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VanMoof error 0-15: Battery protection active (BMS cut-off)

VanMoof S3 / X3 (also S5 / A5 where applicable)Dealer neededDo not keep riding

Errors 0 to 15 all come from the battery management system (BMS) inside the frame-integrated battery. The BMS has tripped one of its protections: cell over- or under-voltage, over-current, short circuit, or a temperature limit. Until the BMS releases the lock the bike has no assist and often will not wake up at all.

Likely causes

Battery drained far below its cut-off (bike stored empty for weeks or months)
One cell group drifted out of balance so the BMS sees an over- or under-voltage on a single group
Charging or riding at very low or very high temperatures (below 0 C or in direct summer heat)
Over-current spike from a motor or controller fault pulling more amps than the BMS allows
Moisture or corrosion on the battery connector inside the down tube
Ageing pack (2020 to 2021 S3/X3 packs are now 4 to 6 years old) with a failing cell group

How to fix VanMoof error 0-15

Plug in the original VanMoof charger and leave it for at least 2 to 4 hours, even if the LED does not react at first; a deeply discharged pack sometimes wakes up
Let the bike sit at room temperature for an hour if it was very cold or very hot, then try charging again
Do a hard reset: hold the power button on the top tube for about 10 to 15 seconds until the matrix display goes dark, release, and switch on again
Check the app for a pending firmware update and install it with the bike next to the phone and the charger connected
If the code is 0, 1, 2 or 3 (voltage) and the pack still will not charge after a full night, stop trying; repeated forced charging can damage cells further
Take the bike to an independent VanMoof-capable shop: they can read the BMS log, balance or reset the pack, or replace cell groups or the whole battery

Go to a dealer if: Go to a shop if the bike does not wake up after a full night on the original charger, or if the code returns within a few rides.
Warranty: Batteries on pre-bankruptcy bikes are out of warranty in practice; only bikes bought from the relaunched VanMoof carry a current warranty, so budget for a paid repair.
Typical cost: A BMS reset or diagnosis is roughly EUR 50-120; cell repair or a refurbished S3/X3 battery runs EUR 350-700, a new pack (when available) around EUR 700-900.

Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.

Frequently asked

Which battery error is the worst?

Voltage errors after a long empty storage are the most common and often recoverable with patient charging; temperature and short-circuit errors that keep coming back usually mean cell damage.

Can I replace the VanMoof S3 battery myself?

The pack sits inside the down tube and is bolted and wired in; it is doable with tools but you also need a shop to pair or reset the BMS, so most owners let a workshop do it.

Will a third-party battery fix errors 0-15?

Only if it is a compatible pack that talks to the VanMoof BMS protocol; generic packs do not, and a shop can advise what actually works on your frame version.

Related VanMoof codes

16 · Battery defect or connection problem 18 · Battery does not switch on 20 · Sudden battery shutdown

Not an official VanMoof document. Compiled from workshop experience and public service information; details can differ per system version and bike brand.