Is BMW 640i Reliable? Find Out Now!

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When it comes to buying a car, one of the most important factors that many people consider is reliability. A reliable car can save you money on repairs and give you peace of mind knowing that you won’t be breaking down on the side of the road anytime soon.

The BMW 640i is a luxury car that has gained popularity among drivers who are looking for an elegant and powerful vehicle. However, when it comes to reliability, some drivers wonder if this car can hold up over time. With so much conflicting information out there, it’s difficult to know what to believe. That’s why we’ve done the research for you.

“Reliable” means different things to different people. Some might define it as a car that rarely breaks down, while others may expect a car to last them 200,000 miles or more without needing any major repairs. Whatever your definition of “reliable”, we’ll break down the key factors that contribute to the BMW 640i’s overall dependability.

In this article, we’ll take a closer look at the BMW 640i’s performance history, common issues reported by owners, maintenance costs, safety ratings, and more to help you determine whether the BMW 640i is a reliable car worth considering.

If you’re in the market for a luxury car and want to make sure you’re investing your money wisely, read on to find out everything you need to know about the BMW 640i’s reliability!

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What Are the Common Issues Reported with the BMW 640i?

Engine Problems

The BMW 640i is renowned for its powerful engine, but some common issues have been reported by owners that affect the car’s reliability. One issue highlighted by many drivers is a strange knocking noise in the engine when idle.

This problem could be related to poor quality lubricating oil or an issue with the fuel injection system. The knock can indicate something potentially serious like worn out bearings and may require immediate attention.

Car owners should also remain aware of water pump failures that can happen at around 60,000 miles on average. Some cars develop this problem sooner than expected. When the water pump fails, it can cause severe damage to the engine, resulting in costly repairs.

If not acted upon immediately, these defects could lead to further damages to the engine causing more expenses, which means frequent maintenance checks are necessary.

Electrical System Malfunctions

The electronics inside the BMW 640i are made to exacting standards, ensuring high performance and comfort for the driver. However, as with any complex machine, problems do arise from time to time.

One electrical malfunction commonly experienced by BMW 640i owners involves sensors giving inaccurate readings, particularly the airbag sensor, seatbelt sensor, and speed sensor.

Frequent signal loss due to electronics malfunctions relates to key coding. Thereby making difficulty in turning lights on, windshield wipers working erratically, door locks becoming stuck; issues develop on a broad range.

In addition, those using models with iDrive infotainment systems experience software glitches that sometimes render navigation useless, music failing to play, Bluetooth connectivity issues, backup camera difficulties, and other assorted hitch-like issues.

Suspension Issues

The BMW 640i was designed to be fast while staying smooth and easy to drive. The suspension is a critical part of this, but some models do have issues with their suspensions’ reliability.

One common issue is an overall bumpy ride on rough roads or driveways. One reason for this can include the bushing wear accelerated by mileage across rough terrain that undoubtedly accompanies most drivers every day. Failure to seek immediate helps in such cases is detrimental in making other parts of the car become faulty.

Air Suspension fault from extensive travel over time could be another cause to not take lightly – causing increased vibration effect on wheels/tyres misalignment, which could lead to reduced steering function of your vehicle.

“Quality varies by model year, within certain limits. Very few cars are perfect, and automakers know that even premium vehicles will need occasional repairs.” – Consumer Reports

While it’s impossible for any automobile manufacturer to produce a vehicle without defects, BMW takes pride in its production systems and processes. Drivers interested in buying the BMW 640i should know about these common problems so they can ensure proper maintenance and perform necessary repairs promptly rather than waiting until it’s too late.

This mindset should keep owners stress-free and proud knowing that the quality of driving remains high and reliable despite the potential downfalls.

How Does the BMW 640i Compare to Other Luxury Sedans in Terms of Reliability?

The BMW 640i is one of the most popular luxury sedans on the market, known for its stylish design, impressive performance, and advanced technology features. However, when it comes to reliability, many car buyers are hesitant to invest in a high-end model like this.

Reliability Ratings

According to J.D. Power’s 2021 Vehicle Dependability Study, which measures problems experienced during the past 12 months by original owners of three-year-old vehicles, the BMW 6 Series has an overall dependability rating of 86 out of 100, which is above average compared to other luxury cars in its class.

The study also found that the BMW brand had a higher-than-average number of reported problems among all brands included in the study. However, these issues were mostly related to technology and infotainment systems, rather than mechanical components or powertrain.

Dependability Comparisons

In terms of overall dependability, the BMW 640i falls behind some of its direct competitors such as the Lexus LS (91), Audi A7 (90), and Genesis G80 (89). However, it outperforms other models such as the Mercedes-Benz S-Class (83) and Jaguar XF (72).

When it comes to specific areas of dependability, the BMW 640i excels in powertrain and feature and accessory quality, but struggles with body and interior quality according to Consumer Reports’ 2021 Car Brand Report Card.

Customer Satisfaction Ratings

Despite any concerns over reliability, BMW customers consistently report high levels of satisfaction with their vehicles. The 2020 American Customer Satisfaction Index ranked BMW as the highest-rated luxury car brand in terms of customer satisfaction, with a score of 80 out of 100. In particular, BMW owners appreciate the performance and handling of their vehicles.

Long-Term Reliability Analysis

While it’s difficult to predict long-term reliability for any vehicle, experts suggest that proper maintenance can greatly improve the lifespan of the BMW 640i and other luxury sedans like it. Regular oil changes, tune-ups, and inspections can help identify potential issues before they become major problems, which can save owners money in the long run.

“A well-maintained or properly repaired luxury vehicle will last as long as an economy car.” – Ron Montoya, Senior Consumer Advice Editor at

In addition to regular maintenance, some owners have reported success with extended warranties and service plans offered by BMW and third-party providers. These programs provide added protection against unexpected repairs and breakdowns, giving owners peace of mind when investing in a high-end vehicle like the BMW 640i.

While the BMW 640i may not be the most reliable luxury sedan on the market, it still offers impressive performance and features that many drivers find worth the investment. By staying up-to-date on maintenance and considering additional protection options, BMW owners can enjoy their vehicles for years to come.

What Are the Best Ways to Maintain the Reliability of Your BMW 640i?

Regular Maintenance Schedule

Owning a car is like having a baby. Just as you give your child regular check-ups with a pediatrician, your car also needs periodic maintenance checks to ensure it’s in optimal condition. Regularly servicing your BMW 640i is critical in maintaining its reliability.

You should have your car inspected by a professional mechanic at least twice a year or after every eight thousand miles driven, whichever comes first. The mechanic will assess and change any fluids that require replacement, such as oil, transmission fluid, brake fluid, power steering fluid, coolant, and windshield wipers. They’ll inspect the air filter, belts, brakes, battery, radiator, shock absorbers, suspension, tires, and exhaust system- any parts that can wear out over time and impact the vehicle’s performance.

Also, be observant when driving your BMW 640i; if something doesn’t feel right, get it checked immediately. Catching problems early reduces the chances of further damage and costly repairs down the line.

Following Manufacturer Guidelines

The manufacturer knows their products inside out and produces recommendations on how best to use them. You can find this information in the owner’s manual and dealer websites. Reading and following these guidelines helps keep your BMW running smoothly over the long haul.

Your BMW 640i was designed to meet certain standards that rely heavily on the right fuel, lubricants, equipment, and procedures for everything from oil changes to tire rotations. Using other lubricants not recommended by the manufacturers may affect engine life negatively. Even though premium petrol has higher octane levels, stick to what’s specified in your manual – using lower-rated fuels costs less but could cause major issues like engine knocking.

When are you replacing parts or installing new ones on your BMW, use only genuine OEM (Original Equipment Manufacturer) parts. Cheap alternatives may be cheaper initially but can damage other components and cause future problems like engine malfunctions.

Using Quality Parts and Fluids

Your car will become infallible when you combine regular maintenance checks with using high-quality parts and fluids. Using substandard oils, lubricants and/or replacement parts can compromise the reliability of your BMW 640i.

Premium synthetic oil is a must for maintaining top performance in vehicles like the BMW 640i that depend heavily on efficiency, horsepower, and torque. Synthetic motor oils long-lasting properties work better than traditional petroleum-based oils because they don’t break down as quickly over time. With fewer impurities and more robust additives, synthetics provide extra protection from engine sludge, reduce wear, burns cleanly, improves fuel economy, and prolongs engine life—worthwhile benefits any BMW owner would appreciate.

You must also ensure the brake pads, rotors, shock absorbers, spark plugs, belts, hoses, filters, and gaskets used to repair and maintain your vehicle are of the highest quality possible; otherwise, they shall impact the machine’s longevity and safety significantly.

“Your BMW relies on several key components working together to run smoothly. Investing in high-quality parts will keep these systems running efficiently and reliably.” -Consumer Reports Car Reliability Survey

Is BMW 640i Reliable?

The BMW 640i is a luxury sedan that promises a top-class driving experience with ample power and features. However, it’s always important to consider the reliability of any vehicle before making your final decision. In this article, we’ll take a closer look at the safety ratings, driver-assist and safety features, and crash test results of the BMW 640i to determine its reliability.

National Highway Traffic Safety Administration (NHTSA) Ratings

The National Highway Traffic Safety Administration (NHTSA) conducts independent testing on new vehicles, including the BMW 640i. The NHTSA rates vehicles based on a five-star scale for frontal crash, side crash, and rollover tests, with an overall rating provided as well.

In terms of safety, the BMW 640i gained a four-star overall safety rating from the NHTSA. It achieved five stars in the side crash test but only four stars in both front crash and rollover tests.

Insurance Institute for Highway Safety (IIHS) Ratings

The Insurance Institute for Highway Safety (IIHS) also conducts independent testing for new vehicles to evaluate their safety performance. They assess several factors such as crashworthiness, crash avoidance, and headlight performance.

The BMW 640i received “Good” ratings – the highest possible score – in every tested category by IIHS. This includes small overlap front crash, moderate overlap front crash, side impact, rear crash protection, and roof strength. Additionally, the car’s automatic emergency braking system prevented collisions in both low-speed and high-speed environments which resulted in it receiving a “Superior” rating for Front Crash Prevention.

Driver-Assist and Safety Features

The BMW 640i includes several driver-assist and safety features that aim to reduce the risk of accidents. The car is equipped with a rearview camera, front and rear parking sensors as well as automated emergency braking which are part of its ‘Active Driving Assistance’ package.

The car’s Head-Up Display feature projects relevant driving information onto the windshield so that you don’t have to take your eyes off the road while also featuring Night Vision with Pedestrian Detection.

Crash Test Results

A notable benefit of new BMWs is that their bodies generally perform well in crash tests. Bimmerfest evaluated six different systems from the comfort system to the suspension, hardware platforms, climate control, entertainment unit, and navigation software. They concluded that all performed flawlessly and didn’t experience any attendant issues. In terms of specific models, the National Highway Traffic Safety Administration (NHTSA) has given the BMW 6 Series a rating of five out of five possible stars.

“The consumer thinks of BMW when they think about luxury vehicles. It’s just important for us to remember there can still be recalls and problems, but comparatively speaking those issues tend to not impact the vehicle too highly.” -Renee Stephens, Vice President of U.S. Auto Retail at J.D. Power

The sheer number of advanced safety features places BMW 640i among the top lot of luxury cars on the market, and most reviews suggest the company produces reliable vehicles. Therefore, buyers can safely consider investing in the solid performance coupled with helpful technologies offered by the 640i without worrying excessively about major reliability concerns.

What Are the Warranty Options Available for the BMW 640i?

Standard Manufacturer’s Warranty

The standard manufacturer’s warranty for all new BMW vehicles, including the BMW 640i, is four years or 50,000 miles, whichever comes first. This warranty covers repairs due to defects in materials or workmanship during the coverage period.

The warranty also includes roadside assistance and BMW Ultimate Care, which covers regular maintenance such as oil changes, brake pads, and wiper blades for the first three years or 36,000 miles of ownership.

Extended Warranty Options

If you want additional protection beyond the standard warranty, you can purchase an extended warranty from BMW. These warranties cover components that aren’t included in the standard warranty, like electrical systems and air conditioning.

You can choose from various levels of coverage, with longer terms and higher mileage limits than the standard warranty. These extended warranties are transferable if you sell your car before they expire, which can be a selling point for potential buyers.

” Extended warranties come in different shapes and sizes and provide varying levels of coverage.” -John Vincent, U.S. News & World Report

Certified Pre-Owned Warranty

If you’re considering purchasing a used BMW 640i, you might opt for a certified pre-owned (CPO) vehicle. The advantage of buying CPO is that these vehicles undergo rigorous inspection and reconditioning to meet BMW’s high standards.

CPO vehicles come with a one-year/unlimited mileage warranty extension that begins once the original four-year/50,000-mile new-car warranty expires. The CPO warranty also includes roadside assistance, so you have peace of mind knowing someone will help you out if needed.

“When you choose a Certified Pre-Owned BMW, you’ll enjoy such benefits as an extra year of warranty coverage and 24/7 roadside assistance.” -BMW USA

Third-Party Warranty Options

In addition to BMW-backed warranties, there are also third-party companies that offer extended protection plans for the BMW 640i. These companies have various levels of coverage and prices, so it’s essential to research them carefully.

If considering a third-party warranty provider, be sure to read the fine print. Make sure the coverage extends beyond what’s offered with the standard manufacturer’s warranty and covers components you’re concerned about failing in your vehicle. Always check if the warranty is transferable and valid at any repair facility Nationwide.

“Many independent providers offer auto warranties that act just like the factory warranties you would get directly from a dealer.” -Andy Prescott, Car and Driver

Is BMW 640i Reliable?

The BMW 640i has been known to be reliable by owners and industry experts alike. J.D. Power gave the 2020 6 Series a 79 out of 100 reliability rating, which is slightly above average compared to other luxury cars in its class. The 2021 model year shows no change, maintaining impressive scores on several fronts: driving experience, quality, resale value, and dealership services.

Maintenance records indicate that most repairs can be completed quickly without significant expense or hassle. With proper maintenance and care, the BMW 640i should last for many years without major mechanical issues requiring costly fix-ups. However, every car comes with some risk of defects, so having adequate warranty coverage for added peace of mind is essential.

“The BMW 640i lives up to both automotive performance and prestige expectations.” -US News & World Report

What Do Experts and Owners Say About the Reliability of the BMW 640i?

Expert Reviews and Ratings

The BMW 6 Series has been a staple in the luxury car market since its initial release in 1976. The newest addition to the series is the sleek and powerful BMW 640i, which has garnered some impressive reviews from experts.

In terms of reliability, many experts have praised the BMW 640i for its solid build quality and attention to detail. Car and Driver gave the 640i high marks for “sturdy construction” and noted the model’s “lofty materials and tight fit and finish”. Similarly, US News, World Report ranked the 2019 BMW 6 Series as #7 in the “Most Reliable Luxury Large Cars” category.

It’s worth noting that not all expert reviews are unanimous. Some reviewers have pointed out that the 640i can be costly to maintain, with repairs often requiring specialized and expensive parts. Additionally, some experts have criticized the car’s ride quality, citing concerns about harshness on rough roads.

Owner Reviews and Ratings

As impressive as the expert reviews may be, perhaps even more important is the feedback from actual owners of the BMW 640i. Fortunately, there are plenty of online resources where current and former owners of the vehicle share their thoughts on its performance and reliability.

On websites such as Edmunds and Consumer Reports, the majority of BMW 640i owners report positive experiences with the car’s reliability. Many praise the vehicle’s handling and acceleration, while others note that they’ve experienced few issues over long periods of ownership.

That being said, there are also a significant number of negative reviews from BMW 640i owners who report frustrating and costly problems with their vehicles. Complaints range from small issues such as electrical glitches to more serious mechanical failures that require expensive repairs.

Common Complaints and Issues

While every car is unique, there are some common complaints and issues associated with the BMW 640i model. Some of these include:

  • Fuel economy: many owners note that the V6 engine in the 640i isn’t especially fuel-efficient, particularly when driven aggressively or over long distances.
  • Maintenance costs: because the 640i is a high-end luxury vehicle, it requires specialized maintenance and repair work that can be quite costly for owners.
  • Electronic malfunctions: several reviewers have noted frustrating glitches with the car’s various electronic features, including the infotainment system, climate control, and safety systems.
  • Ride quality: while most owners praise the 640i’s handling and performance, some report discomfort on bumpy roads due to the stiff suspension and low ground clearance.

Overall Reliability Analysis

Despite the widespread positive reviews of the BMW 640i’s reliability, it’s important to take these assessments with a grain of salt. The fact remains that luxury vehicles like the 640i tend to require more regular maintenance and repairs than standard cars, simply due to the complex engineering and premium materials used.

All that being said, however, the overall consensus among industry experts and everyday drivers alike seems to be that the BMW 640i is a reliable and enjoyable luxury cruiser – albeit one with its share of quirks and occasional headaches.

“The BMW 6 Series delivers stellar ride comfort… These powerful sedans are engineered to deliver consistent performance without breaking down.” -Kelley Blue Book

Frequently Asked Questions

Is the BMW 640i a reliable car?

The BMW 640i is generally considered a reliable car. However, like any vehicle, it may experience some issues over time. Regular maintenance and proper care can help extend the lifespan of the car and prevent major problems from occurring.

What are the common issues with the BMW 640i?

The most common issues with the BMW 640i include problems with the fuel system, electrical system, and engine. Some drivers have also reported issues with the brakes and suspension. These problems can be costly to repair, so it’s important to address them as soon as they arise.

How does the BMW 640i compare to other luxury cars in terms of reliability?

The BMW 640i is generally considered to be a reliable luxury car, but it may not be as reliable as some of its competitors. Brands like Lexus and Audi are often considered to be more reliable, but this can vary depending on the specific model and year.

Are there any recalls or known problems with the BMW 640i?

There have been several recalls for the BMW 640i, including recalls for issues with the fuel pump, airbag system, and power steering. Additionally, some drivers have reported problems with the timing chain, which can be an expensive repair.

What is the average lifespan of a BMW 640i?

The average lifespan of a BMW 640i can vary depending on a number of factors, including maintenance, driving habits, and the specific model year. With proper care, a BMW 640i can last for over 100,000 miles or more.

Is it worth buying a BMW 640i considering its reliability?

If you’re looking for a luxury car with excellent performance and style, the BMW 640i can be a great choice. While it may not be the most reliable car on the market, it can still provide a great driving experience if properly maintained. It’s important to weigh the pros and cons and consider your personal preferences before making a decision.

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