2017 Mercedes-Benz E43 AMG Won't Start

Resolve Starting Issues for Your 2017 Mercedes-Benz E43 AMG

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
38% chance it's the
Battery
0%
27% chance it's the
Alternator
0%
20% chance it's the
Starter
0%
15% chance it's
Something else
The most common reasons a 2017 Mercedes-Benz E43 AMG won't start are a dead battery, an alternator problem, or failed starter.
  • Battery: A weak or failing battery can result in difficulty starting the engine and electrical system malfunctions.
  • Alternator: A failing alternator can result in insufficient electrical power, leading to battery drain and electrical system malfunctions.
  • Starter: A faulty starter motor or a weak battery can prevent the engine from cranking properly, leading to starting issues.
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.

What steps should I take to diagnose the starting issue in my 2017 Mercedes-Benz E43 AMG?

To effectively diagnose the starting issue in your 2017 Mercedes-Benz E43 AMG, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by examining the battery, as a fully charged and functional battery is essential for starting the vehicle. If the battery is in good condition, proceed to inspect the starter motor, which is crucial for initiating engine operation. Next, assess the fuel system to ensure that fuel is reaching the engine; problems with the fuel pump or filter can hinder starting. Following this, verify the ignition system components, including spark plugs and ignition coils, as any faults here can also prevent the engine from starting. Utilizing a diagnostic scanner to check for error codes can provide insights into underlying issues, and finally, ensure that the Engine Control Unit (ECU) is operating correctly, as it plays a vital role in the starting process. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the starting problem in your vehicle.

What are the common problems that could cause a 2017 Mercedes-Benz E43 AMG to not start?

When troubleshooting starting issues with a 2017 Mercedes-Benz E43 AMG, it's essential to consider several common problems that could be at play. First, the battery is often the primary suspect; a weak or dead battery can easily prevent the engine from cranking. Therefore, checking the battery's condition and ensuring all connections are secure is a crucial first step. If the battery is functioning well, the next component to examine is the starter motor, as a malfunction here can also hinder the starting process. Additionally, the fuel system should not be overlooked; issues such as a clogged fuel filter or a faulty fuel pump can disrupt fuel delivery, leading to starting difficulties. The ignition system is another critical area to inspect, as faulty spark plugs or ignition coils can prevent the engine from firing. Furthermore, the Engine Control Unit (ECU) plays a vital role in managing engine functions, and any faults here may require professional diagnosis and repair. Lastly, the vehicle's security system, including the immobilizer and key fob, can sometimes cause starting issues if they are not functioning correctly. By systematically addressing these potential problems, owners can effectively diagnose and resolve starting issues with their E43 AMG.

How urgent is it to diagnose and repair the no-start issue in a 2017 Mercedes-Benz E43 AMG?

Addressing a no-start issue in your 2017 Mercedes-Benz E43 AMG is not just a matter of convenience; it is a critical safety concern that demands immediate attention. Ignoring this problem can leave you stranded in precarious situations, whether on a busy highway or in a remote area, significantly increasing the risk of accidents. Moreover, neglecting the symptoms of a no-start condition can lead to further damage to essential vehicle components, resulting in more extensive and costly repairs down the line. This not only affects your wallet but can also diminish the resale value of your vehicle, as potential buyers are often wary of cars with unresolved mechanical issues. By prioritizing the diagnosis and repair of a no-start issue, you ensure that your vehicle remains reliable for daily use, allowing you to maintain your routine without unnecessary disruptions. Therefore, it is imperative to act swiftly to safeguard your safety, protect your investment, and ensure the continued functionality of your vehicle.

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