Why Steering and Suspension Faults Are Increasing in MOT Failures

What is causing more steering and suspension MOT failures in the UK?

As the UK vehicle parc continues to evolve, so too does the way faults are identified and addressed. Steering and suspension systems are now a leading cause of MOT failures, with industry insights pointing to a noticeable increase in defects  As a result of deteriorating UK roads and the increase of potholes

For workshops and motor factors, this reflects a wider shift in vehicle maintenance patterns, particularly as electric vehicles become more common on UK roads.

Are steering and suspension issues now a leading cause of MOT failures?

Yes - steering and suspension faults are now among the most common reasons for MOT failure in the UK.

Recent findings indicate that a significant proportion of MOT failures are linked to suspension-related issues, including:

• Worn components

• Damaged or broken springs

• Leaking shock absorbers

Steering components also contribute, with wear in parts such as bushes, tie rod ends and ball joints impacting vehicle safety and test outcomes.

Alongside these, other frequent MOT failure areas include:

• Lighting systems

• Braking components

• Tyres

This reinforces the need for a complete and consistent vehicle inspection approach.

Why are steering and suspension faults often missed?

Steering and suspension faults are commonly described as “hidden” because they develop gradually and are not always apparent during everyday driving.

In many cases, drivers may not notice symptoms until the problem becomes severe.

These faults can:

• Affect handling and stability

• Reduce braking efficiency

• Accelerate tyre wear

How are EVs and servicing trends affecting MOT outcomes?

Changing servicing patterns are a key factor behind the rise in steering and suspension MOT failures.

Traditional internal combustion engine (ICE) vehicles typically follow structured servicing schedules, allowing regular inspection of wear-and-tear components. However, this is not always the case with newer vehicle types, including EVs.

• Fewer routine servicing intervals

• Reduced inspection touchpoints

• Longer gaps between checks

As a result, steering and suspension components may go unchecked for extended periods.

Answer in short: With fewer regular inspections, faults are more likely to develop unnoticed and only be identified during the MOT.

Do EVs put more strain on steering and suspension components?

Vehicle design is evolving, and factors such as increased vehicle weight and performance characteristics can place additional demand on steering and suspension systems.

This makes component condition even more critical, particularly as these systems directly influence:

• Vehicle control

• Ride stability

• Braking performance

As the vehicle parc changes, maintaining steering and suspension performance remains essential for safe operation.

How do suspension faults impact overall vehicle safety?

Steering and suspension systems are closely linked to other key vehicle components. When faults develop, the impact is not isolated

For example:

• Worn suspension can lead to uneven or accelerated tyre wear

• Reduced stability can affect braking performance

• Steering wear can compromise driver control

Definition: Steering and suspension systems are safety-critical components that directly affect vehicle stability, handling and braking efficiency.

What does this mean for workshops and the aftermarket?

This shift in MOT failure trends presents a clear opportunity for workshops and motor factors.

As routine servicing patterns change, there is increasing value in offering proactive inspections outside of the MOT cycle.

• Regular visual checks

• Early identification of wear

• Preventative maintenance

In practice: Workshops that introduce steering and suspension checks between MOTs can help reduce failure rates and improve customer retention.

Why is steering and suspension quality more important than ever?

As steering and suspension systems take on greater importance across modern vehicles, the focus on quality, consistency and fit becomes critical.

Reliable components support:

• Consistent performance

• Predictable handling

• Long-term durability

This is especially important as inspection habits continue to evolve and faults are detected later in the wear cycle.

Conclusion: Why are more vehicles failing MOTs on suspension and steering?

The increase in steering and suspension-related MOT failures reflects a broader shift in vehicle maintenance and inspection behaviour.

In summary:

• Faults develop gradually and are often not visible

• Servicing intervals are changing, reducing inspection frequency

• The MOT is increasingly the first point of full assessment

For the aftermarket, this highlights the importance of proactive inspection and continued focus on safety-critical components.