7 Mechanical Failures That Cause Car Accidents

Mechanical failures are one of the leading causes of car accidents, often resulting from poor maintenance, defective components, or unexpected breakdowns. When a vehicle’s critical systems fail, drivers may lose control, reducing their ability to react in time to prevent a collision.

Understanding the most common mechanical failures that lead to accidents is crucial in ensuring road safety. Regular vehicle maintenance and proactive inspections can help reduce the likelihood of these failures, so in this guide, we will explore the mechanical issues that pose the highest risk and how regular maintenance can help lessen the risk of accidents. Let’s dive in!

Most Common Mechanical Failures That Lead to Car Accidents

Brake System Failures

Brake system failures are among the most dangerous mechanical issues a driver can face. A malfunctioning brake system can prevent a vehicle from stopping in time, leading to severe accidents.

Causes:

• Worn-out brake pads and discs
• Leaking brake fluid
• Faulty master cylinder
• Malfunctioning ABS (Anti-lock Braking System)

Prevention:

• Regular brake inspections
• Replacing worn-out brake components promptly
• Checking brake fluid levels and refilling when necessary

Tire Blowouts and Tread Wear

Tires are the only point of contact between a vehicle and the road, making them crucial for safety. Blowouts or excessive tread wear can lead to loss of control, particularly at high speeds.

Causes:

• Underinflated or overinflated tires
• Worn-out or uneven tire tread
• Manufacturing defects
• Overloading the vehicle

Prevention:

• Checking tire pressure regularly
• Rotating tires to ensure even wear
• Replacing old or damaged tires

Steering and Suspension Issues

Steering and suspension failures can make it difficult for a driver to control their vehicle, increasing the risk of accidents, especially when navigating sharp turns or rough terrain.

Causes:

• Worn-out steering components
• Damaged suspension system
• Power steering fluid leaks

Prevention:

• Inspecting the steering and suspension systems regularly
• Replacing faulty parts before they lead to complete failure

Engine and Transmission Failures

Engine and transmission issues can cause a vehicle to stall, hesitate, or suddenly lose power, increasing the likelihood of a collision.

Causes:

• Overheating engine
• Low transmission fluid
• Faulty spark plugs or fuel injectors
• Failing timing belt or chain

Prevention:

• Regularly changing engine oil and transmission fluid
• Addressing check engine light warnings promptly
• Scheduling professional inspections

Faulty Headlights, Taillights, and Signal Lights

Malfunctioning lights reduce visibility, making it harder for other road users to see your vehicle, particularly in low-light conditions.

Causes:

• Burned-out bulbs
• Electrical wiring issues
• Faulty fuses

Prevention:

• Checking and replacing bulbs regularly
• Ensuring lights function correctly before driving at night

Windshield Wiper and Visibility Issues

A dirty or damaged windshield, along with malfunctioning wipers, can impair visibility during adverse weather conditions, increasing the risk of accidents.

Causes:

• Worn-out wiper blades
• Empty or clogged washer fluid reservoir
• Cracked or dirty windshield

Prevention:

• Replacing wiper blades every 6-12 months
• Refilling washer fluid regularly
• Repairing or replacing a cracked windshield

Accelerator and Throttle Malfunctions

Throttle or accelerator malfunctions can cause unintended acceleration or failure to maintain speed control, leading to serious crashes.

Causes:

• Sticking throttle cable
• Faulty sensors
• Electronic control unit failure

Prevention:

• Regularly inspecting the throttle system
• Addressing engine warning lights promptly

Preventing Mechanical Failures and Ensuring Vehicle Safety

Routine Vehicle Inspections and Maintenance

Regular inspections and servicing are key to preventing mechanical failures. Routine maintenance can identify minor issues before they escalate into major problems.

• Follow the manufacturer’s recommended service schedule
• Get professional inspections before long trips
• Ensure proper fluid levels and tire pressure

Recognising Warning Signs of Mechanical Issues

Many mechanical failures give warning signs before they lead to an accident. Drivers should be vigilant and address these issues immediately:

• Unusual noises from the engine or brakes
• Vibrations while driving
• Warning lights on the dashboard
• Unresponsive or stiff steering

The Role of Professional Inspections and Repairs

While DIY maintenance can help, professional inspections ensure that critical components are properly assessed. Mechanics have the expertise to diagnose and fix issues before they become hazardous.

• Schedule periodic professional inspections
• Use certified mechanics for repairs
• Avoid ignoring minor issues that could escalate

What to Do If a Mechanical Failure Causes an Accident

Immediate Steps to Take After a Mechanical-Related Accident

If a mechanical failure leads to an accident, follow these steps:

1. Ensure safety by moving to a safe location, if possible.
2. Call emergency services for medical assistance and accident reporting.
3. Document the scene with photos and gather witness statements.
4. Contact your insurance provider to report the incident.

Legal Responsibilities and Liability

Determining liability in mechanical failure accidents can be complex. Possible responsible parties include:

• The vehicle owner (for lack of maintenance)
• Auto manufacturers (for defective parts)
• Mechanics (for improper repairs)

Consulting a legal expert can help clarify liability and the next steps.

Seeking Compensation for Mechanical Failure Accidents

If an accident occurs due to a mechanical failure that was not your fault, you may be eligible for compensation. Whether it’s due to a defective part or a negligent mechanic, you have legal options. You can see how to get professional assistance over on our website if you’re in need of guidance on non-fault accidents and claims.

Final Thoughts

Mechanical failures can lead to devastating car accidents, but many are preventable with proper maintenance and timely repairs. By staying proactive with vehicle care, drivers can reduce risks and enhance road safety.