by
Andrew Hajjar
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 2020 Mercedes-Benz GLE350 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 2020 Mercedes-Benz GLE350 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.

The most likely symptom of a faulty fuel temperature sensor is a check engine light. When the sensor goes bad, the Engine Control Module signals the driver that there is a problem by turning on the dash light. Poor fuel economy might also be noticed. In some cases, a failing fuel temperature sensor could lead to hard starting of the engine or an engine misfire and poor performance.

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 for a 2020 Mercedes-Benz GLE350 experiencing engine stalling?

When faced with engine stalling in a 2020 Mercedes-Benz GLE350, 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 systems. Next, inspect the fuel system, focusing on the fuel pump, filter, and injectors, since any malfunction here can disrupt fuel delivery and lead to stalling. Following this, examine the ignition system components, including spark plugs and ignition coils, as worn or faulty parts can prevent the engine from running smoothly. Additionally, ensure the air intake system is clear of obstructions, as a clogged air filter can significantly impact engine performance. Don't overlook the importance of checking various sensors, such as the mass airflow and oxygen sensors, which play critical roles in engine management. Lastly, evaluate the electrical system, including the battery and alternator, to rule out any electrical faults that could contribute to stalling. By systematically addressing these areas, you can effectively diagnose and resolve the stalling issue in your GLE350.

What are the common problems that could cause the engine to stall in a 2020 Mercedes-Benz GLE350?

When diagnosing engine stalling in a 2020 Mercedes-Benz GLE350, it's crucial to consider several common problems that could be affecting performance. One of the primary culprits is the fuel system, where issues like a clogged fuel filter or a failing fuel pump can disrupt the flow of fuel to the engine, leading to stalling. Additionally, electrical problems, such as a malfunctioning ignition coil or faulty sensors, can interrupt the engine's operation. Airflow blockages, often caused by a dirty air filter or a defective mass airflow sensor, can also hinder the proper air-fuel mixture, resulting in stalling. Furthermore, the ignition system plays a vital role; worn-out spark plugs or a faulty ignition module can prevent the engine from firing correctly. Lastly, vacuum leaks can create an imbalance in the air-fuel mixture, exacerbating stalling issues. By understanding these potential problems, DIYers can take proactive steps to troubleshoot and maintain their vehicle, ensuring a smoother driving experience.

How urgent is it to address the engine stalling issue in a 2020 Mercedes-Benz GLE350?

When dealing with engine stalling in a 2020 Mercedes-Benz GLE350, the urgency of addressing this issue cannot be overstated. Engine stalling poses significant safety risks, as it can lead to a sudden loss of power while driving, making it difficult to accelerate or maneuver effectively in critical situations. This unpredictability can result in dangerous scenarios on the road, increasing the likelihood of accidents. Moreover, delaying repairs can exacerbate the problem, potentially leading to more severe engine damage and costly repairs down the line. Regular maintenance is key to ensuring your vehicle operates safely and efficiently, so if you notice any signs of stalling, it is crucial to investigate the issue promptly. By taking immediate action, you not only safeguard your own safety but also preserve the integrity of your vehicle, making timely repairs an essential part of responsible vehicle ownership.

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2020 Mercedes-Benz GLE350 Engine Stalling | RepairPal