If you are considering buying a used Ford Transit, there are several major reliability issues worth knowing about first. Our garage database tracks 2 known faults for this model, 2 of them rated high severity. Every one below is a repair bill a seller has good reason not to mention.
Are you about to buy a lemon?
Sellers rarely admit these faults outright. Our database tracks 8 specific phrases sellers use in adverts to soft-pedal these exact issues. Paste any Ford Transit advert and we will check it in seconds.
Inner and outer sills rot from the inside out: the sliding door's lower channel drains water straight into the inner sill, so the spot-welded seam between inner and outer sill corrodes where it cannot be seen. The cab steps rot unseen beneath their plastic step liners, and rust also breaks out where the driver's door shuts against the striker. Sill corrosion is structural and a common Transit MOT failure.
Rough guide
£300-1500
Typical symptoms
bubbling along the sill seam or the edges of the cab steps
crusty metal or rust flakes under the plastic step liners
rust bloom around the driver's door striker plate
corrosion advisories in the MOT history
Affected vehicles
Engines:
All
Typically appears:
8-15 years
🔍 We have a specific pre-purchase check for this faultCheck an advert →
Bodywork/ChassisHigh severity💬 Owner reports
Rot in the rear inner wheel tubs and floor, and in the chassis rails at the reinforced bump-stop and spring-hanger sections, where trapped mud and damaged underseal hold salt against the metal. The front wings also corrode behind factory sponge sound-deadening pads that trap moisture. Spring hangers and chassis rails are load-bearing, so perforation here is an MOT structural failure.
Rough guide
£400-2000
Typical symptoms
flaking rust on the chassis rails around the rear spring hangers
bubbling on the lower front parts of the rear arches
rust staining on the front wings with no stone-chip damage
welded patches or thick fresh underseal on the rails
Affected vehicles
Engines:
All
Typically appears:
8-15 years
🔍 We have a specific pre-purchase check for this faultCheck an advert →
Ford Transit service intervals: cambelt, chain and gearbox oil
An overdue cambelt is the most expensive thing a seller can fail to mention on a used Transit. These are the figures UK specialists work to.
Timing chainChain
Mk6, Mk7, 2.2 TDCI
No fixed replacement interval
The traditional Ford Transit 2.2 TDCi uses a timing chain with no fixed replacement interval, and chains commonly exceed 300,000 miles. The failure pattern is tensioner and guide wear from poor oil servicing, so listen for a cold start rattle; trade guidance is to inspect from around 10 years old.
Timing belt (cambelt)Wet belt
Mk8, 2.0 ECOBLUE
100,000 miles or 6 years, whichever comes first
Ford revised the 2.0 EcoBlue wet belt (belt-in-oil) interval down from 10 years / 150,000 miles to 6 years / 100,000 miles across Transit, Transit Custom and Tourneo, because fuel dilution of the oil during DPF regeneration degrades the belt early. This is an interference engine: failure bends valves and cracks pistons, with typical repair bills of GBP 4,000-7,000 or more. Independent specialists advise changing by 60,000-80,000 miles.
Always confirm against the vehicle handbook. Intervals vary by engine, and several manufacturers revised theirs after failures in service.
Repair costs are typical UK ranges, not quotes. Actual cost depends on condition and garage.Data last verified: August 2026
Where this Ford Transit fault data comes from
If you used to check the Honest John “Good & Bad” section before the site closed in 2026, this page is where that information now lives. We rebuilt the Ford Transit owner-report history from the archived Honest John dataset, added our own research, specialist and owner-club sources and DVSA recall data, and we keep it free. Each fault above is badged with its source. The same data feeds our free advert check, which reads a listing against every known fault for the exact engine and year.
Knowing what a Ford Transit goes wrong with is half of it. The rest is reading the advert and checking the car's history before you hand any money over.