It is experienced by every driver that time of year arrives when the MOT is due, and the best is hoped for. But what happens if warning signs have already been shown by the car? By recognising the signs early, time, money, and the stress of an unexpected MOT failure can be saved. Before the next MOT is due, the following guide should be considered to identify the most common signs that servicing is needed.
In the UK, an annual MOT test must be carried out on vehicles that are over 3 years old. Through this test, it is ensured that the vehicle can be driven safely and that the minimum road safety and environmental standards set by the government are being met. If an MOT is not passed, a fine could be issued, repairs may be required, and the vehicle may not be allowed on the road until the necessary work has been completed.
For this reason, regular vehicle servicing is considered extremely important. When the condition of a car is maintained throughout the year, rather than only before the MOT, problems can be identified before they become more serious. If a vehicle is kept in good condition, the chances of the MOT being passed on the first attempt are greatly increased.
One of the clearest signs that servicing is required is a flashing dashboard warning light. These lights are used to indicate that a fault has been detected within the vehicle. Common examples include the engine warning light, brake warning light, and oil pressure light.
None of these warning lights should be ignored. During the MOT, warning lights will be checked by the tester, and a failure may be recorded if any remain illuminated. By having the vehicle serviced before the MOT, the issue can be identified and repaired by a mechanic before the test takes place.
Cars are not always silent, but certain noises should be treated as warning signs. If grinding or squealing sounds are being produced by the brakes, worn brake pads may be the cause. If knocking sounds are coming from the engine, a lack of oil or a more serious mechanical issue may be involved. Rattling sounds from underneath the car may indicate a loose exhaust or suspension problem.
If any sound is unfamiliar or unusual, it should be taken seriously. During servicing, the cause of the noise can be identified by a skilled mechanic, and the required repairs can be completed before the MOT in Sheffield.
If a car is pulled to one side while being driven in a straight line, a problem with the tyres, wheel alignment, or brakes may be present. This should not be viewed as only a comfort issue; it is also a safety concern. When a vehicle cannot travel straight, control can become more difficult, especially during emergencies.
This issue is one that will be inspected during the MOT. If servicing is carried out beforehand, tyre pressure, wheel alignment, and brake balance can all be checked and corrected if necessary.
The brakes are regarded as one of the most important safety features on any vehicle. If the brakes feel spongy, if stopping distances are increased, or if grinding noises are being heard, serious warning signs are being presented.
As part of the MOT, the braking system will be thoroughly checked. Worn brake pads, damaged discs, or low brake fluid levels will all be identified. Instead of hoping the brakes will pass the test, car servicing in Sheffield should be arranged in advance so that any problems can be fixed beforehand.
If smoke is being released from the bonnet or exhaust, it should never be ignored. Blue smoke from the exhaust may indicate that oil is being burned by the engine. Excessive fuel consumption may be suggested by black smoke, while white smoke could point to coolant loss.
Unusual smells should also be taken seriously. A burning smell may suggest overheating or burning components, while a strong petrol smell may indicate a fuel leak. Not only can these issues lead to MOT failure, but they may also create safety risks. Through pre-MOT servicing, these faults can be investigated and repaired.
If delays are experienced when starting the car, if clicking noises are heard when the ignition key is turned, or if several attempts are needed before the engine starts, problems with the battery or starter motor may be developing.
A vehicle that does not start reliably cannot be considered fully road-safe. Although an immediate MOT failure may not always result, these symptoms suggest that a fault exists. During servicing, the battery and starting system can be inspected to ensure everything is functioning correctly.
During the MOT, tyres are inspected carefully. In the UK, a minimum legal tread depth of 1.6mm across the centre three-quarters of the tyre is required. Tyres that fall below this limit, or those that are cracked or bulging, will result in a failed MOT.
Tyre condition should be monitored throughout the year. If signs of wear or damage are noticed, the tyres should be inspected well before the MOT date. If needed, replacement tyres can be fitted before the test is carried out.
A small windscreen chip may appear minor, but it can easily develop into a larger crack. If the damage obstructs the driver’s view, an MOT failure is likely to be recorded.
Fortunately, windscreen chip repairs are usually quick and affordable. During servicing, the windscreen can be inspected by a mechanic, and advice can be given on whether repair or replacement is required before the MOT.
An MOT failure does not always mean that a car has been poorly maintained. Many small and easily repairable issues can result in failure, leading to unnecessary expense and inconvenience. By remaining aware of the warning signs listed above and by arranging vehicle servicing before the MOT expiry date, unpleasant surprises can often be avoided.
Regular car servicing should not be viewed as something that only matters before the annual MOT. Through consistent maintenance, the safety, reliability, and performance of the vehicle can be preserved throughout the year. If any of the warning signs above are recognised, a service booking should be arranged as soon as possible.