2013 Mercedes-Benz S350 Won't Start

Common Causes for Your 2013 Mercedes-Benz S350 Not Starting and How to Resolve Them

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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 2013 Mercedes-Benz S350 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 2013 Mercedes-Benz S350?

To diagnose the starting issue in your 2013 Mercedes-Benz S350, begin with the simplest checks to rule out common problems. Start by inspecting the starter's solenoid and the starter relay, as these components are often the culprits behind starting failures. If these appear to be functioning correctly, utilize a diagnostic scanner like the YOUCANIC, which can provide insights into various systems within your vehicle. This tool is particularly useful for identifying error codes that may indicate underlying issues. For a more comprehensive analysis, consider the YOUCANIC full system diagnostic scanner or the Carsoft 7.4 Multiplexer, both of which are tailored for Mercedes-Benz models. These devices can help pinpoint the exact cause of the starting problem, allowing you to address it effectively and potentially save on costly repairs. By following this structured approach, you can systematically eliminate possibilities and arrive at a solution with confidence.

What are the common problems that could cause a 2013 Mercedes-Benz S350 to not start?

When troubleshooting a 2013 Mercedes-Benz S350 that won't start, it's essential to consider several common problems that may be at play. One of the first areas to check is the battery, as a weak or dead battery is often the primary culprit behind starting issues. If the battery is functioning properly, the next component to inspect is the starter motor, which is responsible for turning the engine over; a malfunction here can prevent the car from starting altogether. Additionally, the fuel system plays a critical role in engine performance, so ensure that there are no blockages in the fuel filter or issues with the fuel pump that could hinder fuel delivery. Another potential issue could be the ignition switch; if this component is faulty, it may not send the necessary signal to start the engine when the key is turned. Lastly, don't overlook the spark plugs, as worn or defective plugs can lead to ignition problems, making it difficult for the engine to start. By systematically examining these areas, you can effectively diagnose and address the starting issues with your Mercedes-Benz S350.

How urgent is it to diagnose and fix the starting issue in a 2013 Mercedes-Benz S350 that won't start?

When faced with a starting issue in a 2013 Mercedes-Benz S350, the urgency to diagnose and resolve the problem cannot be overstated. A vehicle that fails to start not only poses immediate safety concerns, especially if it occurs in an unsafe location, but it can also lead to more severe complications if left unaddressed. Ignoring the symptoms may result in further damage to critical components, which can escalate repair costs significantly. Additionally, a non-starting vehicle disrupts daily life, making it essential to restore functionality as quickly as possible. The diagnostic process, while potentially complex, is crucial for identifying the root cause of the issue, and enlisting the help of a qualified mechanic can expedite this process. Moreover, if the car requires towing, the associated costs can quickly add up, making prompt action even more financially prudent. In summary, addressing the starting issue in your Mercedes-Benz S350 without delay is vital for ensuring safety, preventing additional damage, maintaining convenience, and minimizing overall expenses.

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2013 Mercedes-Benz S350 Starting Issues & Solutions