Honda 1.0 VTEC Turbo (wet belt)
The badge shows the lowest confidence tier on this page and the date the oldest fact was checked — the weakest link, not the best.
Timing drive
Wet belt — runs inside the engine oil
5 years or 100,000 miles, whichever comes first
Five years or 100,000 miles is the published position. Failures are reported well inside it, and cars that had Honda's 6NK recall work done restart the clock from the date of that work rather than from first registration — so the date on the recall paperwork, not the registration date, is the one to count from.
Drives the oil pump
Wet belt — runs inside the engine oil
No scheduled replacement — but that is not the same as nothing to watch for. See the known issues below.
Honda schedules nothing for the second belt separately, which is exactly the problem: it sits underneath the timing belt, in the same oil, and reaching it is most of the labour. The trade position is that it is replaced with the timing belt or the job is not worth doing. Honda's own parts catalogue supports the two-belt reading: the 1.0 petrol timing belt is sold both as a single belt and as a multi-part kit.
This is the Honda nobody expects. The brand's reputation for chains is well earned across the rest of its range, and it makes the 1.0 three-cylinder genuinely dangerous to own uninformed: it runs not one wet belt but two, a timing belt and an oil pump drive belt directly beneath it, both submerged and both degrading in the oil. Honda has already replaced belts and pulleys with countermeasure parts under recall 6NK, and where that work was done the interval restarts from the recall date — so a 2018 car serviced on its registration date may be years out. The published figure is five years or 100,000 miles; specialists work to four years or 60,000, citing failures from around 35,000. The specific thing to ask when buying: was the lower oil pump belt changed too, or only the one on top? A quote that looks cheap for this job usually means it was not.
Timing drive
Wet belt (runs in engine oil) — drives the camshafts
5 years or 100,000 miles, whichever comes firstReported
Five years or 100,000 miles is the published position. Failures are reported well inside it, and cars that had Honda's 6NK recall work done restart the clock from the date of that work rather than from first registration — so the date on the recall paperwork, not the registration date, is the one to count from.
Replaced at the same time
- Oil pump drive belt — the lower of the two, and the one most often left in place
- Belt tensioner and pulley (countermeasure parts under recall 6NK)
- Oil strainer clean and full oil-system flush
What the trade does: 4 years or 60,000 miles, whichever comes first. Specialists shorten the published figure substantially, citing failures reported between roughly 35,000 and 50,000 miles. The other point they make is procedural: a job that changes only the upper belt and leaves the oil pump belt in place has not done the work.
Attributed to UK Honda wet belt specialists. This is industry practice, not a manufacturer specification.
Wet belt (runs in engine oil) — drives the oil pump
Rated for the life of the unitReported
Honda schedules nothing for the second belt separately, which is exactly the problem: it sits underneath the timing belt, in the same oil, and reaching it is most of the labour. The trade position is that it is replaced with the timing belt or the job is not worth doing. Honda's own parts catalogue supports the two-belt reading: the 1.0 petrol timing belt is sold both as a single belt and as a multi-part kit.
Two wet belts, one above the other: the timing belt driving the camshafts, and an oil pump drive belt beneath it. Both run submerged. This engine was published on this site as chain driven until 2026-08-10 — it is not, and the correction is the reason this record exists separately from the 1.5 VTEC Turbo.
Scheduled servicing
- Regime:
- fixed
- Interval:
- Not established — Not established here. On a belt running in the oil, the oil schedule is a mechanical input to belt life rather than paperwork — confirm it from the book and do not stretch it.
- Oil specification:
- SAE 0W-20 — ACEA C2
- Oil capacity:
- approximately 3.8 litres
Known issues
- The engine carries two wet belts — the timing belt and an oil pump drive belt underneath it — and a replacement that addresses only the upper belt leaves the harder-to-reach one in place, in the same oil.
- Honda issued recall 6NK covering belt and pulley replacement with countermeasure parts on affected cars. Where that work was carried out, the next replacement interval runs from the recall date rather than from first registration.
- Failures are reported well inside the published five-year, 100,000-mile interval, commonly between about 35,000 and 50,000 miles, which is why UK specialists work to a shortened figure.
- Honda lists a genuine timing belt part specific to the 2017–2021 1.0 petrol Civic, which is a straightforward way to confirm that the car has a belt at all when an owner has been told it is chain driven.
Cars this engine is fitted to
- Honda — Civic 1.0 VTEC Turbo (2017–2022), Jazz 1.0 VTEC Turbo (2020–2022), HR-V 1.0 VTEC Turbo (2021–2022)
Questions people ask
Does the Honda 1.0 VTEC Turbo (wet belt) have a cambelt or a chain?
A wet belt: a toothed belt running inside the engine, submerged in oil. Current published interval: 5 years or 100,000 miles, whichever comes first.
Does the Honda 1.0 VTEC Turbo (wet belt) have any other belts inside the engine?
Yes — a wet belt (runs in engine oil) driving the oil pump (rated for the life of the unit). This is the detail most often missed, because a car described as having a timing chain can still carry a wet belt elsewhere in the engine.
Is the Honda 1.0 VTEC Turbo (wet belt) an interference engine?
We haven't confirmed this. Treat it as if it were an interference design until a dealer confirms otherwise.
How often does the Honda 1.0 VTEC Turbo (wet belt) need servicing?
We haven't established a published schedule for this engine. Ask a franchised dealer to quote it against your VIN.
Outstanding recalls
We don’t hold recall data and won’t pretend to — it comes from the SMMT via DVSA, and a per-vehicle check needs a VIN rather than a registration. The official checker is free: check vehicle recalls on GOV.UK. You’ll need the make and the VIN, which is on the V5C and usually visible through the base of the windscreen.
Worth doing on any used car: a recall is free to have done regardless of age or how many owners the car has had, and an outstanding one often survives a change of keeper simply because nobody forwarded the letter.
Sources
- Honda 1.0 VTEC Turbo wet belt replacement: what every Civic, Jazz and HR-V owner needs to know — TGPP Autocare
- Wet belt list: does your car have one? — Honest John
- Genuine Honda Civic 1.0 petrol timing belt 2017–2021 (061405AZG01) — Cox Motor Parts
- Genuine Honda Civic 1.0 petrol timing belt KIT 2017–2021 (061405AZG01_151405AYH01) — Cox Motor Parts
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