Don Ball Mechanical Repairs owner Mark Jacobs said drivers need to be aware of the potential road dangers if they don't get an eSafety check or pink slip.

"The inspection checks the vehicle to make sure it is roadworthy," he said.

"We check the suspension, wheels, types, lights, make sure there's no cracks on the windows and no oil or exhaust leaks."

According to Mr Jacobs, on average he services 45 cars a week to have their pink slips checked.

He added it takes between 25 to 30 minutes to undertake a safety inspection.

"If a car fails the first inspection, it is not put off the road but the motorist has 14 days to rectify the problem," he said.

"The driver should then take it back to the same mechanical shop to have a second inspection which is free.

"Most vehicles that are more than 5 years old will require an eSafety check before they can be registered in NSW."

Mr Ball also said people are putting their lives at risk if they follow online operators who approve pink slips without proper check.

"You wouldn't buy a house without an inspection and without a proper vehicle safety check people are taking their life in their own hands," he said.

"If the vehicle causes an accident without being properly checked, it could be dangerous for the the driver, car and other motorists."

Minister for Regional Roads Paul Toole said an owner could also be charged and fined with driving an unregistered, uninsured and defective vehicle.

"People need to know they could also be committing a criminal offence, in trying to register the vehicle with false documents, it's not only dangerous it could land you in serious trouble," he said.

"A genuine pink slip for a car has a set fee of $42 and people offering dodgy pink slips will often advertise much higher prices, for effectively no service.

"Businesses who are offering to provide a pink slip without an inspection are committing a serious criminal offence which could lead to significant fines and jail time."