BMW M6 Wont Start? Here’s Quick Solutions to Most Common Problems

Intro

As a trained car mechanic with over two decades of hands on experience, I’ve helped plenty of people battling when their BMW M6 Won’t Start. And I’ll be straight with you, not being able to start your car when you need to drive is incredibly bothersome.

But don’t lose hope, you’ve come to the right place, no need to keep googling searches like “BMW not 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 reasons for why your M6 can’t start. I’ll detail all the commonplace offenders so you can diagnose what’s going on, plus what to do to fix each specific problem. Drawing on my 20 years of training and on the job experience, I’ll offer practical diagnostic pointers to get your BMW M6 started as soon as possible!

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Why Won’t My a BMW Start?

BMW M6 wont start

Before we tackle the list of possible issues and solutions, it’s key to first gain an understanding of the core problem. When you climb into your BMW M6 and realize “it won’t start!”, there could be multiple components causing the headaches. Perhaps the engine doesn’t turn over whatsoever, or maybe it’s turning over partially yet not igniting. Or you might hear clicking when you try to start it, but sadly no ignition occurs. All these situations can indicate various problems under the hood.

Common Reasons Why Your BMW M6 Won’t Start

There are a host of culprits as to why your M6 won’t fire up. The usual suspects cover a dead or weak battery, broken alternator, starter motor failures, fuel system problems, plus electrical or wiring defects. Each of these issues can present differently, needing specific methods of diagnosis and repair to get you back on the open road ASAP. All of which, we’ll delve into.

Symptoms of a BMW M6 That Won’t Start

Spotting these red flags will help uncover the core mechanical problem. For instance, when you turn the key or press the start button and you hear it turning over yet no start up, it often signifies a problem with either fuel delivery or ignition issues.

Analysis of The Reasons Why Your BMW M6 Won’t Start

The initial move in solving the no-start nuisance is identifying the specific origin of the trouble. So let’s explore the most common causes of the M6 failing to start when you turn the key.

Battery Issues in a BMW M6

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

In the vast majority of situations, the most common reason a BMW M6 won’t start comes down to issues with the battery. Specifically, a drained or weak battery prevents the engine from turning over. The car’s battery supplies the necessary electrical juice to ignite the engine and activate all your vehicle’s electrical components. Signals of a failing battery include 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 in a BMW M6

car wont start alternator

The Alternator keeps the battery charged by harnessing engine power while driving. A worn out alternator can easily prevent your BMW M6 from starting since it cannot recharge the battery, draining it completely so that one day you climb into your ride and it simply can’t start. Signs of a faulty alternator may include a lit up battery or alternator caution light on its dashboard, faint headlights while idling, or a whirring noise from the engine while running.

Starter Motor Failures in a BMW M6

car wont start wont turn over

The starter motor is key to turning over the engine when you attempt to start your BMW. Should the starter fail, the engine can’t crank, keeping your M6 from starting. Be on the alert for clicking sounds when you turn the key or grinding as you try to start it, which could indicate starter problems.

Fuel System Issues in a BMW M6

car wont start fuel filter

This isn’t about running out of gas like a silly goose. Rather, it’s problems in the fuel system itself that could leave your M6 unable to start. Your BMW M6 uses gas to mix with air 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 requires for ignition. Fuel injectors can also get clogged over time, so consider a fuel injector cleaner like Red Line to clean them out and improve starting.

Electrical System or Wiring Problems in a BMW M6

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. Even in older BMW’s, common culprits include blown fuses, spark issues, broken ignition switches, or non-working sensors. Faulty wiring and electronics like these can all prevent your vehicle from starting. Watch for your car only starting sometimes, warning lights, or failure to crank as signs of an underlying electrical issue. Pinpointing and fixing these often needs a certified mechanic near you.

Solutions: Let’s Get Your BMW M6 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 next step is to attempt to mend the problem. Here’s advice for the common problems we’ve covered thus far:

How to Identify and Fix Battery Issues in a BMW M6

car not starting but battery is fine

The first step if a battery problem is suspected for the no start is to have a look at the battery terminals. Ensure they are corrosion-free, tight, 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, replacing the battery will be required if it is old, weak or dead. Otherwise, even sufficiently charging it to start your M6 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 replacement. Suitable replacement batteries for your specific BMW 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 M6’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 BMW M6

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 auto 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. Keep in mind though this test can be dicey and damage delicate electronics in your ride, so it’s best to talk to a professional mechanic in your town or online first since this test risks harming the delicate electronics in your auto.

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 BMW M6. You find all the information you need about your specific vehicle by searching online for something like “BMW VIN decoder 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 BMW M6

starter motor issues in a ford

If you wonder if the starter motor is the source of your M6 refusing to start, listen carefully for a clicking sound when you turn the ignition key. If heard, 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 BMW M6

clogged fuel filter car wont start

If you suspect a fuel system issue might be to blame for the no-start, listen closely for the fuel pump hum when you flip the key to “on” before attempting to start the car. The pump should make a quiet humming for a few seconds. If you can’t hear that noise, the fuel pump could be defective. Problematic starting, stalling, or poor throttle response may also come from a blocked fuel filter. Both pump and filter issues normally need a professional mechanic to inspect and repair 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 BMW mechanic near you. 

How to Fix Electrical or Wiring Issues in a BMW M6

fuses to check when car wont start

If you think it’s an electrical problem, first examine the fuses for the ignition system, and swap out any that have blown. If your M6 starts after this, it was an effective, cheap fix! But if your BMW M6 refuses to start, even sometimes, the ignition switch itself could be faulty. Dash lights on the dashboard could additionally mean a damaged sensor. These can be intricate issues needing a qualified mechanic to identify and fix (see below advice on local mechanics).

How to Prevent Starting Issues in a BMW M6

As granpa would say: “An ounce of prevention is worth a pound of cure”. Here’s how to prevent future problems starting your M6:

Regular Maintenance of Your BMW M6

Regular maintenance on car to prevent starting issues

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

Drive Your M6 Frequently

drive regular to avoid car troubles

If your BMW M6 happens to sit motionless in the garage or driveway for too long without being driven, the battery can decrease as it is not being recharged 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 completely run out of charge is also bad for its longevity, so try to avoid that.

Pay Attention to 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 BMW Mechanic Online

If you have limited time available, or despite putting in real effort on your own, you still can’t get your car to start, consider consulting a BMW 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 BMW 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 BMW mechanics available they can help fix nearly any problem, it doesn’t if matter it’s your M6 that’s having issues or a BMW M5 wont 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 describe the problems you’re having, ask BMW mechanics endless questions, and even upload images and videos so you can demonstrate to the mechanic what you mean. You can connect with them via instant messenger or phone call, whatever you like. The BMW mechanic will ID the problem, recommend the top solution for your specific case, and even walk you through simple maintenance step-by-step.

If you’re seeking reassurance from a certified mechanic before purchasing expensive parts, or just pressed for time – online assistance has real benefits. Give it a try – you may be surprised just how easy and stress-free it is.

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

When and How to Get a Local BMW Mechanics Help

automobile mobile mechanic

When your BMW M6 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 M6 started again ASAP.

So if you think a mobile mechanic is the best solution for you, instead of searching on Google something like  “auto mechanic service 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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Super easy, super reliable, super convenient, and highly recommended.

Conclusion

In short, when your BMW M6 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 find help if necessary, will be a huge help. Keep in mind that routine maintenance is key to preventing most vehicle problems.

Frequently Asked Questions (FAQs) When a BMW M6 Won’t Start

BMW M6 won’t start but lights come on?

If your BMW M6‘s lights illuminate but it still won’t start, the issue is likely not related to the battery. It’s highly possible there is a problem with the starter motor. Check to see if you hear any clicking sounds when attempting to crank 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 repaired or replaced.

BMW M6 won’t start but has power?

When your BMW M6 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. Listen near the back seat when cranking the key – you should hear the fuel pump prime for a few seconds. If not, have a mechanic check the fuel system.

BMW M6 won’t start but battery is fine?

If your BMW M6‘s battery tests fine and is fully charged, but the car still refuses to start, the underlying cause is likely electrical. Potential culprits 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.

BMW M6 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 mechanical repair or replacing, consult with a reliable mechanic to get your BMW M6 running again.

What if my BMW M6 won’t start up?

First things first, take a deep breath and try to stay calm. Check 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 ask for help from a trusted BMW mechanic locally or online.

How do I know if my BMW M6 won’t start because of the battery?

Signs that your BMW’s battery is the issue are, a slow cranking engine, dim headlights, and battery alerts 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 entirely.

How to prevent my BMW M6 from failing to start in the future?

To prevent this frustration from happening again, routine upkeep is crucial. This includes oil changes, inspecting the battery and scrubbing its terminals, changing out the fuel filter when required, and getting your BMW M6 inspected by a mechanic frequently. Additionally, make sure to drive the car regularly so the battery stays charged.

Can I consult an online mechanic if my BMW M6 fails to start up?

Yes, you can. An online mechanic service like ours can offer instant skilled BMW mechanic aid and suggestions, without you having to leave your residence. This is especially helpful if your BMW M6 is unable to start and is immobile in the driveway,.

In what ways can websites like MechanicAnswer.com provide assistance if my BMW M6 isn’t starting?

We connect you with qualified BMW technicians who can offer recommendations particular to your exact quandary. You can update them about your vehicle troubles, ask unlimited questions as needed, upload videos or pictures so you can show in detail the problem. The mechanic will be able to help, diagnose the fault, and put forward the best solution and walk you through it.

Interesting BMW M6 Facts

Did you know that the BMW M6 has a top speed of 155 mph? That’s faster than most commercial airplanes take off! And get this – the M6 can go from 0 to 60 mph in just 4.1 seconds. That’s like going from standing still to highway speeds in the blink of an eye. And if you’re a fan of luxury, you’ll love the fact that the M6 comes with a premium sound system and leather upholstery. It’s like driving around in your own personal concert hall. Plus, with its sleek and stylish design, you’ll turn heads everywhere you go. So, if you’re lucky enough to own a BMW M6, you’ve got yourself one seriously impressive ride.

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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