**'General fluid levels, such as brake fluids, can cause you to fail if they are significantly low at the time of your test.

Your MOT tester will check that the amount of fluid in the reservoirs meets the minimum level, so check it over in advance.

'**In petrol and diesel cars, drivers should start by checking the oil level, which should be done regularly to make sure that vital engine components are being effectively lubricated.

This is done by pulling out the dipstick, wiping it clean and reinserting it, before removing it once again and checking that the oil level is within the maximum and minimum markings.

Drivers should also look through the transparent bottles to see that the brake fluid and coolant levels are also adequate.