The Ford Transit Custom is the most common base vehicle for UK campervan conversions. Walk into any campsite and you'll see more Transit Customs than any other van. There's a reason for that — but there are also trade-offs that most reviews gloss over.
This is an honest assessment based on what UK van builders actually report after living with this van, not a spec sheet from Ford's marketing department.
Verdict
The Transit Custom is the right van for most UK builders because it balances cost, size, drivability, and parts availability better than any competitor. The rust is a real problem but a manageable one if you buy carefully and treat it early.
For a full-time live-in build, the L2H2 EcoBlue 170 is the one to get. For a weekender or budget build, a 2016-2018 L2H2 130 is a better buy and leaves you £5k more for the conversion.
The Good
Driving Experience
The Transit Custom drives more like a large car than a commercial van. The steering is light, the turning circle is tight (11.5m), and the cab ergonomics are better than any competitor. The seats are comfortable for 6+ hour days on the A9. The gearshift is precise — not notchy like the Ducato's.
The 2.0-litre EcoBlue diesel (130hp or 170hp) is refined and quiet at motorway speeds. At 70mph, the engine is doing around 2,200rpm, which makes for relaxed cruising. The 170hp version genuinely hustles — you'll keep up with traffic on Alpine passes without wringing its neck.
Fuel Economy
Real-world MPG (from UK van lifers on the Transit Custom forum):
- Mixed driving: 34-38mpg
- Motorway: 36-40mpg
- Town: 28-32mpg
- Towing a trailer: 24-28mpg
That's better than a Ducato (30-34mpg) and similar to a VW Transporter (35-38mpg). The 80-litre fuel tank gives you a real-world range of about 600 miles.
Dimensions
The L2H2 (long wheelbase, high roof) is the sweet spot for campervan conversions:
- Length: 5.4m (L2) — fits in a standard UK parking space
- Width: 1.98m (without mirrors) — narrow enough for single-track roads
- Internal height: 1.76m (H2) — most people can stand upright
- Payload: 1,000-1,200kg depending on spec — enough for a full conversion
The L1 (5.0m) is too short for a layout with a permanent bed. The H3 (2.0m internal) is available on the L2 but limits your height barrier options.
Parts and Servicing
Ford's UK dealer network is everywhere. Any town with a branch of Halfords has a Ford-trained mechanic. Parts are cheaper than Mercedes (Sprinter) and VW (Transporter) and more available than Fiat (Ducato). A cambelt change costs £400-500 at an independent. Full service is £200-300.
The Bad
Rust
This is the elephant in the room. Transit Customs rust. The rear wheel arches, the sill seams, the door bottoms, and the floor pan are all vulnerable. Ford improved the rust warranty to 12 years on 2020+ models, but earlier vans (2013-2019) are notorious.
On a 2016-2019 van, check:
- Rear wheel arches — look for bubbling paint on the inside edge
- Sills — especially where the sliding door runner mounts
- Floor pan — under the rubber mat in the cab area
- Rear door apertures — the seam around the hinge area
- Roof gutter — the seam where the roof panel meets the side panel
A rusty Transit Custom is not something you want to convert. The rust often starts from the inside out (Ford didn't galvanise the internal panels), so what looks like a bubble on fresh paint can mean a hole underneath.
If you buy a Transit Custom for conversion, budget £500-1,000 for rust treatment on any van older than 2018.
The DPF and AdBlue System
The 2.0 EcoBlue engine has a diesel particulate filter (DPF) that requires regular motorway runs to regenerate. If you spend most of your time on B-roads and campsites, the DPF will clog. A forced regeneration at a dealer costs £150-250.
The AdBlue system is also temperamental. The AdBlue injector nozzle crystallises if the van is left sitting for 2+ weeks (common for winter van storage). Replacement is £300-400.
Workaround: Drive at 60mph+ for 20 minutes once a week. If you park up for a month in winter, consider having the DPF regeneration done before storage.
Weight Distribution
The Transit Custom is front-heavy (engine, gearbox, driver, passenger all over the front wheels). When you add a full conversion (plywood, insulation, kitchen unit, batteries) to the rear, the front axle can become light. This affects steering feel and traction on wet grass.
What to do: Weigh the van before and after your conversion. The rear axle should carry at least 40% of the total weight. If the front feels light (wandering on motorways), add weight to the rear garage area.
The Alternatives
VW Transporter T6.1
The Transporter is better built (no rust issues), holds its value better, and drives more like a car. But it's smaller (internal height 1.5m in standard roof), narrower, and significantly more expensive. A 2018 Transporter costs £25-30k; a 2018 Transit Custom is £15-20k.
Mercedes Sprinter (MWB)
The Sprinter has more internal space (wider and taller), better payload, and legendary longevity (500k miles is normal). But it's rubbish on UK single-track roads (2.2m+ wide), more expensive to insure, and parts cost 40% more than Ford.
Fiat Ducato / Peugeot Boxer / Citroen Relay
These share the same platform. The Ducato is the widest option (2.05m internal width) and has the best payload. But the driving position is worse (pedals offset), the gearbox is notchy, and build quality across all three brands is inconsistent. They rust worse than the Transit Custom.
Which Transit Custom to Buy
| Model | Year | Price | Verdict |
|---|---|---|---|
| L1H1 | 2013-2016 | £8-12k | Too small for a proper conversion |
| L2H2 | 2016-2019 | £12-18k | Best value, check for rust |
| L2H2 | 2020-2023 | £18-25k | Better rust protection, AdBlue issues |
| L2H3 | 2016-2023 | £15-25k | Rare, 2.0m internal height |
| Sport | 2016-2023 | £18-28k | Stiffer suspension, not ideal for conversion |
The sweet spot: A 2019 L2H2 Limited with full service history and no visible rust. Budget £15-17k for the van, £1k for rust-proofing, and you have a solid base for a 10-year build.
