Vehicle Maintenance for Beginners — What Every Van Lifer Should Know
Why This Matters
Your van is your home. If it breaks down, you are not just stranded — you are homeless. Basic vehicle maintenance is not about becoming a mechanic. It is about catching problems early, knowing what is normal and what is not, and being able to handle simple issues without calling a breakdown service.
This guide covers the checks and skills that every van lifer should have. None of them require specialist tools or mechanical experience.
Weekly Checks
Engine Oil
Check the oil level every week. A van doing 500-1000 miles per week on UK roads should barely use oil between services. If it needs topping up more than 0.5L per 1000 miles, there is a problem.
How to check:
- Park on level ground
- Wait 5 minutes after turning the engine off (cold oil reads lower)
- Pull the dipstick, wipe it, reinsert fully, pull again
- Oil should be between the min and max marks
- Top up if near the min mark — use the correct grade (check your owner's manual or look for the grade stamped on the oil cap)
What to look for:
- Black, sludgy oil means it is overdue for a change
- Milky, foamy oil means coolant is leaking into the engine (head gasket failure — expensive — get it checked immediately)
- Metallic particles in the oil mean internal wear — get it diagnosed
Coolant
Check the expansion tank level when the engine is cold. The coolant should be between the min and max lines.
What to look for:
- Pink/orange staining around the cap or expansion tank means a leak
- Rust-coloured coolant means the system needs flushing
- Constantly low coolant without visible leaks may be a head gasket issue
Top tip: Keep a 1L bottle of the correct coolant in your van. Use the same colour as what is in the system (blue, pink, or green — do not mix them).
Screenwash
Refill when low. Use a concentrated screenwash that protects down to -10°C. In winter, keep a spare bottle in the van — frozen screenwash is one of those annoyances that becomes a real problem on a cold morning.
Tyres
Pressure — Check every two weeks and before any long journey. The correct pressures are in your owner's manual or on a sticker inside the driver's door frame. For a loaded campervan, use the higher figure. Under-inflated tyres wear faster, reduce fuel economy, and overheat at motorway speeds.
Tread depth — The legal minimum is 1.6mm across the central three-quarters of the tyre. Buy a tread depth gauge (£3) or use the 20p test: insert a 20p coin into the tread. If the outer band of the coin is visible, the tyre is below 1.6mm and needs replacing.
Check for damage — Look for bulges, cuts, and uneven wear on each tyre. A bulge in the sidewall means the internal structure is failing — replace immediately. Uneven wear (scalloped edges, bald centre) means the tracking or suspension is off.
Lights
Walk around the van and check all lights: headlights (main and dipped), indicators, brake lights, reverse lights, number plate lights, and fog lights. A bulb costs £5 and takes 5 minutes to replace. A broken brake light is a fixable ticket if you get stopped.
Monthly Checks
Battery Terminals
Corrosion on battery terminals causes starting problems and poor charging. Look for white or greenish powder around the terminals. Clean it off with a wire brush or a terminal cleaning tool (£5). Apply a smear of petroleum jelly (Vaseline) to the terminals to prevent recurrence.
Auxiliary Battery
If you have a leisure battery, check its voltage with a multimeter when the van has been sitting for a few hours with no charging. A healthy LiFePO4 battery should read 13.2-13.4V. A healthy lead-acid battery should read 12.6-12.8V. Below these numbers means the battery is not holding charge properly.
Belts
Check the auxiliary belt (sometimes called the serpentine belt) that runs the alternator, power steering, and air conditioning. Look for cracks, fraying, or glazing (a shiny, hard surface). If the belt is cracked, it could snap without warning. Replacements cost about £20-30 and the job takes 30 minutes on most vans.
Windscreen
Check for chips and cracks. A small chip can often be repaired for free on most insurance policies. A crack longer than 10cm in the driver's line of sight will fail the MOT. Repairing early saves you a £200+ replacement.
What the Dashboard Lights Mean
- Red oil can — Low oil pressure. Stop immediately and turn off the engine. Do not drive until the issue is resolved. This is the most serious warning light.
- Red battery — The battery is not being charged. The alternator belt may have snapped or the alternator itself has failed. You can drive for 20-30 minutes on battery power alone before the engine management system shuts things down to protect the battery. Head for a garage.
- Amber check engine — The engine management system has detected a fault. The van is usually still driveable but should be diagnosed soon. You can read the fault code with an OBD2 reader (£15-20).
- Amber tyre pressure — A tyre is losing pressure. Check all four and inflate as needed. If the light comes back on, there is a slow puncture.
- Amber traction control — The system is active (slippery road conditions). If it stays on permanently, there is a fault.
- Red brake warning — Either the handbrake is on (check) or the brake fluid level is low (check the reservoir). Low fluid usually means worn brake pads.
Essential Toolkit
Keep these in the van at all times:
- Tyre inflator — 12V plug-in. A cheap one (£15) works but a digital one with a pressure cut-off (£30) is better.
- Tyre repair kit — Plug-style repair kit for punctures. Temporary fix only — get the tyre professionally repaired as soon as possible.
- Jump leads or a portable jump starter (the latter is better — you can use it without another vehicle).
- Multimeter — For checking battery voltage, fuses, and basic electrical diagnostics. A £10 one from Halfords is fine.
- OBD2 code reader — Plug it into the diagnostic port (usually under the dashboard on the driver's side) to read engine fault codes. The FIXD or similar readers are about £20 and tell you what is wrong in plain English.
- Basic socket set — 8mm to 19mm. A socket set with a ratchet, extension bar, and a set of combination spanners covers almost everything on a van.
- Screwdrivers — Flathead and Phillips in multiple sizes.
- Fuses — A mixed pack of standard blade fuses. A blown fuse can stop your headlights, indicators, or dash from working.
- Duct tape and zip ties — Not permanent fixes, but they will get you to a garage.
- Torque wrench — For tightening wheel nuts to the correct specification. Over-tightening with a breaker bar can warp brake discs.
When to Call a Professional
These jobs are worth paying for:
- Cambelt replacement (every 5-6 years or 100,000 miles)
- Clutch replacement
- Brake disc and pad replacement (pads are easy, discs require more specialised tools)
- Air conditioning service
- Diesel particulate filter (DPF) issues
- Anything involving the timing chain
Service Intervals
Most modern vans need servicing every 12 months or 12,000 miles. A full service includes oil and filter change, air filter, fuel filter, and a general inspection. An interim service (oil and filter only) at 6 months is good practice for high-mileage vans.
Keep a service log book. A campervan with full service history sells for significantly more than one without.
MOT
Vans over 3 years old need an annual MOT test. Find a reputable MOT centre, not the cheapest one. A properly done MOT catches problems early. An MOT fail is not the end of the world — most failures are for bulbs, tyres, or suspension components that cost under £200 to fix.
Book your MOT at least 2 weeks before the current certificate expires. If it fails, you have time to address the issues while the old certificate is still valid.
The Bottom Line
You do not need to be a mechanic to maintain a van. The weekly checks (oil, coolant, tyres, lights) take 10 minutes and prevent 90% of common breakdowns. The toolkit costs about £100 total and covers most roadside issues.
If something goes wrong and you are not sure, call a mobile mechanic or your breakdown cover. The intelligence is knowing when to fix it yourself and when to call someone else.
My recommendation: Buy an OBD2 reader and learn to use it. The £20 investment has saved me from two unnecessary garage visits — one for a loose fuel cap that triggered a check engine light, and one for a faulty glow plug that was fixed in 15 minutes instead of a full diagnostic fee.
