Checking a van before driving starts on the outside
Checking a van before driving takes five minutes and pays off every time. It doesn't only apply to a rental van. A walk around the vehicle will reveal most of the things that would otherwise stop you on the road. Always follow the same routine so you don't forget anything.
A walk around the van
Go all the way round in one direction. Look at the bodywork, bumpers, sills and mirrors. Damage you notice now is damage you won't have to deal with at the return.
Look under the vehicle. A stain where the vehicle was parked means a leaking fluid. Water from the air conditioning is fine; oil or coolant is not.
Tyres
Check the pressure, not just the appearance. An under-inflated tyre on a loaded van heats up and increases consumption. The recommended values are usually on a label in the door frame, often separately for an empty and a loaded vehicle.
Inspect the sidewall of the tyre. Cracks, bulges or cuts are serious defects. Also check the tread depth and whether the tyre is wearing only on one side.
Don't forget the spare. Check whether there's a spare wheel or a repair kit in the vehicle and whether there's a wrench and a jack with it. Searching for them by the roadside in the dark when you have a puncture isn't ideal.
Lights and visibility
Go through all the lights. Side lights, dipped headlights, brake lights, indicators and reversing lights. On a van without windows, a working reversing light is more important than on a car.
Check the wipers and washers. A smeared windscreen on a large vehicle restricts visibility more than you'd expect, because you rely mainly on the mirrors.
Clean the windscreen and mirrors. It takes a minute and makes a big difference when driving into the sun.
Fluids
Check the oil and coolant levels. Both are checked with the engine cold and the vehicle standing on level ground. The level should be between the marks, not at the lower limit.
Top up the screenwash. On a van the windscreen gets dirty faster than on a car, because you sit higher and the windscreen is large.
In winter, think about diesel and frost. Winter diesel is sold automatically in the usual months, but a vehicle that has been standing outside for a long time needs longer to warm up. Let the engine run for a moment after starting before you set off.