Renault Won’t Start? Here’s Quick Solutions to the Most Common Causes

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Let's face it, we've all been there, you've got places to go, so you get in your Renault, turn the key, and … drum roll please … nothing at all! Your Renault won't fire up! This an extremely annoying situation to find yourself in, however, don't fret, we've got the answers. There are lots and lots of causes as to why your Renault won't start, and within this article, to save you time we'll deal with the most typical reasons as well as give you useful options to get your vehicle back on the road ASAP!

If you're short on time, rather than reading, you’re always welcome to consult with a live mechanic 24×7 and get immediate help and guidance on finding and fixing the issue, by clicking the “ask a mechanic” button in the bottom right of this page.

Understanding the Problem

Car Won't Start?

Before we get stuck into the causes and repair options it's important to initially comprehend the issue. When you hop into your car and realize “my Renault won't start”, this could be due to a multitude of issues being wrong with your vehicle. Perhaps the engine is not starting at all, potentially it is cranking partially but then not starting, or perhaps it's making a clicking noise when you attempt to start the engine, however, in the end absolutely nothing happens. Each of these cases can point to various issues with your car.

Common Reasons Why Your Renault Won't Start

There are numerous reasons that a Renault will not start up. These problems usually consist of a weak or dead car battery, a faulty alternator, starter motor failures, fuel system issues, as well as electrical or wiring concerns. Each one of these problems can show up as a multitude of symptoms and require separate solutions to identify and resolve, so we can get your car back on the road as soon as possible.

Symptoms of a Renault That Won't Start

Being able to identify and diagnose these signs, will help you in discovering the root cause of the issue. For example, when you turn the key in the ignition, and you hear a clicking noise however your Renault still will not start, it is often a sign that there is a problem with the fuel or ignition system.

Analysis of The Reasons Why Your Renault Won't Start

The first step to figuring out a solution to the issue is getting to grips with the underlying cause of that problem, so let's explore the most typical causes as to why your Renault won't start.

Renault Battery Issues

Auto mechanic replacing car batteryIn most cases, the most common reason why your Renault won't start is often the result of your battery, it's either weak or dead, and you have to either charge the battery or change it. The car's battery supplies the electricity required to start the engine, and power all the electrical components in your Renault. Signs of a weak or dead battery problem in a Renault, are things like the vehicle being sluggish to crank the engine, poorly lit headlights, or a lit-up battery alert light on the dash

Renault Alternator Problems

is my alternator stopping my car from starting?

The alternator is responsible for charging the battery from the engine while the vehicle is running. A damaged alternator can easily prevent your Renault from starting as it will not be able to charge up the battery, from the engine, so it will be depleted all the way down until it's dead and you don't realize it until you get into your beloved Renault and it refuses to start. Symptoms that the alternator is faulty can be a lit-up battery or alternator caution light on the dash, poorly lit headlights when the engine is idling, and also a whining or grinding noise from the engine while it's running.

Renault Starter Motor Failures

my car wont start is the starter motor?

The starter motor manages to turn the engine over (cranking) when you start your Renault. If the starter motor is broken in some manner then the engine won’t crank, and your Renault won't start. You can find out if your starter motor has a problem or not often by listening, if you hear a clicking noise when you turn your key or a grinding noise throughout the startup, or your vehicle starts up but only intermittently, then the starter motor may very well be the problem.

Renault Fuel System Complications

my car wont start but clicks

We’re not talking about when you simply run out of gas here, but the fuel system itself having issues. Your Renault uses a combustion engine, and therefore to start and run, it needs a mix of enough fuel and air. If your Renault problems are because of a faulty fuel system, this can sometimes be a clogged fuel filter or a broken fuel pump relay, which could mean the engine may not be getting the fuel it requires to get the vehicle going.

Renault Electrical System or Wiring Problems

can electrics be a reason a car wont start

Today’s modern Renaults rely greatly on electronic components, which can mean there are lots of things that can potentially break and cause problems. Even in an older model, you can have regular problems such as blown fuses, spark plug issues, a broken ignition switch, or a broken sensor, and more. These can be some of the various electrical reasons that your Renault will not start. Signs of a wiring or electrical issue can vary widely but can often include the engine not cranking, or your Renault can start but just intermittently or some warning lights come on the dashboard. To appropriately diagnose and repair these kinds of problems, you will require the skills of a skilled car mechanic locally or online.

Solutions & Repair Tips

Once you have diagnosed the reason for your Renault troubles are. The next logical step is naturally to try and repair it. Here are some suggestions for the common problems we've covered up until now.

How to Troubleshoot and Fix Battery Issues in a Renault

my car wont start i think its the battery

If it’s a battery issue you suspect is the cause of your troubles, then the first thing you need to do is check the battery terminals. You want them to be clean, not corroded, and securely connected. If you find that the terminals are corroded you can try cleaning them with a mix of baking soda and water. If the battery is just old or weak, you will have to replace it, otherwise, even if you charge it up enough to start the vehicle, it will probably die once again in the not-so-distant future. You can make use of a multimeter as a battery tester to see if it’s worth saving or if it needs to be replaced. You can ask a reliable car mechanic online or locally to advise you on this.

How to Diagnose Alternator Problems in a Renault

car wont start, jumped and started alternator

If you’re thinking that the alternator is the cause of your car's starting troubles, you can test it. If you can get the car to start up temporarily (you may need to jump-start the car for that), but once it’s going, let the vehicle run, and while it's running, disconnect the positive terminal of the battery. It's likely the result of a fault with the alternator if you discover your Renault dies fairly quickly when you disconnect the positive terminal. You should be aware however that this method can be risky, and might harm the delicate electronic components in your Renault, so it's best to consult with a professional car mechanic locally or online, prior to ever attempting this.

How to Identify Starter Motor Failures in a  Renault

car wont start starter and battery good

If you hear the clicking sound when you try and start the car by turning the key, but, the engine doesn't crank, then it's most likely an issue with your starter motor. In this case, the solution is to have the starter motor changed for a new one by a professional mechanic.

How to Resolve Fuel System Problems in a Renault

clogged fuel filter car wont start

If you suspect the issue to be due to a fuel system problem, listen for the fuel pump when you turn the key to the “on” position, before starting up the vehicle. You should hear a humming sound for a few seconds. It might be there is a problem with the fuel pump if you are not able to hear this noise. If you observe your Renault is hard to start, it stalls, or it has poor acceleration, it might be because of a clogged fuel filter. Both of these will likely require a reliable car mechanic in order to properly repair or replace them.

How to Fix Electrical or Wiring Problems in a Renault

fuses to check when car wont start

If you suspect it's an electrical wiring or electrical system issue, first inspect the fuses associated with the ignition system, and change any that have actually blown. If your Renault starts after this, then it was an effective, cheap, and easy fix! However, if the vehicle doesn't start, even intermittently it could be an issue with the ignition switch itself. If various warning lights are noticeable on your dashboard, it might be a problematic sensor. These problems can be really complicated and a reliable car mechanic is likely required to diagnose and have it properly repaired.

Preventive Steps

As my dad always stated “Prevention is better than cure”, so here are some preventative measures to ensure you avoid any Renault starting troubles ever again!

Regular Upkeep of Your Renault:

Regular maintenance on car to prevent starting issues

Routine upkeep of your Renault is key to preventing future troubles. This consists of things like regular oil changes, inspecting the battery, cleaning up the terminals, changing the fuel filter as suggested/needed, and having your Renault examined by a reliable car mechanic routinely. You can seek advice from a mechanic locally or online if you are uncertain or confused about the routine maintenance jobs needed for your particular car.

Drive Your Renault Regularly:

drive regular to avoid car troubles

If you happen to leave your Renault in your garage for long durations of time without taking it for a spin now and again, the battery will deplete as it's not getting any charge from the engine being in use. Try to drive your Renault regularly to keep the battery charged. If you remember you haven't driven your car in a while, take it for a spin to ensure there is still a charge in the battery. Worth noting: letting the battery completely drain, is also damaging to the long-term life of the battery, try not to do this.

Take Notice Of Warning Signs:

Check Engine Control Light on a Vehicle Dashboard

If you observe anything weird like uncommon noises, changes in driving and performance, or alert lights lit up on your Renault's dashboard, don’t just ignore them. These are usually early indications of a problem and it’s best to be addressed ASAP before they end up being bigger issues later. Talk to a car mechanic locally or online about these warning symbols and find out if they need to be attended to.

When to Ask a Renault Mechanic Online

If you're either short on time, would like an expert Renault mechanic on hand to guide and advise you, or you've tried to resolve it by yourself, but despite your best efforts your car can't start, then talking with a Renault mechanic online can be an excellent option.

Benefits of Online Mechanic Solutions

Happy mechanic repairing car looking at camera

Online mechanic services, like ours in the bottom right of this page, offer a number of benefits. You can get professional Renault mechanic suggestions 24×7 and without leaving your house, which is particularly useful if your vehicle won't start and is stuck in the driveway. You can also save money as online mechanic consultations are much more affordable than a physical visit to a local mechanic near you. Plus, you can get responses quickly, which is fantastic if you're in a hurry, need a second opinion, or you just prefer having an expert Renault mechanic on hand.

How Solutions Like Can Help You

Ask a mechanic online about my car not starting connects you with accredited professional mechanics who can provide instantaneous aid, guidance and advice. You're able to describe the issues you are having with your car, ask a Renault mechanic limitless questions, and even submit photos and videos so you are able to show the mechanic what you mean. You can speak with them by means of online chat or by telephone call, whichever you choose. The Renault mechanic will help you detect the problem, advise you on what are the best options for your specific scenario and even assist you through easy maintenance and repairs step by step.


To sum it all up when your Renault won't start, it can be a total disappointment and a massive hassle. However, having a firm grasp of what may be causing the issues, being able to troubleshoot them, and knowing what steps are required in each case, and where to get help if required, will be a substantial help. Remember that routine upkeep is essential for preventing all kinds of car problems.

If you're still dealing with car issues after this article, remember our online car mechanic help feature is ready to assist.

Frequently Asked Questions (FAQs)

What should I do if my Renault won't start? 

First of all, do not panic. Try to identify any symptoms that could indicate a problem, such as unusual noises, warning lights on the dash, or changes in performance. The cause of the problem is likely one of the most common causes talked about in this guide. You will need the assistance of a mechanic locally or online if you can't find the problem yourself.

How to tell if my Renault wont start because of the battery?

Signs of a battery problem in a Renault consist of the engine being slow to crank, dim headlights, and lit battery warning lights on dash. You can also check the battery terminals to see if they are clean, not corroded, and tightly connected. If the battery is weak or old, it might be best to simply swap it for a newer one.

How can I prevent my Renault not starting issues?

In order to ensure this annoyance never occurs once again, routine upkeep is key. This includes things like oil changes, examining the battery and cleaning it's terminals, changing the fuel filter as recommended / needed, and having your Renault checked by a mechanic often. It's also a fantastic idea to drive the car regularly so the battery remains charged.

Can I ask a mechanic online if my Renault wont start? 

Yes, you can. An online mechanic service like ours can offer instantaneous specialist Renault mechanic assistance and advice, without you needing to leave your house. This is especially helpful if your vehicle won't start and is stuck in the driveway.

How can services like help if my Renault will not start?

We link you with licensed specialist Renault mechanics who can provide suggestions on your particular circumstance. You can tell them about your vehicle problems, ask unlimited questions, and even upload images and videos so you can properly describe and show the issue. The mechanic will be able to help, troubleshoot, diagnose the issue, suggest the best course of action and guide you along the way.

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