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

Intro

As a trained mechanic with over two decades of experience, I’ve seen plenty of people battling when their Mercedes CLE Won’t Start. And let’s be honest, 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 “my Mercedes isn’t turning over“, I got you covered. My name’s Robby, a certified auto mechanic with over two decades of experience, and in this article, I’ll outline the usual causes for why your CLE doesn’t start. I’ll discuss all the typical suspects so you can pinpoint what’s causing issues, plus what to do to resolve each particular situation. Drawing on my 20 years of personal experience, I’ll supply practical diagnostic pointers to get your Mercedes CLE up and moving as quick as possible!

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Why Won’t My a Mercedes Start?

Mercedes CLE wont start

Before we dive into the list of possible issues and solutions, it’s critical to first get on the same page of the core problem. When you climb into your Mercedes CLE and discover “it won’t start!”, there could be a number of things causing the difficulties. Perhaps the engine isn’t cranking at all, 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 different problems under the hood.

Common Reasons Why Your Mercedes CLE Won’t Start

There are a host of contributing factors why your CLE won’t start up. The usual suspects include a dead or weak battery, broken alternator, starter motor issues, fuel system problems, plus electrical or wiring issues. Each of these issues can show up differently, needing specific methods of troubleshooting and fixing to get you back on the open road as quick as possible. All of which, we’ll delve into.

Symptoms of a Mercedes CLE That Won’t Start

Spotting these red flags will lead you to the main issue. Take for example, when you turn the key and you hear it clicking but no ignition, it often indicates a fuel or ignition issue.

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

The initial move in fixing the no-start hassle is identifying the specific origin of the issue. So let’s explore the most frequent reasons behind the CLE refusing to start when you turn the key.

Battery Issues in a Mercedes CLE

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

In the vast majority of situations, the most common reason a Mercedes CLE won’t start comes down to battery troubles. Specifically, a weak or dead battery prevents the engine from turning over. The car’s battery provides the necessary electrical juice to ignite the engine and energize all your vehicle’s electrical components. Symptoms of a dying battery include labored or difficult cranking, faint headlights, or a battery alert symbol aglow on the dash. A battery charger can recharge a drained 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 CLE

car wont start alternator

The Alternator keeps the battery charged by using engine power while driving. A busted alternator can easily prevent your Mercedes CLE from starting since it fails to recharge the battery, draining it fully so that one day you hop in your beloved Mercedes CLE and it refuses to start up. Clues of a problematic alternator may include an illuminated battery or alternator warning symbol on its dash, dull headlights while idling, or a grinding noise from the engine while running.

Starter Motor Failures in a Mercedes CLE

car wont start wont turn over

The starter is crucial for cranking the engine when you try and start up your Mercedes. In the event of starter problems, the engine may fail to crank, keeping your CLE from starting. Listen out for clicking noises when you turn the key or grinding during cranking, potentially signaling starter issues.

Fuel System Issues in a Mercedes CLE

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 potentially leaving your CLE unable to start. Your car uses gas uses gas to mix with air and runs the engine. Issues in fuel delivery like a clogged fuel filter or damaged fuel pump relay can result in 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 CLE

car wont start electrical issue
Image Credit: MechanicAnswer.com

Ok, well yes that image is a joke, but I want to emphasize today’s cars depend greatly on electronics, increasing the number of things that can go wrong. Even in older cars, common culprits include blown fuses, spark issues, faulty ignition switches, or broken sensors. Electrical issues and electronics like these can all prevent your vehicle from starting. Pay attention to your car only starting sometimes, dashboard alerts, or failure to crank as indicators pointing to an underlying electrical issue. Diagnosing and repairing these typically requires a skilled mechanic near you.

Solutions: Let’s Get Your Mercedes CLE 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 inability to start up, and then the next step is to try to mend the issue. Here’s advice for the common issues we’ve covered thus far:

How to Identify and Fix Battery Issues in a Mercedes CLE

car not starting but battery is fine

The first step if a battery problem is suspected for the no start is to check the battery terminals. Make sure they are corrosion-free, secure, and correctly connected. If the terminals are in fact corroded, 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 CLE 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 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 CLE’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 CLE

Car wont start replace alternator needed

If you think the alternator is the reason your vehicle won’t start, a test can confirm. If you can temporarily get the car running (you may need a jump start), with the engine on, detach the positive battery terminal. It’s probably the alternator if the engine dies soon after disconnecting the positive lead. However, be cautious this test can be dicey and damage delicate electronics in your ride, so consulting a skilled mechanic locally or online is best prior to 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 CLE. You find all the information you need about your specific vehicle by searching online for something like “vin number for Mercedes“, 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 CLE

starter motor issues in a ford

If you question if the starter motor is the source of your CLE failing to start, listen carefully for a clicking sound when you turn the ignition key. If present, but the engine does not turn over, the starter motor likely requires replacement. 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 CLE

clogged fuel filter car wont start

If you think a fuel system malfunction might be to blame for the no-start, listen closely for the fuel pump hum when you turn the key to “on” before attempting to start the car. The pump should emit a faint humming for a few seconds. If you can’t hear that noise, the fuel pump could be defective. 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 professional mechanic to diagnose and fix them properly, often involving fuel pressure testing and precise diagnostic gear. 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 CLE

fuses to check when car wont start

If you think it’s an wiring problem, first inspect the fuses for the ignition system, and replace any that have blown. If your CLE 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 qualified mechanic to identify and properly repair (see below advice on local mechanics).

How to Prevent Starting Issues in a Mercedes CLE

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

Routine Maintenance of Your Mercedes CLE

Regular maintenance on car to prevent starting issues

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

Drive Your CLE Regularly

drive regular to avoid car troubles

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

Note: Letting the battery entirely 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 abnormal things like unusual noises, 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 you have limited time available, or you gave fixing the no start yourself an honest effort but with no luck, consider consulting a Mercedes mechanic online. It delivers quick professional advice from the comfort of your living room, 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

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 CLE that’s having issues or a Mercedes W214 E-Class won’t start, the online mechanics can help sort anything in no time. And with many household budgets tighter these days, the convenience and affordability of online mechanics help, keep your wallet happy too.

You can explain the problems you’re having, ask Mercedes mechanics unlimited questions, and even submit images and videos so you can demonstrate to the expert what you mean. You can talk to them via instant messenger or voice chat, whichever you prefer. The Mercedes mechanic will ID 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 – you may be surprised just how easy and stress-free it is.

So feel free to try out our mechanic help online service and see for yourself!

When and How to Get a Local Mercedes Mechanics Help

automobile mobile mechanic

When your Mercedes CLE 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 CLE started again ASAP.

So if you think a mobile mechanic is the best solution for you, instead of searching on Google something like  “auto 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
  • They come to you, which is super convenient
  • 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 CLE doesn’t turn over, it can be a major inconvenience. However, grasping what might be causing the problems, being able to troubleshoot them, and knowing what steps are required in each case, and where to find help if needed, will be a huge help. Remember that regular care is key to avoiding most car problems.

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

Mercedes CLE won’t start but lights turn on?

If your Mercedes CLE‘s lights illuminate but it still won’t start, the issue is likely not related to the battery. More than likely there is a problem with the starter motor. Check to see if you hear any clicking sounds when trying to turn the key. If so, the starter motor is attempting to activate but failing. Get a mechanic inspect the starter motor – it may need to be fixed or swapped out.

Mercedes CLE won’t start but has power?

When your Mercedes CLE 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 prevent 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 CLE won’t start but battery is good?

If your Mercedes CLE‘s battery checks out OK 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 CLE won’t start just clicking?

When you turn the key and there’s only a clicking noise 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 crank the engine. As the starter motor needs physical fixing or swapping out, consult with a reliable mechanic to get your Mercedes CLE running again.

What if my Mercedes CLE 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’ll talk about here. If you still can’t locate the exact issue, you’ll have to consult a trusted Mercedes mechanic locally or online.

How do I know if my Mercedes CLE won’t start because of the battery?

Clues that your Mercedes’s battery is the issue are, a slow cranking engine, dim front lights, and battery warning symbols lighting up on the dash. You can also make sure the battery terminals are clean, corrosion-free, and tightly fastened. If your battery is worn out it’s probably best to just replace it fully.

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

To prevent this frustration from repeating, 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 CLE evaluated by a mechanic on a regular basis. Also, make sure to drive the car frequently so the battery stays charged.

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

Yes, you can. An online mechanic service like ours can offer immediate expert Mercedes mechanic help and advice, without you having to leave your house. This is especially useful if your Mercedes CLE is unable to start and is stuck in the driveway,.

In what ways can platforms like MechanicAnswer.com lend a hand if my Mercedes CLE isn’t starting?

We link you with licensed Mercedes specialists who can supply suggestions specific to your unique predicament. You can brief them about your auto troubles, ask unlimited questions as needed, upload videos or pictures so you can show in detail the problem. The mechanic will be capable to aid, pinpoint the fault, and recommend the best solution and talk you through it.

Interesting Mercedes CLE Facts

Did you know that the Mercedes CLE has a top speed of 155 mph? That’s faster than most sports cars on the market! And get this – it also has an impressive fuel efficiency rating of 23 mpg in the city and 30 mpg on the highway. But that’s not all, the CLE also comes equipped with the latest in safety technology, including automatic emergency braking and lane-keeping assist. Plus, its sleek and stylish design is sure to turn heads wherever you go. So, if you’re lucky enough to own a Mercedes CLE, you’re in for a truly exhilarating driving experience. Now, if only we could figure out why it won’t start…

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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