Rev Up Your Automotive Smarts

Warning: Coil Spring Failure Epidemic Causing Vehicle Catastrophes!

What to know

  • Coil springs, the unsung heroes of our vehicles, play a pivotal role in ensuring a smooth and comfortable ride.
  • A telltale sign of coil spring failure is a noticeable drop in the vehicle’s ride height.
  • The cost of coil spring replacement varies depending on the vehicle and the extent of the repair.

Coil springs, the unsung heroes of our vehicles, play a pivotal role in ensuring a smooth and comfortable ride. However, the question of “is coil spring MOT failure” looms over car owners, casting a shadow of uncertainty. This blog post delves into the intricacies of coil spring failure, exploring its causes, symptoms, and implications for MOT inspections.

Causes of Coil Spring Failure:

  • Corrosion: Exposure to moisture and road salts can corrode coil springs, weakening them over time.
  • Overloading: Exceeding the vehicle’s weight capacity puts excessive strain on coil springs, leading to premature failure.
  • Manufacturing Defects: Occasionally, defective springs may fail prematurely due to flaws in the manufacturing process.
  • Age and Wear: Like all mechanical components, coil springs are subject to wear and tear over time, eventually losing their elasticity.

Symptoms of Coil Spring Failure:

  • Sagging Vehicle: A telltale sign of coil spring failure is a noticeable drop in the vehicle’s ride height.
  • Rough Ride: Worn or broken coil springs can result in a rough and uncomfortable ride, especially over uneven surfaces.
  • Uneven Tire Wear: Failed coil springs can cause uneven tire wear, as they affect the vehicle’s suspension geometry.
  • Rattling Noises: Broken or loose coil springs may produce rattling or clunking noises when driving over bumps.

Implications for MOT Inspections:

During an MOT inspection, coil springs are checked for their condition and functionality. If any defects or failures are detected, the vehicle will fail the test, necessitating repairs before it can be deemed roadworthy.

Prevention and Maintenance:

Regular maintenance and preventive measures can help extend the lifespan of coil springs:

  • Protect from Corrosion: Use anti-corrosion sprays or coatings to prevent rust and corrosion.
  • Avoid Overloading: Adhere to the vehicle’s recommended weight limits to prevent premature spring failure.
  • Inspect Regularly: Periodically check coil springs for signs of wear, corrosion, or damage.
  • Replace in Pairs: When replacing coil springs, it’s advisable to replace them in pairs to ensure even suspension performance.

Repair Options:

If coil springs fail, there are several repair options available:

  • Spring Replacement: The most common solution is to replace the failed springs with new ones.
  • Spring Repair: In some cases, minor spring damage can be repaired using specialized techniques.
  • Coil Spring Conversion: Some vehicles allow for the conversion of coil springs to air springs or other aftermarket suspension systems.

Summary:

While coil spring failure is not inevitable, it’s a possibility that car owners should be aware of. By understanding the causes, symptoms, and implications of coil spring failure, you can take proactive measures to prevent or mitigate the issue. Regular maintenance, careful driving habits, and timely repairs can help ensure your vehicle passes its MOT inspections and continues to provide a comfortable and safe ride.

Questions You May Have

Q: How often should I check my coil springs?
A: It’s recommended to inspect coil springs at least once a year or whenever you notice any signs of failure.

Q: Can I drive with a broken coil spring?
A: Driving with a broken coil spring is not recommended, as it can compromise the vehicle’s stability and handling.

Q: What is the average lifespan of coil springs?
A: Coil springs typically last between 50,000 to 100,000 miles, depending on driving conditions and vehicle usage.

Q: Is coil spring replacement expensive?
A: The cost of coil spring replacement varies depending on the vehicle and the extent of the repair. However, it’s generally less expensive than replacing other suspension components.

Q: Can I replace coil springs myself?
A: While it’s possible to replace coil springs yourself, it’s recommended to have them replaced by a qualified mechanic to ensure proper installation and safety.

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About the Author
Cars have been my passion from a young age as I enjoyed learning how engines work, spending hours dreaming about the supercars I hoped to own, and I now have my dream job as a product designer for a luxury automaker. In my spare time I love going to car...