33 Errors to Avoid with Your Motorhome
Every motorhome journey is a learning experience, but some lessons are more expensive than others. To help you avoid common pitfalls and keep your travels stress-free, here is a detailed breakdown of 33 errors that every owner should keep on their radar.
Pre-Departure & Legal Safety
Exceeding the Maximum Payload: One of the most common legal errors is overpacking. Your motorhome has a Maximum Technically Permissible Laden Mass (MTPLM), which includes passengers, water, fuel, and gear. Exceeding this limit is not only illegal and voids your insurance, but it also puts immense strain on your suspension and significantly increases your stopping distance.
Improper Weight Distribution: It isn’t just about how much you carry, but where you put it. Heavy items (like canned goods or tools) should be stored as low as possible and preferably over the axles. Storing heavy gear in high lockers raises the center of gravity, making the vehicle unstable in high winds or during emergency maneuvers.
Driving with Expired Documentation: Before any trip, double-check that your MOT, road tax, and insurance are valid for the duration of your travels. If you are heading abroad, ensure you have your V5C logbook, a valid Green Card if required, and that your breakdown cover includes European recovery for a vehicle of your specific size and weight.
Neglecting Tire Condition: Motorhome tires often look perfect because they have plenty of tread, but they "age out" before they "wear out." Check for "crazing" or small cracks in the sidewalls caused by UV exposure. Most experts recommend replacing tires every five to seven years, regardless of how much tread is left.
Incorrect Tire Pressures: Running on the wrong pressure affects fuel economy and handling. Under-inflated tires generate excessive heat, which is the leading cause of high-speed blowouts. Always use a reliable gauge to check pressures while the tires are cold, as heat from driving will give a false high reading.
Interior & Technical Readiness
Leaving Roof Vents Open: It is easy to forget a small bathroom vent, but at 60mph, the wind creates a vacuum effect that can rip a plastic vent cover right off the hinges. Always do a "eyes on" check of every vent before turning the key.
Forgetting to Turn Off the Control Panel: While some modern vans integrate this with the engine, many require you to manually switch off the 12V habitation power. Leaving it on can cause unnecessary drain or, in some cases, interfere with the vehicle's electrical charging system while driving.
Traveling with the Gas On: Unless your vehicle is fitted with a specialized "drive-safe" regulator (like a Truma MonoControl with a crash sensor), your gas cylinders must be turned off at the bottle valve before you move. In the event of a collision, an open gas line is a massive fire risk.
Leaving the Step Deployed: Whether it is manual or electric, driving off with the step out is a recipe for disaster. It can strike curbs, bollards, or even pedestrians. Most vans have a warning buzzer; if yours doesn't, make it the last thing you check during your walk-around.
Loose Window Catches: Motorhome windows are designed to be lightweight. If a catch is left in the "vent" position (slightly open) rather than fully locked, the wind can get underneath the acrylic pane and shatter it or tear it away from the frame.
Unsecured Skylights: Much like roof vents, large panoramic skylights are expensive to replace. Ensure they are cranked down tight and the locking mechanism is engaged. A partially open skylight can create an incredibly loud whistling noise or, worse, catch the wind and flip backward.
Failing to Lock the Fridge Door: Most motorhome fridges have a "travel catch." If you don't engage it, the weight of the milk and food inside will force the door open on the first sharp corner, spilling the contents across your floor.
Unlatched Internal Cupboards: Overloaded lockers can burst open during transit. Ensure you hear the "click" of the push-locks on every cupboard. Items falling from height can distract the driver or damage the kitchen worktops below.
Unsecured Tables: If your dining table is a free-standing model or a stow-away type, ensure it is securely lashed down. In a sudden emergency stop, a heavy wooden table becomes a dangerous projectile.
Leaving the TV Aerial or Satellite Dish Up: This is perhaps the most classic motorhome mistake. It only takes one low-hanging tree branch or a low bridge to snap off an extended aerial, leading to expensive roof repairs and a lack of entertainment for the rest of the trip.
External Checks & Utilities
Neglecting Bike Rack Security: Bicycles can shift during transit. Always double-check the tension of the wheel straps and the frame clamps. It is also wise to use a secondary high-quality lock to secure the bikes to the rack itself for both safety and theft prevention.
Dragging the Electric Hook-Up (EHU) Cable: Never rely on memory. Physically walk to the side of the van and ensure the cable is unplugged, coiled, and stowed. Driving off while plugged in can rip the socket right out of the side of your motorhome.
Losing the Water Filler Cap: It is a common habit to rest the water cap on the rear bumper while filling the tank. If you forget it, you’ll likely lose it on the road. Consider attaching a small plastic lanyard to the cap so it can’t be left behind.
Leaving the Waste Tap Open: It is tempting to leave the grey waste tap "slightly cracked" to drain as you go, but this is poor etiquette and can be illegal. Ensure the valve is fully shut so you aren't leaving a trail of soapy water (and smells) behind you.
Forgetting to Adjust Mirrors: If you share the driving, always re-adjust the mirrors for the new driver. Because motorhomes are significantly wider than the cab, your blind spots are much larger than in a car. Ensure you can see the entire side of the van in the wide-angle section of the mirror.
On-the-Road Awareness
Ignoring Height and Width Restrictions: You cannot "squeeze through" in a motorhome. Know your vehicle’s height in both metric and imperial units and display it on a sticker on your dashboard. This prevents "bridge-strike" incidents that can result in a total loss of the vehicle.
Using a Standard Car Sat-Nav: A standard GPS doesn't know you are 2.3 meters wide and 3 meters tall. It may send you down a narrow "goat track" or under a low railway bridge. Invest in a dedicated motorhome Sat-Nav that allows you to input your specific dimensions.
Misjudging Tail-Swing: On many motorhomes, there is a significant distance between the rear wheels and the back bumper (the "overhang"). When you turn sharply, the back of the van swings out in the opposite direction. Be extremely mindful of this when pulling away from petrol pumps or parked cars.
Underestimating Braking Distances: A fully laden motorhome can weigh 3,500kg or more. You cannot "anchor on" the brakes like you do in a hatchback. Maintain a much larger gap between you and the vehicle in front, especially in wet or greasy road conditions.
On-Site Etiquette & Operation
Parking on an Uneven Surface: Being level isn't just about your comfort while sleeping. Most motorhome fridges use absorption technology, which requires the unit to be relatively level to circulate the coolant. If you are parked at a steep angle, your fridge may stop cooling entirely.
Ignoring Pitching Distances: Always follow the site’s guidelines for "spacing." In the UK, the standard is often 6 meters between vehicles. This is a vital fire safety regulation designed to prevent a fire from spreading from one van to the next.
Leaving the Awning Out Unattended: An awning is effectively a giant sail. A sudden gust of wind can catch it and flip it over the roof of the van, causing massive structural damage to the side panels. Never leave it out overnight or when you leave the site.
Skipping Security Protocols: It is easy to feel safe on a quiet campsite, but theft can happen anywhere. Always use your steering locks, wheel clamps, and engage your alarm even if you are only heading to the site shop for five minutes.
Using the Wrong Disposal Points: Never empty your toilet cassette into a standard rainwater drain. Only use the designated Chemical Disposal Point (CDP) or "Elsan" point. These are plumbed into septic tanks or mains sewers designed to handle the chemicals.
Dumping Grey Water on the Pitch: Even if your "grey" water is just dishwater, it contains food particles that rot and attract vermin. Always use the proper drive-over grid at the service point to keep the site clean for the next guest.
Maintenance & Storage
Neglecting Safety Alarms: A motorhome is a small, enclosed space. Test your smoke and Carbon Monoxide (CO) alarms before every trip. Check the expiry date on the back of the units, as the sensors inside degrade over time (usually every 5-7 years).
Failing to Winterize: If you don't use your van in the winter, you must drain the entire water system, including the boiler. Water expands when it freezes; a forgotten liter of water in the heater can lead to a burst tank and a repair bill in the thousands.
Allowing the Leisure Battery to Go Flat: Leisure batteries do not like being left in a discharged state. If the voltage drops too low, "sulfation" occurs, which permanently kills the battery's ability to hold a charge. If storing the van, use a trickle charger or a solar maintainer to keep the battery topped up.
Mastering these 33 points is about more than just avoiding a repair bill; it is about ensuring that every journey is as safe and stress-free as possible. While most of us have fallen foul of at least one of these errors during our time on the road, staying diligent with your pre-travel checks and on-site habits allows you to focus on what really matters—the adventure ahead.
The best way to learn is through shared experience, so I’d love to hear from you. Have you ever had a "lesson learned" moment on the road, or is there a tip I missed? Leave a comment below and let’s help each other stay safe. For more tips, videos, and updates from the road, make sure to follow me on Instagram (@johnnyburr3), subscribe to the Johnny Burr YouTube channel, or join the conversation in our Motorhome Touring Facebook groups and Discord server. Safe travels, and I'll see you at the next pitch!















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