Bob's Mechanical Repairs

Camper & Motorhome Hub UK

Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email [email protected].

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Honest mechanic-written guides for UK campervan and motorhome owners. Buying advice, Scottish road-trip routes, MOT, servicing and habitation tips.

Keeping a camper reliable

Campers live the hardest life a diesel van can have: long lay-ups, short moves, heavy permanent load and weeks of standing in damp Scottish air. That combination is why campers suffer batteries, brakes, DPFs and corroded exhaust and brake lines far more than a commercial van covering the same mileage.

The fix is use and preparation. A van driven properly once a month, with a good long run to clear the DPF and charge the battery, stays healthy. A van started on the drive for ten minutes is being actively harmed.

Before the season starts

Tyre pressures at the loaded figure and tyre ages checked — camper tyres usually time-expire long before they wear out. Brakes checked for corroded discs after a winter standing. Battery tested under load, both starter and leisure. Coolant strength and oil condition checked, and habitation gas and electrics inspected by the right trade.

Then load the van as you will travel and check the plated weight. Most self-builds are heavier than the owner believes, and an overloaded camper handles badly, brakes badly and is a problem if you are stopped.

Power on the road

A loaded conversion with a roof unit is a lot to push for an engine mapped around an empty panel van. A road-tested remap adds the mid-range torque that makes hills and overtakes calm rather than frantic, while staying inside the standard clutch, turbo and cooling limits. Emissions equipment stays fitted.

Sort DPF and clutch health before any map. Both are the things a camper is hardest on, and a map finds weaknesses rather than hiding them.

Frequently asked questions

Why do campers suffer DPF problems?

Long lay-ups and short journeys mean the filter rarely gets hot enough to regenerate. Regular long runs are the cure.

Should I start the van on the drive over winter?

No — a short idle adds fuel and moisture without warming it properly. A monthly proper drive is far better.

Do camper tyres need replacing even with good tread?

Usually yes. Tyres harden and crack after six or seven years, and campers time-expire tyres long before wearing them out.

Is a remap worth it on a camper?

For a loaded conversion, yes — the mid-range torque gain is exactly what a heavy van lacks on hills.

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