12/08/2018
Understanding Drop Link Failures and MOT 'Sealing'
The MOT test is a crucial annual check designed to ensure your vehicle is roadworthy and safe. However, the interpretation of certain advisory notes and failures can sometimes be a source of confusion for drivers. One such area that often sparks questions relates to drop links and their assessment under the 'sealing' category during an MOT. This article aims to demystify what a drop link failure, particularly in relation to 'sealing', truly signifies, what it means for your vehicle's roadworthiness, and your rights as a driver.
What is a Drop Link?
Before delving into failures, it's essential to understand what a drop link is and its function. A drop link, also commonly known as an anti-roll bar link or stabiliser link, is a component of your vehicle's suspension system. It connects the anti-roll bar (or stabiliser bar) to the suspension arm or shock absorber. The primary purpose of the anti-roll bar and its links is to reduce body roll when cornering. By linking the left and right sides of the suspension, it helps to keep the vehicle more level and stable, improving handling and comfort.
The MOT Test and 'Sealing'
The MOT test examines various aspects of your vehicle's condition, categorising issues as 'minor defects', 'advisories', or 'major defects' (which result in a fail). The term 'sealing' in the context of an MOT failure for a drop link is less common. Typically, drop links would be assessed for wear, damage, or looseness in their joints or mountings. A failure related to a drop link would usually be due to:
- Excessive wear in a ball joint: The joint connecting the link to the suspension can wear out over time, leading to play and a potential failure.
- Damaged or corroded components: Cracks, significant corrosion, or bending of the link itself can compromise its integrity.
- Loose or missing fixings: If the bolts or nuts securing the drop link are loose or missing, this would be a clear safety defect.
The notion of a drop link failing on 'sealing' might be a misinterpretation or a very specific, unusual classification by a particular tester. If a drop link is not split, cut, or adrift, it's difficult to see how it could fail under a 'sealing' criterion in a way that a tester could demonstrably prove to be a failure if challenged. The tester must be able to prove that the component is no longer performing its intended function.
What Happens if a Drop Link Fails?
If your vehicle fails its MOT due to a faulty drop link, the tester will issue a refusal of an MOT certificate. The failure will be recorded, and the vehicle is technically not roadworthy according to the MOT regulations from that point onwards. However, this does not automatically mean you cannot drive your car.
Can You Drive Your Car After an MOT Fail?
This is a common point of confusion, often exacerbated by well-meaning but sometimes misinformed advice from garages. The general rule is that if your MOT certificate has expired, you cannot legally drive your car on public roads until it has passed an MOT test. However, there are exceptions:
- Driving to a pre-arranged MOT test: If your existing MOT certificate is still valid, but you are taking your car for a new test (perhaps because you anticipate a failure or want to get it done early), you can drive it to the test centre.
- Driving to a place of repair: If your car has failed its MOT and the certificate has expired, you can drive it to a place where you intend to have the necessary repairs carried out. This could be your own garage or a specialist repair shop, even if it's a significant distance away.
- Driving after repairs: Once the necessary repairs have been completed, you can drive the vehicle to a pre-arranged MOT test to have it re-inspected.
It's crucial to understand that the DVSA (Driver and Vehicle Standards Agency) has clarified these rules. The fear-mongering that you cannot move your car an inch after a fail is generally unfounded, especially if you are heading directly for repairs or a re-test. Always check the current regulations on the GOV.UK website for the most accurate information.
Challenging an MOT Failure
If you believe your vehicle has been failed incorrectly, you have the right to appeal the decision. This is particularly relevant if the failure seems subjective, like a potential issue with 'sealing' on a drop link that appears otherwise sound. The process involves:
- Contacting the MOT test centre: Discuss your concerns with the garage owner or manager.
- Appealing to the DVSA: If you are not satisfied with the garage's response, you can appeal to the DVSA within a specified timeframe (usually 14 days of the test date). You will need to provide details of the failure and your reasons for appeal.
If your appeal is successful, your vehicle will be deemed to have passed the MOT, and you may be entitled to a refund of the MOT test fee. Furthermore, garages that have their failure decisions overturned can be subject to closer scrutiny by the DVSA, potentially leading to more frequent spot checks.
The Validity of an MOT Certificate
An MOT certificate is valid for a specific period, usually 12 months from the date of the test. However, it's important to remember that an MOT certificate confirms the vehicle's condition at the time of the test. It does not guarantee the vehicle's safety or roadworthiness for the entire duration of the certificate's validity. Components can fail unexpectedly at any time.
The argument that a tester can shorten the life of a certificate for something 'discovered' within its validity period, especially if it's a minor or debatable point like 'sealing', is a strong one. The fact that the DVSA reverted to the system where a valid certificate's expiry date is respected, and driving to repairs/tests is permitted, underscores this. If your MOT certificate is still valid, your car is legally considered roadworthy until that certificate expires, provided you are driving it to a pre-arranged test or for repairs.
Comparing Drop Link Issues
To illustrate potential issues with drop links, consider the following table:
| Issue | Likely MOT Outcome | Severity | Action Required |
|---|---|---|---|
| Excessive play in ball joint | Fail (Major Defect) | High | Replace drop link |
| Split or perished gaiter (dust cover) | Advisory (Minor Defect) or Fail if significant damage to joint | Medium | Monitor, consider replacement |
| Corrosion on mounting points | Advisory (Minor Defect) | Low | Clean and treat, monitor |
| Loose fixing nuts/bolts | Fail (Major Defect) | High | Tighten or replace fixings |
| No visible damage, but tester claims failure on 'sealing' (hypothetical) | Potential Fail (if tester insists) | Low (if unfounded) | Challenge the failure, seek second opinion |
Frequent Questions About Drop Link Failures
Q1: Can I drive my car if it fails the MOT on a drop link?
As long as your previous MOT certificate is still valid, you can drive your car to a pre-arranged MOT test or to a place of repair. If your previous MOT has expired, you can only drive it to a place of repair or to a pre-booked MOT test.
Q2: What exactly is a 'sealing' failure for a drop link?
This is not a standard or common classification for a drop link failure. Drop links typically fail due to wear in the joints, damage to the link itself, or loose fixings. A 'sealing' failure might refer to a damaged or missing dust cover (gaiter) on the joint, which, if it leads to the joint being contaminated or worn, could result in a fail. However, a failure solely on the basis of 'sealing' without demonstrable wear or damage would be unusual and potentially challengeable.
Q3: How much does it cost to replace a drop link?
The cost can vary depending on the make and model of your vehicle and whether you use a main dealer or an independent garage. Generally, parts can range from £15 to £50, with labour adding another £30 to £80. So, expect a total cost of roughly £45 to £130 per drop link, though this is an estimate.
Q4: Are drop links important for safety?
Yes, drop links are an important part of the suspension system that contributes to vehicle stability and handling. A worn or broken drop link can affect your car's cornering ability, potentially leading to unpredictable behaviour, especially during evasive manoeuvres. Therefore, they are a critical safety component.
Q5: What should I do if I disagree with the MOT failure?
If you believe the MOT failure is incorrect, you have the right to appeal. First, discuss your concerns with the testing station. If you remain unsatisfied, you can appeal to the DVSA. Keep all documentation, including the refusal certificate and any evidence you have to support your claim.
Conclusion
While the MOT test is a vital safety check, understanding the specifics of failures, such as a potential 'sealing' issue with a drop link, is important. Always seek clarity from your tester if you are unsure about a failure reason. Remember your rights regarding driving after a fail and the possibility of appealing an incorrect decision. Prioritising clear communication and accurate information will help you navigate the MOT process smoothly and ensure your vehicle remains safe and legally compliant on the road. If a garage attempts to unduly influence your understanding or use fear tactics, it may be wise to seek a second opinion or consider taking your business elsewhere.
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