Mercedes W214 E-Class Wont Start? Here’s Quick Solutions to Most Common Problems

Introduction

As an experienced mechanic with over 20 years of hands on experience, I’ve helped plenty of people struggling when their Mercedes W214 E-Class Won’t Start. And let’s face it, not being able to start your car when you need to drive is super bothersome.

But keep your chin up, you’ve come to the right place, no need to keep googling searches like “Mercedes has difficulty starting“, I got you covered. My name’s Robby, a certified auto mechanic with over two decades of experience, and in this article, I’ll walk you through the frequent causes for why your W214 E-Class refuses to start. I’ll detail all the routine offenders so you can diagnose what’s going on, plus what to do to fix each specific situation. Drawing on my 20 years of firsthand experience, I’ll provide usable troubleshooting tips to get your Mercedes W214 E-Class up and moving as soon as possible!

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So Why Won’t My a Mercedes Start?

Mercedes W214 E-Class wont start

Before we dive into the list of possible faults and fixes, it’s vital to first get on the same page of the core problem. When you climb into your Mercedes W214 E-Class and discover “it won’t start!”, there could be several parts causing the headaches. Perhaps the engine isn’t cranking at all, or possibly it’s cranking but not firing. Or you might hear clicking when you try to start it, but ultimately nothing happens. Each scenario can indicate various mechanical issues.

Common Reasons Why Your Mercedes W214 E-Class Won’t Start

There are a host of reasons why your W214 E-Class won’t start. Typical causes include a weak or drained battery, broken alternator, starter motor complications, fuel system problems, plus electrical or wiring issues. Each of these issues can present differently, requiring specific methods of troubleshooting and fixing to get you back on the open road ASAP. All of which, we’ll delve into.

Symptoms of a Mercedes W214 E-Class That Won’t Start

Recognizing these symptoms will guide you toward the main cause. For instance, when you turn the key and you hear it clicking but no ignition, it often signifies a problem with either fuel delivery or ignition issues.

Analysis of The Reasons Why Your Mercedes W214 E-Class Won’t Start

The first step in solving the no-start hassle is pinpointing the precise source of the issue. So let’s examine the most frequent reasons behind the W214 E-Class refusing to start when you turn the key.

Car Battery Issues Preventing Your Mercedes W214 E-Class From Starting

Car wont start battery is good

In the majority of cases, the most common reason a Mercedes W214 E-Class won’t start comes down to battery troubles. Specifically, a drained or weak battery prevents the engine from cranking. The car’s battery delivers the necessary electrical juice to ignite the engine and energize all your vehicle’s electrical components. Signals of a struggling battery entail sluggish or strained cranking, dim headlights, or a battery alert symbol aglow on the dash. A battery charger can recharge a dead battery if you don’t have the help of another vehicle to jump start it, but do have an electrical socket nearby like at home.  And a portable jump starter lets you charge p the battery without another vehicle, and by the roadside without the need for an electrical socket, so you are never stuck.

Alternator Problems Can Prevent Your Mercedes W214 E-Class Starting

car wont start alternator

The Alternator keeps the battery charged by using engine power while driving. A malfunctioning alternator can easily prevent your Mercedes W214 E-Class from starting since it fails to recharge the battery, depleting it fully so that one day you climb into your wheels and it refuses to start up. Signs of a malfunctioning alternator may include an illuminated battery or alternator caution light on your dash, dim headlights while idling, or a whirring noise from the engine while running.

Starter Motor Failures in a Mercedes W214 E-Class

car wont start wont turn over

The starter is crucial for turning over the engine when you turn the key to start your Mercedes. Should the starter fail, the engine might not crank, preventing your W214 E-Class from starting. Listen for clicking noises when you turn the key or grinding while trying to start, which could indicate starter issues.

Fuel System Issues Can Prevent a Mercedes W214 E-Class From Starting

car wont start fuel filter

This isn’t about running out of gas like a silly goose. Instead, it’s problems in the fuel system itself that could leave your W214 E-Class unable to start. Your car uses gas uses gas to combine with oxygen and runs the engine. So problems here like a clogged fuel filter or failing fuel pump relay may mean the engine lacking the fuel it needs to start. Fuel injectors can also get clogged over time, so try a fuel injector cleaner like Red Line to clear any blockages and improve starting.

Electrical System or Wiring Problems in a Mercedes W214 E-Class Can Prevent it From Starting

car wont start electrical issue
Image Credit: MechanicAnswer.com

Ok, well yes that image is a joke, but I want to emphasize modern vehicles rely on electronics, expanding the number of things that can go wrong. With older Mercedes’s, common culprits include blown fuses, ignition problems, damaged ignition switches, or broken sensors. Faulty wiring and electronics like these may prevent your vehicle from starting. Watch for intermittent starting, warning lights, or failure to crank as hints of an underlying electrical issue. Diagnosing and repairing these often needs a knowledgeable mechanic near you.

Solutions: Let’s Get Your Mercedes W214 E-Class Starting Again!

If you think you might know what the issue may be, it’s time to figure out the cause of your car’s starting failure, and then the logical next move is to attempt to fix the issue. Here are some tips for typical issues we’ve talked about already:

How to Identify and Fix Battery Issues in a Mercedes W214 E-Class

car not starting but battery is fine

If you think a battery issue is to blame for your Mercedes’s trouble starting, first inspect the battery terminals Ensure they are clean, tight, and properly connected. If the terminals are in fact dirty, try cleaning them with a baking soda and water solution.

Once you have checked the battery terminals, you can check to see if the battery is just out of charge, or worse, it’s old and weak, or dead and needs to be replaced. For this, you can charge the battery in a few different ways:

If the battery charges fully and performs as expected, the issue may be resolved. However, if the battery has aged or lacks capacity, replacing it will be necessary. Otherwise, even sufficiently charging it to start your W214 E-Class may only provide temporary relief before it runs out of charge again in the near future. Using a multimeter or OB2 scanner to evaluate the battery’s condition can determine if it’s worth preserving or requires replacement. Suitable replacement batteries for your specific Mercedes can be found on Amazon here by entering your vehicle details to filter for the right fit and choosing a highly-rated seller.

Robby Recommends:

Portable Car Battery Jump Starter Charger - NOCO Boost Plus GB40

At Home Battery Charger - YONHAN - Fully Automatic

Jumper Cables by Energizer for Car Battery - Heavy Duty

NOCO Boost Plus GB40 1000A UltraSafe Car Battery Jump Starter

YONHAN Battery Charger Fully-Automatic

Energizer Jumper Cables for Car Battery, Heavy Duty

If charging your W214 E-Class’s battery fails to solve ongoing issues like frequent draining and recharging even after installing a new battery, an underlying problem likely causes the excessive drain. Professional diagnostic services would then be needed to inspect and identify the root cause. You can also consult a mechanic online through us or obtain an instant quote from a mobile mechanic.

How to Identify and Fix Alternator Problems in a Mercedes W214 E-Class

Car wont start replace alternator needed

If you suspect the alternator is causing your ride to have problems starting, you can test it yourself. If you can temporarily get the vehicle running (you may need a jump start), with the engine on, remove the positive battery terminal. It’s probably the alternator if the motor dies soon after disconnecting the positive lead. Keep in mind though this test can be risky and mess up delicate electronics in your wheels, so it’s best to consult with a professional mechanic locally or online first since this test risks messing up the delicate electronic gizmos in your Mercedes W214 E-Class.

If you figure out that the alternator is the problem, it’s a case of having it replaced. I recommend consulting an online or local mechanic as they will advise you on how difficult the repair is for your specific model, and you can work out if you want to try it yourself, or with the advice of an online mechanic

If you do want to try it yourself or take it to a local garage, you can often buy the replacement parts yourself cheaper than at the garage, but you need to know what to get for your model of Mercedes W214 E-Class. You find all the information you need about your specific vehicle by searching online for something like “vin number check free“, which is a purchasable report, that will give the specs for your vehicle and which parts are compatible, and then you can go get the alternator parts you need. However, an easier option is, Amazon probably has the alternator you need online, at a cheaper price, and their site easily shows which ones will go in your specific car model. Check the Amazon alternator page here

How to Identify and Fix Starter Motor Problems in a Mercedes W214 E-Class

starter motor issues in a ford

If you suspect the starter motor is the culprit behind your Mercedes not turning over, be alert for a clicking noise when you turn the key. If present, but the engine does not turn over, the starter motor likely requires replacing. You can take it to a local garage and have them repair it, or repair it yourself with the help and advice from an online mechanic guiding you. 

If you need it, one of the cheapest and easiest places to get a new starter motor, for your exact vehicle model is on the Amazon here.

How to Identify and Solve Fuel System Problems in a Mercedes W214 E-Class

clogged fuel filter car wont start

If you think a fuel system issue might be causing the no-start, listen closely for the fuel pump hum when you turn the key to “on” before trying to turn over the car. The pump should emit a quiet humming for a few seconds. If such a noise is not heard, the fuel pump could be defective. Problematic starting, stalling, or lagging acceleration may also result from a problematic or clogged fuel filter. Both pump and filter issues usually need a professional mechanic to diagnose and fix them properly, often involving fuel pressure testing and specialized diagnostic equipment. Later in this article, I detail the best ways to get help from a local Mercedes mechanic near you. 

How to Fix Electrical or Wiring Issues in a Mercedes W214 E-Class

fuses to check when car wont start

If you suspect it’s an electrical circuitry issue, first inspect the fuses for the ignition system, and swap out any that have blown. If your W214 E-Class starts after this, it was a successful, inexpensive fix! But if your Mercedes W214 E-Class refuses to start, even sometimes, the ignition switch itself could be problematic. Warning lights on the dashboard could also mean a damaged component. These can be intricate problems needing a qualified mechanic to identify and properly repair (see below advice on local mechanics).

Preventive Steps

As grandfather would say: “An ounce of prevention is worth a pound of cure”. Here’s how to prevent future troubles starting your W214 E-Class:

Routine Maintenance of Your Mercedes W214 E-Class

Regular maintenance on car to prevent starting issues

Routine maintenance is key to avoiding issues, including oil changes, checking the battery, cleaning terminals, replacing the fuel filter as needed, and having a mechanic inspect the car routinely. If confused about maintenance for your model, consult a mechanic locally or online for clarification.

Drive Your W214 E-Class Regularly

drive regular to avoid car troubles

If your Mercedes W214 E-Class happens to sit motionless in the garage or driveway for weeks without being driven, the battery can weaken as it is not being charged up by the engine running, through the alternator. Try your best to drive your car regularly to maintain a charged battery. If you remember you have not driven your car in a while, take it for a brief drive around town to ensure there is still a charge left.

Note: Letting the battery fully run out of charge is also bad for its longevity, so try to avoid that.

Take Notice Of Warning Signs

Check Engine Control Light on a Vehicle Dashboard

If you notice any irregular things like unusual sounds, changes in driving and performance, or warning lights lit up on the dashboard, do not ignore them. These are often early signs of an issue that should be addressed ASAP before they escalate into larger problems later on. Consult with a mechanic locally or online about these problems and get advice on if they require attention.

When to Ask a Mercedes Mechanic Online

If your schedule is packed, or despite putting in real effort on your own, you still can’t get your car to start, consider consulting a Mercedes mechanic online. It delivers expert guidance in just minutes from the comfort of your living room, and is far less expensive than a tow and diagnosis at the local garage.

Benefits of an Online Mercedes Mechanic

Happy mechanic repairing car looking at camera

Online Mercedes mechanics can review your symptoms, past repair history, and circumstances to provide troubleshooting steps tailored to your situation. With so many Mercedes mechanics available they can help fix nearly any problem, it doesn’t if matter it’s your W214 E-Class that’s having issues or a Mercedes X254 GLC won’t start, the online mechanics can help sort anything in no time. And with many household budgets tighter these days, an online mechanic provides instant affordable help when you need it most, 24/7.

You can explain the issues you’re having, ask Mercedes mechanics unlimited questions, and even upload photos and videos so you can demonstrate to the expert what you mean. You can chat with them via instant messenger or voice chat, whatever you like. The Mercedes specialist will diagnose the problem, recommend the best fix for your specific case, and even guide you on simple maintenance step-by-step.

Whether you want an expert second opinion or are simply short on time, online repairs assistance is there when you need it. Give it a try to see firsthand how convenient fixing problems can be.

So feel free to try out our Mercedes expert live chat service and see for yourself!

When and How to Get a Local Mercedes Mechanics Help

automobile mobile mechanic

When your Mercedes W214 E-Class won’t start, and you are unable to repair it yourself, thinking about how to get your vehicle to the garage can be a nightmare. There are options like roadside services, that come to you and can provide simple fixes to get your car moving enough again, so you can get it to a mechanic garage for proper repairs. You can also use a towing service, but these can be costly, easily into the hundreds of dollars. A much better option is the use of a mobile mechanic, who will come to you at your home, place of work, or by the roadside, and carry out repairs there and then for you, so you can get your W214 E-Class started again ASAP.

So if you think a mobile mechanic is the best solution for you, instead of searching on Google something like  “mechanic mobile near me“, the best in the USA that also covers most towns is YourMechanicI have personally recommended them to countless people across the country and they always have a great experience.

Reasons I recommend them:

  • They use experienced ASE-certified mechanics
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If you would like to know more, the process to use them is this.

  1. Visit their official website here: YourMechanic
  2. Get an instant free quote for what you need
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Conclusion

In short, when your Mercedes W214 E-Class doesn’t turn over, it can be a major inconvenience. However, grasping what might be triggering the issues, being able to troubleshoot them, and knowing what actions are required in each case, and where to find help if needed, will be a huge help. Keep in mind that regular care is key to preventing most car issues.

Frequently Asked Questions (FAQs)

What if my Mercedes W214 E-Class won’t start up?

First things first, take a deep breath and try to stay calm. Look for any odd noises, flashing lights, or changes in how it runs that could point to the issue. Chances are the culprit is one of the common problems we will talk about here. If you still can’t pinpoint the exact issue, you’ll have to ask for help from a trusted Mercedes mechanic locally or online.

How do I know if my Mercedes W214 E-Class won’t start because of a bad battery?

Clues that your Mercedes’s battery is the issue include, a slow cranking engine, dim headlights, and battery warning symbols lighting up on the dash. You can also check that the battery terminals are clean, corrosion-free, and tightly fastened. If your battery is older it’s probably best to just replace it completely.

How to prevent my Mercedes W214 E-Class from failing to start in the future?

To prevent this nuisance from happening again, routine servicing is vital. This includes oil changes, testing the battery and cleaning its terminals, changing out the fuel filter when required, and getting your Mercedes W214 E-Class evaluated by a mechanic routinely. Also, make sure to drive the car regularly so the battery stays charged.

Can I consult an online mechanic if my Mercedes W214 E-Class fails to start up?

Yes, you can. An online mechanic service like ours can offer instant expert Mercedes mechanic aid and recommendations, without you having to leave your residence. {This is especially beneficial if your Mercedes W214 E-Class is unable to start and is immobile in the parking area,.

In what ways can services like MechanicAnswer.com lend a hand if my Mercedes W214 E-Class doesn’t ignite?

We connect you with certified Mercedes technicians who can offer proposals tailored to your exact quandary. You can inform them about your auto troubles, ask as many questions as needed, upload videos or pictures so you can fully detail the problem. The mechanic will be capable to help, identify the fault, and recommend the ideal plan of action and guide you through it.

Interesting Mercedes W214 E-Class Facts

Did you know that the Mercedes W214 E-Class comes with an innovative air suspension system that automatically adjusts to different driving conditions? It’s like having a personal chauffeur constantly fine-tuning your ride for maximum comfort and performance. And get this – the car is equipped with a system that can detect when you’re feeling drowsy and alert you to take a break. It’s like having a built-in co-pilot looking out for your well-being! Plus, the car’s sleek design and advanced technology make it feel like something straight out of a sci-fi movie. No wonder you’re itching to get it started again – who wouldn’t want to experience all these cool features firsthand?

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Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just £5.
  2. Get help from a Mobile Mechanic. We  recommend Fixter. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper for you, and you may not need an in-person mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic. We recommend YourMechanic. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper, and you may not need an in-person mechanic.

Choose Your Mechanic

1. Chat with A.I. Mechanic (Robot Robby)
  • Free 7-day trial
  • A.I. Mechanic that is trained by our human mechanic writers. As helpful as a human mechanic for expert advice, troubleshooting, and repair guidance.
2. Chat with a Human Mechanic Online
  • Join for just $5, and $39/month. Cancel anytime
  • Real human ASE-certified mechanics available 24/7

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic Near You. They will come to you and fix your vehicle at a time that suits you. If there are none near you, you will be redirected to the online mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just £5.
  2. Get help from a Mobile Mechanic. We  recommend Fixter. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper for you, and you may not need an in-person mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic. We recommend YourMechanic. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper, and you may not need an in-person mechanic.

Where Can I Find My VIN?

Your vehicle’s unique Vehicle Identification Number (VIN) can be found on the title document, the vehicle registration, and the insurance policy. It is a series letters and numbers like this as example: WAUGC0896JA235262. The VIN can also be located on the following locations on the vehicle itself:

how to find VIN on vehicle