Before the Gritters Come: A Half-Hour Winter Once-Over for Your Work Van

The first hard frost of the season has a habit of arriving on the morning you cannot afford to be late. For a work van, winter is not just about cold starts. It is short stop-start journeys, damp tools chucked in the back, and a battery that never quite gets the charge it wants. None of that is dramatic until the key turns and nothing useful happens.

A full service is one thing. This is different. Think of it as a triage: half an hour on a dry Sunday afternoon, in daylight, with a torch and a pair of gloves. You are looking for the handful of things that actually cause cold-morning misery, and separating the jobs you can sort yourself from the ones that need a ramp and a proper diagnosis.

Start With the Battery, Because It Starts Everything Else

Open the bonnet and look at the battery before you touch anything else. Check the terminals for the white-green fuzz of corrosion; a brush and a dab of petroleum jelly will sort light contamination, but heavy crust usually means it has been brewing for a while. Look for a date code on the casing. A battery that is five or six years old and has spent its life doing school-run-length trips is living on borrowed time.

If you own a multimeter, a rested reading of around 12.4 volts or above is a reasonable sign. Mid-12s is worth watching. Anything hovering near 12.2 volts, or dropping sharply while the engine cranks, is telling you something. A slow, lazy starter is not a personality quirk. It is a warning.

Short winter journeys are the enemy here. A van that does ten minutes of stop-start work all day never gets the alternator working long enough to replace what the starter motor borrowed. If your routine is mostly local, a smart charger used once a fortnight will do more for reliability than any additive. If the battery fails a proper test, replace it before the first serious freeze rather than after the first recovery truck.

Fluids: The Quiet Checks That Save Engines

Coolant is the one people forget because it is out of sight and out of mind. Check the expansion tank when the engine is stone cold. The level should sit between the marks, and the mix should be the right strength for the weather. Topping up with neat water is fine in an emergency, but it dilutes the mix and raises the freezing point. If you are unsure what is in there, a garage can test it in seconds.

While you are under the bonnet, check the oil. Not just the level, but the colour. Black and thin after a hard season is normal on a diesel, but milky residue or a sudden drop deserves attention. The washer bottle matters too. Proper winter screen wash, mixed at the strength on the bottle, is not a luxury. Plain water freezes on the jets and turns a clear screen into a guessing game.

Lights, Wipers and the Visibility Audit

Walk around the van with someone helping, or use a wall to check reflections. Headlights, tail lights, indicators, hazards, fog lights and number-plate lamps all need to work. Cloudy headlight lenses are an easy thing to ignore and a surprisingly effective way to make a dark morning feel darker.

Wiper blades are cheap and underrated. If they smear, chatter or leave a strip of unwiped screen, replace them before the gritting season starts. Check the washer jets are aimed properly. A weak jet that lands halfway up the screen is useless when a lorry throws salt across your windscreen on a dual carriageway.

Door Seals and the Damp That Eats Your Load Bay

Run a finger around the door and tailgate seals. Look for perishing, splits and grit trapped in the rubber. A seal that lets in a trickle of water will soak the ply lining, and damp ply holds moisture long after the leak has stopped. That is how you end up with condensation on the inside of the roof every morning and tools that never quite dry out.

Check the load area for blocked vents, loose roof bars and any sign of water tracking down the panels. If the van has been carrying wet gear, empty it out and let it air on a dry day. A moisture absorber can help, but it is not a substitute for finding the leak. Silicone spray on the door rubbers helps stop them sticking in freezing weather, which is a small thing until the day you need to get in quickly.

Tyres, Pressures and the Spare You May Not Have

The legal tread limit is 1.6mm, but winter grip starts fading well before that. If the tyres are close to 3mm, think hard about replacing them before the cold arrives, especially on a loaded van. Check pressures when the tyres are cold and remember that a fully loaded work van often needs different pressures to an empty one. Look for cuts, bulges and screws picked up on site.

Many modern vans do not carry a spare. If yours has a sealant kit, check its expiry date. A can that went out of date two winters ago is just extra weight.

The Kit That Earns Its Space

A jump pack, a decent torch, gloves, a scraper, de-icer, a hi-vis vest, a warning triangle and a phone charger are the basics. In winter, a blanket and a bottle of water are sensible too. Keep it all secured, not rattling around the load bay. And check the payload maths: a tidy kit is useful, but it still counts against the weight you can legally carry.

When to Stop Fiddling and Book It In

If the battery fails a proper test, the coolant is disappearing, the heater blower sounds like a nest of bees, or warning lights are staying on, stop there. A local independent garage can carry out a winter check before the December rush. Book it now rather than in the week the gritters finally arrive, when every workshop in the country is trying to fit in the same jobs.

The half-hour routine is not a replacement for servicing. It is the difference between catching a tired battery in November and discovering it on a dark January morning with a van full of tools and a customer waiting. Do it once now, then again after the worst of the weather. Your future self will thank you.