Mercedes-Benz A35 AMG Engine Is Stalling

Common Causes of Engine Stalling in Your Mercedes-Benz A35 AMG and How to Resolve Them

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Reviewed by
Aisha
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 Mercedes-Benz A35 AMG 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 Mercedes-Benz A35 AMG 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.

Troubleshooting Engine Stalling in a Mercedes-Benz A35 AMG

When faced with engine stalling in your Mercedes-Benz A35 AMG, a systematic diagnostic approach can save you time and effort. Start by checking the simplest components first, such as the fuel system and spark plugs. Ensure that the fuel tank is adequately filled and that the fuel pump is functioning properly, as a lack of fuel can lead to stalling. Next, inspect the spark plugs for wear or carbon buildup; replacing them if necessary can often resolve stalling issues. If these initial checks do not yield results, move on to examining the air intake system for blockages or leaks, as proper airflow is crucial for engine performance. Additionally, consider the ignition system, as faulty ignition coils or wiring can disrupt the engine's ability to run smoothly. By following this methodical approach, you can effectively identify and address the root causes of engine stalling, ensuring your A35 AMG operates reliably. Regular maintenance and timely inspections will further help in preventing future stalling incidents, keeping your vehicle in optimal condition.

What to Do When Your Mercedes-Benz A35 AMG Engine is Stalling?

When your Mercedes-Benz A35 AMG engine begins to stall, it’s essential to understand the common problems that could be at play. One frequent culprit is a malfunctioning ignition system, which can lead to inconsistent engine performance. Additionally, issues with the fuel pump can restrict fuel flow, causing the engine to stall unexpectedly. Another area to investigate is the air intake system; blockages or leaks can disrupt the air-fuel mixture necessary for optimal combustion. Regular maintenance is crucial, as neglecting routine checks can exacerbate these issues. If you find yourself unable to pinpoint the problem, consulting a professional mechanic is advisable, especially if your vehicle is still under warranty, as certain repairs may be covered. By being proactive and informed about these common failure modes, you can take the necessary steps to diagnose and potentially resolve the stalling issue, ensuring your A35 AMG runs smoothly.

Why is the Engine Stalling in a Mercedes-Benz A35 AMG?

When experiencing engine stalling in your Mercedes-Benz A35 AMG, it is crucial to act swiftly, as neglecting the issue can lead to serious safety risks and costly repairs. A faulty ignition system, such as worn spark plugs or ignition coils, can disrupt engine performance, while a dirty air filter may restrict airflow, exacerbating the problem. Additionally, a malfunctioning fuel pump can prevent the engine from receiving the necessary fuel, leading to stalling. Ignoring these symptoms not only compromises your vehicle's performance but can also result in more significant damage to critical components like the coil pack or cylinder head. Regular maintenance is essential; ensuring your car is serviced promptly can help identify and resolve issues before they escalate. By addressing these concerns proactively, you can maintain the reliability and performance of your A35 AMG, ensuring a safer driving experience.

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Mercedes-Benz A35 AMG Engine Stalling Causes & Repairs