Everything You Need to Know. VanMoof SX3 e-Shifter

VanMoof e-Shifter Overview

The VanMoof eShifter is an electronic gear-shifting component used in models such as the S2, X2, S3, X3, S5, and A5. It works in tandem with the bike's Smart Cartridge to manage automatic or semi-automatic gear shifts.

🔧 What Is the eShifter?

The eShifter replaces traditional mechanical gear shifting. It sends signals to an internal gear hub, allowing smooth, automatic gear changes. On newer models, it’s typically controlled through integrated handlebar buttons and works seamlessly with torque and cadence sensors.

⚠️ Common Issues

• Error 44: “Cannot find eShifter.” Possible causes:
  • Faulty eShifter
  • Damaged or loose cable between eShifter and SC
  • Faulty Smart Cartridge
• Cable Damage: Wires can be pinched or broken during improper handling of the Main Battery or SmartCartridge.
• Water Ingress: May cause corrosion or electrical shorts in connectors.

Troubleshooting Tips

1. Visually inspect the cable for disconnection or damage.
2. Test with a working e-Shifter (if available).
3. Check for errors using the VanMoof app.
4. Use a multimeter to verify continuity in the Wiring Harness (advanced).
   

Types of e-Shifters

1. Original
2. Original (Improved)
3. Redesigned

Tools needed

⚠️ Don't use any bike grease to lubricate any internal parts of the e-Shifter - it will damage the PCB.

• Allen Key 4mm. To remove 4 screws 
• Waterproof PCB protection: silicone conformal coating (e.g. URETHAN 71, 422C)
• Waterproof case seal: any rubber or silicone adhesive (e.g. T7000 glue)
• Waterproof seal for moving parts: silicone grease (e.g. Arctic Hayes)
• Gear lubrication: Teflon PTFE Lubricant Spray (e.g. Innotec Hi-Tef Oil, 3-IN-ONE® High Performance Lubricant With PTFE)
• Motor shaft gear lubrication: Lithium PTFE Lubricant (e.g. LM 47, K2 LT-43, Hagen)

Replacement parts

• Motor: FK-180SH-14180 LN567106
• Cable: Higo Z409FM, Z409FG

Schematics

• PCB
• QFN20
• Microscope PCB photos: front, back

Removing e-Shifter from the rear wheel

Please watch the following video manual:

General Steps to Open e-Shifter

1. Using a 2mm Allen key, remove the four screws of the e-Shifter.
2. Gently pry open the case using a plastic prying tool (spudger).
3. Remove the gears and gently remove the PCB (circuit board).
4. Disconnect the PCB plugs and clean the old gasket on both sides of the casing.
5. If the case is cracked: cut a piece of stainless steel mesh to bridge the crack, then use a heat source to melt the mesh into the plastic, ensuring it is fully embedded. Finally, melt additional plastic over the mesh to create a smooth, strong repair.

Good to know

• Don't overtighten the eShifter during the installation
• CCheck the positioning of the e-Shifter washer before the installation.
• Make sure the rear hub is serviced and has no issues.
• Internal lubrication must be electronic friendly.
• PCB board must be protected from water and moisture.