Mercedes GLE Wont Start? Here’s Quick Solutions to Most Common Problems

Intro

As a qualified mechanic with over 20 years of hands on experience, I’ve helped plenty of people battling when their Mercedes GLE Won’t Start. And I’ll be straight with you, 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 won’t turn“, 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 most common reasons for why your GLE doesn’t start. I’ll discuss all the commonplace offenders so you can diagnose what’s causing issues, plus what to do to resolve each specific situation. Drawing on my two decades of training and on the job experience, I’ll supply actionable diagnostic pointers to get your Mercedes GLE started ASAP!

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Why Won’t My a Mercedes Start?

Mercedes GLE wont start

Before we tackle the list of possible faults and fixes, it’s critical to first get on the same page of the central issue. When you climb into your Mercedes GLE and discover “it won’t start!”, there could be multiple components causing the difficulties. Maybe the engine doesn’t turn over whatsoever, or maybe it’s cranking but not firing. Or you might notice clicking sounds when you try to start it, but ultimately nothing happens. All these situations can indicate various mechanical issues.

Common Reasons Why Your Mercedes GLE Won’t Start

There are a host of contributing factors why your GLE won’t start. Typical causes include a weak or drained battery, broken alternator, starter motor issues, fuel system problems, plus electrical or wiring malfunctions. Each of these concerns can show up differently, requiring specific methods of diagnosis and repair to get you back on the open road as quick as possible. All of which, we’ll delve into.

Symptoms of a Mercedes GLE That Won’t Start

Identifying these warning signs will help uncover the core cause. For instance, when you turn the key and you hear it turning over yet no start up, it often indicates a fuel or ignition issue.

Analysis of The Reasons Why Your Mercedes GLE Won’t Start

The first step in solving the no-start nuisance is identifying the precise origin of the trouble. So let’s take a closer look at the most common reasons behind the GLE refusing to start when you turn the key.

Battery Issues in a Mercedes GLE

car wont start but battery is good
Image Credit: MechanicAnswer.com

In the vast majority of situations, the most frequent reason a Mercedes GLE 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 activate all your electronics. Signals of a dying battery include labored or difficult cranking, dim headlights, or a warning light 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 in a Mercedes GLE

car wont start alternator

The Alternator keeps the battery charged by using engine power while driving. A malfunctioning alternator can easily stop your Mercedes GLE from starting since it fails to recharge the battery, depleting it fully so that one day you climb into your ride and it simply can’t start. Signs of a problematic alternator may include an illuminated battery or alternator warning symbol on your dashboard, dim headlights while idling, or a grinding noise from the engine while running.

Starter Motor Failures in a Mercedes GLE

car wont start wont turn over

The starter motor is key to turning over the engine when you go to start up your Mercedes. If the starter is faulty, the engine can’t crank, preventing your GLE from starting. Pay attention to clicking sounds when you turn the key or grinding while trying to start, possibly meaning starter issues.

Fuel System Issues in a Mercedes GLE

car wont start fuel filter

We’re not talking about running out of gas like a silly goose. Instead, it’s problems in the fuel system itself that could leave your GLE unable to drive. Your car uses gas uses fuel to mix with air and runs the engine. Issues in fuel delivery like a clogged fuel filter or failing fuel pump relay can result in the engine is unable to get the fuel it needs to start. Fuel injectors can also get clogged over time, so consider a fuel injector cleaner like Red Line to clear any blockages and improve starting.

Electrical System or Wiring Problems in a Mercedes GLE

car wont start electrical issue
Image Credit: MechanicAnswer.com

Ok, well yes that image is a joke, but I want to emphasize modern cars now rely heavily on electronics, increasing the number of things that can go wrong. Even in older cars, the usual suspects include blown fuses, ignition problems, faulty ignition switches, or non-working sensors. Electrical issues and electronics like these may prevent your car from starting. Pay attention to intermittent starting, dashboard alerts, or failure to crank as signs of an underlying electrical problem. Pinpointing and fixing these typically requires an experienced mechanic near you.

Solutions: Let’s Get Your Mercedes GLE Starting Again!

If you think you might know what the issue may be, it’s time to figure out the reason behind your car’s failure to start, and then the next step is to attempt to repair the problem. Here’s advice for the typical problems we’ve discussed up to this point:

How to Identify and Fix Battery Issues in a Mercedes GLE

car not starting but battery is fine

If you believe a battery issue is to blame for your Mercedes’s difficulty starting, first examine the battery terminals Verify they are clean, tight, and correctly connected. If the terminals are in fact corroded, try scrubbing 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, replacing the battery will be required if it is aged, dead or lacks capacity. Otherwise, even sufficiently charging it to start your GLE may only provide temporary relief before it likely runs out of power again soon. Using a multimeter or OB2 scanner to evaluate the battery’s condition can determine if it’s worth preserving or requires swapping out. 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 GLE’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 GLE

Car wont start replace alternator needed

If you think the alternator is the reason your Mercedes GLE won’t start, a test can confirm. If you can temporarily get the vehicle running (you may need a jump start), and while it’s running, disconnect the positive terminal of your car’s battery. If the auto dies right quickly after that, it’s likely a bad alternator. However, be warned this test can be risky and damage delicate electronics in your ride, so chatting with a qualified mechanic in your area or online is best before trying it.

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 GLE. You find all the information you need about your specific vehicle by searching online for something like “check Mercedes history with vin“, 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 GLE

starter motor issues in a ford

If you think the starter motor might be causing your Mercedes GLE to not start up, pay attention for a clicking noise when you try and start it. If present, but the engine does not turn over, the starter motor likely needs 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 GLE

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 noise when you turn the key to “on” before trying to turn over the car. The pump should emit a faint humming for a few seconds. If such a noise is not heard, the fuel pump could be faulty. Difficult starting, stalling, or poor throttle response may also stem from a problematic or clogged fuel filter. Both pump and filter issues usually need a skilled mechanic to diagnose and fix them properly, often involving fuel pressure testing and specialized diagnostic gear. Later in this article, I detail the best ways to get help from a local Mercedes mechanic near you. 

How to Repair Electrical or Wiring Problems in a Mercedes GLE

fuses to check when car wont start

If you think it’s an electrical circuitry problem, first examine the fuses for the ignition system, and swap out any that have blown. If your GLE starts after this, it was an effective, cheap fix! However, if it still won’t start, even sometimes, the ignition switch itself could be faulty. Dash lights on the dashboard could also mean a faulty sensor. These can be complex issues needing a professional mechanic to diagnose and properly repair (see below advice on local mechanics).

How to Prevent Starting Issues in a Mercedes GLE

As grandfather would say: “An ounce of prevention is worth a pound of cure”. Here’s how to avoid future troubles starting your GLE:

Regular Upkeep of Your Mercedes GLE

Regular maintenance on car to prevent starting issues

Regular maintenance is essential to avoiding issues, including oil changes, checking the battery, cleaning terminals, replacing the fuel filter as needed, and having a mechanic examine the vehicle regularly. If unsure about maintenance for your model, ask a mechanic locally or online for guidance.

Drive Your GLE Regularly

drive regular to avoid car troubles

If your Mercedes GLE happens to sit motionless in the garage or driveway for extended times without being driven, the battery can deplete as it is not being charged up by the engine running, through the alternator. Try your best to use your vehicle regularly to keep a charged battery. If you remember you have not driven your car in a while, take it for a short drive around town to ensure there is still a charge left.

Note: Letting the battery fully drain 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 weird 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 quick professional advice from the comfort of home, and is far less expensive than a tow and diagnosis at the local garage.

Advantages of an Online Mercedes Mechanic

Happy mechanic repairing car looking at camera

By detailing what you’ve already tried and sharing specifics on the no-start issue, online mechanics can then offer a custom action plan to help get your car started again. With so many Mercedes mechanics available they can help fix nearly any problem, it doesn’t if matter it’s your GLE that’s having issues or a Mercedes GLC-Class 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 problems you’re having, ask Mercedes mechanics endless questions, and even submit pics and videos so you can show the expert what you mean. You can chat with them via online chat or voice chat, whatever you like. The Mercedes specialist will ID the issue, advise the top solution for your particular case, and even walk you through 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 – you may be surprised just how easy and stress-free it is.

So feel free to try out our talk to a Mercedes mechanic online service and see for yourself!

When and How to Get a Local Mercedes Mechanics Help

automobile mobile mechanic

When your Mercedes GLE 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 GLE started again ASAP.

So if you think a mobile mechanic is the best solution for you, instead of searching on Google something like  “find a mobile mechanic 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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  • You see the price upfront, no surprises or hidden fees
  • Low Cost compared to regular garages

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
  3. Book a time and place for the mechanic to come to you
  4. The mechanic will arrive in a fully stocked repair van and repair it right in front of you
  5. Pay when the job is completed.

Super easy, super reliable, super convenient, and highly recommended.

Conclusion

In short, when your Mercedes GLE won’t start, it can be a total bummer. However, grasping what might be triggering the problems, being able to diagnose them, and knowing what actions are required in each case, and where to get help if necessary, will be a huge help. Remember that routine maintenance is vital to preventing most vehicle problems.

Frequently Asked Questions (FAQs) When a Mercedes GLE Won’t Start

Mercedes GLE won’t start but lights come on?

If your Mercedes GLE‘s lights illuminate but it still won’t start, the issue may not be related to the battery. It’s highly possible there is a problem with the engine starter. Check to see if you hear any clicking noises when trying to turn the key. If so, the starter motor is attempting to activate but failing. Get a mechanic check over the starter motor – it may need to be fixed or swapped out.

Mercedes GLE won’t start but has power?

When your Mercedes GLE has power (lights, radio etc work) but fails to start, there may be a fuel delivery problem. Issues like a faulty fuel pump relay could stop fuel getting to the engine. Without enough fuel, combustion can’t happen and the engine won’t start. Check around the back seat when turning the key – you should hear the fuel pump prime for a few seconds. If not, get a mechanic check the fuel system.

Mercedes GLE won’t start but battery is fine?

If your Mercedes GLE‘s battery tests fine and is fully charged, but the car still refuses to start, the underlying cause is likely electrical. Possible issues include a bad ignition switch, broken sensor, or wiring problems. As electrical issues can be tricky, diagnosis by a professional mechanic is best. They can accurately identify the specific electrical fault and have it repaired.

Mercedes GLE won’t start just clicking?

When you turn the key and just hear clicking but the engine doesn’t crank, the most common cause is a faulty starter motor. The click comes from the starter solenoid attempting to activate the starter motor, but the motor itself fails to spin up the engine. As the starter motor needs physical fixing or swapping out, consult with a reliable mechanic to get your Mercedes GLE running again.

What if my Mercedes GLE won’t start up?

First things first, take a deep breath and don’t panic. Look for any odd noises, flashing lights, or changes in how it runs that could point to the issue. Most likely the culprit is one of the common problems we will talk about here. If you still can’t identify 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 GLE won’t start because of the battery?

Signs that your Mercedes’s battery is the issue are, 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 worn out it’s probably best to just replace it entirely.

How to prevent my Mercedes GLE from failing to start in the future?

To prevent this hassle from repeating, scheduled servicing is essential. This includes oil changes, inspecting the battery and cleaning its terminals, changing out the fuel filter when needed, and getting your Mercedes GLE evaluated by a mechanic routinely. Also, make sure to drive the car often so the battery stays charged.

Can I consult an online mechanic if my Mercedes GLE fails to start up?

Yes, you can. An online mechanic service like ours can offer immediate skilled Mercedes mechanic assistance and advice, without you having to leave your residence. If your vehicle fails to start and is immobile in the parking area, this is especially useful.

In what ways can websites like MechanicAnswer.com provide assistance if my Mercedes GLE doesn’t ignite?

We pair you with licensed Mercedes specialists who can offer proposals particular to your individual situation. You can inform them about your auto troubles, ask unlimited questions as needed, upload images and videos so you can fully detail the issue. The mechanic will be able to aid, identify the fault, and propose the ideal remedy and walk you through it.

Interesting Mercedes GLE Facts

Did you know that the Mercedes GLE is equipped with an E-Active Body Control system that can individually control the suspension at each wheel? It’s like the car has a mind of its own, constantly adjusting to the road conditions to give you the smoothest ride possible. And get this – the GLE also has a “Carwash” mode that raises the suspension and folds in the side mirrors to make sure your car gets the perfect clean without any damage. Plus, with a towing capacity of up to 7,700 pounds, this SUV is a powerhouse on the road. No wonder you’re itching to get it started and hit the road!

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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