FIRST T4:
WHAT TO CHECK.

Create a Baseline

The aim of the first week is not to rebuild the van. It is to establish what you know, what you do not know and what needs attention first.

• Record the current mileage.
• Download or save the MOT history.
• Gather service invoices, timing-belt evidence and previous repair records.
• Write down engine code, tyre sizes and useful part/specification information for your van.
• Make a list of known faults and advisories instead of relying on memory.

Check the Basic Fluids

Haynes places regular fluid checks among the most frequent T4 maintenance tasks. Start by establishing the condition and level of the basics using the correct procedure for your engine and model.

• Engine oil level and obvious leaks.
• Coolant level, appearance and signs of leakage.
• Brake/clutch fluid level.
• Power-steering fluid level where applicable.
• Screenwash level and washer operation.

Decide Whether to Service It

If the service history is clear and recent, there may be little to do. If the history is vague, many owners choose to establish their own baseline with an oil/filter service and inspection rather than trying to decode somebody else’s definition of “recently serviced”.

• Confirm the correct oil specification for the exact engine before purchasing oil.
• Check when the oil and filter were last changed.
• Check fuel-filter history.
• Inspect the air filter and pollen filter where fitted.
• Check service records against the vehicle’s mileage and use.

Haynes notes that service intervals vary by engine and model year, so use the correct schedule for the specific van rather than applying one internet number to every T4 ever built.

Timing Belt & Auxiliary Belts

Timing-belt history matters because failure can be extremely expensive. Haynes includes belt inspection and renewal in the T4 maintenance schedule, with requirements varying by engine and mileage.

• Look for an invoice or dated record rather than relying on a marker-pen note alone.
• Confirm what was replaced, not just that “the belt was done”.
• Check auxiliary-belt condition and listen for abnormal belt/tensioner noise.
• On engines with additional drive belts, confirm their history as well.

Tyres, Wheels & Pressures

• Check all four tyres and the spare where fitted.
• Inspect tread, sidewalls, cracking, bulges and uneven wear.
• Confirm tyre pressures using the appropriate vehicle information.
• Check that tyre size, load capability and wheel fitment are suitable for the van.
• Inspect wheel bolts and look for damaged or badly corroded wheels.

Uneven tyre wear can point to alignment, steering or suspension problems, so do not just replace the rubber and ignore why it wore that way.

Brakes, Steering & Suspension

Use the MOT history as a clue, but remember that an MOT is a minimum roadworthiness check at one point in time, not a permanent certificate of mechanical perfection.

• Check visible brake-pad/disc condition where practical.
• Test the handbrake operation.
• Listen for knocks or clunks over uneven roads.
• Check for steering play, pulling or unusual noises.
• Inspect driveshaft/CV gaiters and suspension components if you are competent to do so.

Battery & Charging

Haynes recommends checking battery security and terminal condition as part of regular T4 maintenance.

• Make sure the starter battery is secured properly.
• Check terminals for looseness and obvious corrosion.
• Check that the van starts consistently.
• If you have unexplained flat batteries, test the charging system and investigate parasitic drains.
• If it is a camper, identify the leisure battery, charger, split-charge/DC-DC system and main fuses.

Lights, Wipers & Everyday Equipment

Haynes’ T4 regular-check guidance includes lights, switches, washers and wiper condition. Ten minutes here can prevent surprisingly irritating failures later.

• Headlights: dipped and main beam.
• Indicators and hazard lights.
• Brake, tail, fog and reversing lights.
• Horn.
• Wipers and washer jets.
• Heater fan and demisting.
• Dashboard gauges and warning lamps.

Look for Leaks Twice

Inspect the van before and after a decent drive. Some leaks only become obvious when fluids are warm and systems are under pressure.

• Oil around the engine and underneath.
• Coolant staining, damp hoses or expansion-tank issues.
• Power-steering fluid leaks.
• Fuel leaks or strong fuel smells.
• Water ingress around windscreen, door seals and camper windows.

Recheck Rust & the Underside

Even if you inspected the van before buying it, look again once the excitement has worn off and daylight has returned.

• Windscreen/scuttle area.
• Wheel arches and sills.
• Sliding-door lower edge and rail area.
• Fuel-filler area.
• Rear crossmember and spring areas.
• Floor, chassis and previous welded repairs.

If It’s a Camper

Identify how the conversion works before relying on it on a trip.

• Locate the leisure battery and main fuses.
• Understand how the leisure battery is charged.
• Check shore-power equipment and RCD/protection where fitted.
• Check gas equipment and professional inspection history where applicable.
• Test water pump, fridge, heater and other installed equipment.
• Look for damp or water ingress.
• Check pop-top/high-top catches, seals and fabric.

Take a Proper Baseline Drive

• Note cold-start behaviour.
• Check temperature remains stable.
• Use every gear and assess the clutch.
• Listen for suspension, wheel-bearing and driveline noises.
• Test braking and steering behaviour safely.
• Recheck fluid levels and the ground underneath afterwards.

Make Three Lists

1. Safety / urgent

Brakes, tyres, steering, structural corrosion, serious leaks, unsafe electrical/gas work.

2. Service / reliability

Fluids, filters, belts, cooling-system issues, battery/charging, worn suspension components.

3. Improvements

Wheels, stereo, curtains, suspension drops and every other item that seemed absolutely essential approximately twelve minutes after buying the van.

Quick New-Owner Checklist

• MOT and service history saved
• Current mileage recorded
• Oil and coolant checked
• Brake/clutch and steering fluids checked
• Timing-belt history established
• Tyres and pressures checked
• Brakes/steering/suspension assessed
• Battery and charging checked
• All lights and wipers tested
• Leaks checked before and after driving
• Rust/underside photographed
• Camper systems understood where fitted
• Urgent work list created
• Service/reliability list created
• Modification shopping temporarily restrained