For many drivers, MOT time can feel stressful — but a little preparation beforehand can improve your chances of passing first time and help you avoid unnecessary repair costs.
The good news is that many common MOT failures can be spotted and fixed before test day with a few simple checks.
Here’s how to prepare your car for its MOT.
1. Check Your Tyres
Tyres are one of the most common reasons for MOT failures, so they should always be one of the first things you inspect.
Before your MOT, check:
- Tyre tread depth
- Tyre pressure
- Visible damage or uneven wear
Tread depth
In the UK, the legal minimum tyre tread depth is 1.6mm across the central three-quarters of the tyre. Anything below this can result in an MOT failure and may also be unsafe in wet conditions.
Tyre pressure
Incorrect tyre pressure can affect handling, braking, and tyre wear. Make sure your tyres are inflated to the manufacturer’s recommended levels before your test.
2. Check Your Windscreen, Wipers and Washers
Your windscreen and wipers are essential for visibility and road safety.
Before your MOT, inspect for:
- Chips or cracks in the windscreen
- Damaged or split wiper blades
- Empty screenwash fluid
Small chips can sometimes become larger cracks over time, especially during colder weather, so it’s best to deal with them early.
While checking fluids, it’s also worth topping up:
- Engine oil
- Brake fluid
- Coolant
- Screenwash
3. Test Your Seatbelts and Seats
Seatbelts are a key safety feature and are always checked during an MOT.
Make sure that:
- All seatbelts extend and retract properly
- Buckles click securely into place
- Belts are free from damage or fraying
The driver’s seat must also adjust correctly and remain securely fixed in position.
4. Look for Dashboard Warning Lights
Dashboard warning lights are another common MOT failure point.
When you start the car, warning lights should briefly illuminate and then disappear shortly afterwards.
If any warning lights remain on — especially relating to:
- Airbags
- Brakes
- ABS
- Electronic stability control
- Power steering
you should have the issue checked before the MOT.
Ignoring warning lights can sometimes turn a small issue into a much larger repair bill later on.
5. Test Your Lights and Horn
It’s easy to overlook simple checks like lights and the horn, but these are all part of the MOT inspection.
Before your test, check:
- Headlights
- Brake lights
- Indicators
- Reverse lights
- Number plate lights
- Hazard lights
- Horn operation
Replacing bulbs beforehand is usually quick, inexpensive, and could help avoid a failed MOT.
Simple MOT Preparation Can Save You Money
A few basic checks before your MOT can help reduce the chances of unexpected failures and costly repairs.
You might also find these guides useful:
For more practical motoring advice, visit our maintenance guidance hub.
Final Thoughts
Preparing for an MOT doesn’t need to be complicated. Simple checks on tyres, fluids, lights, and warning indicators can make a big difference and help keep your car safe and roadworthy.
If your car fails its MOT and the repair costs no longer feel worthwhile, Jamjar can help you find out what it’s worth.
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