Replace controller

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In this guide, we will show you step by step how to replace the controller (electronics) on your VMAX e-scooter yourself.

Model VX2 Hub / VX2 Gear
Time required approx. 30-45 minutes
Difficulty level Advanced

Tools required

  • 2.5 mm Allen key
  • 3 mm Allen key
  • Spare part: Controller / electronics
  • Optional: Spray adhesive or suitable adhesive for the rubber deck
Before starting, make sure that your VMAX e-scooter is switched off and no charger is connected.

Instructions

1

Removing the rubber deck

Rubberdeck vom Trittbrett entfernen

First carefully remove the rubber deck from the footboard so that you have access to the service flap.

Work slowly so that the rubber deck is not damaged.

2

Opening the service flap

Serviceklappe am Trittbrett öffnen

Remove all six 2.5 mm Allen screws and then open the service flap in the footboard.

3

Disconnect electrical connections

Kabelverbindungen zum Controller trennen

First disconnect the cable from the electronics to the battery.

Then carefully pull the plugs of the wiring harness apart.

Tip:
Take a photo of the wiring before disconnecting the cables. This way you can see exactly which plug belongs in which position when reassembling.

4

Disconnect other cable connections

Blinker- und Ladebuchsenkabel trennen

Remove the side covers of the footrest and disconnect the left and right blinker cables and the charging socket.

Carefully pull the blinker cables out towards the front.

Then loosen the rear cover on the right-hand side of the vehicle using a 3 mm Allen key.

Disconnect the motor cable and carefully pull it out towards the electronics.

5

Removing the controller

Controller im Trittbrett lösen

Loosen the two nuts on the side of the electronics that secure the controller.

Then carefully remove the controller from the housing.

6

Insert new controller

Neuen Controller einsetzen

Insert the new controller into the housing and position it correctly.

Then secure it again with the two nuts.

7

Reconnect the cable connections

Kabelverbindungen am Controller wieder anschliessen

Now reconnect all previously disconnected cables.

This includes the plug connections for:

  • Engine
  • indicators
  • Charging socket
  • wiring harness
  • Battery connection

Make sure that all plug connections are fully inserted.

8

Carry out a function check

Funktionskontrolle nach Controller Austausch

Before you completely close the e-scooter again, carry out a function check.

Switch on the e-scooter and check the following functions:

  • Throttle lever
  • Rear light
  • Left and right indicators
  • Motor function

If everything works correctly, you can start assembling.

9

Reassembling the e-scooter

Serviceklappe und Rubberdeck wieder montieren

First reattach the side cover on the right-hand side of the vehicle.

Then close the service flap with the six 2.5 mm Allen screws.

Then reposition the rubber deck correctly on the footboard.

If necessary, you can use some spray adhesive or suitable glue to securely fasten the rubber deck again.

Frequently asked questions

Here you will find answers to frequently asked questions about replacing the controller.

The e-scooter does not start after replacement - what can I do?

First check all plug connections. Often a plug is not fully connected or the battery cable has been forgotten to be reconnected.

Do I have to adjust anything after replacing the controller?

Usually not. If all cables are connected correctly, the controller should work immediately.

What should I do if a plug connection is difficult to disconnect?

Always pull plugs apart straight and without force. If necessary, move them slightly back and forth to loosen them.

If you are unsure or need help, our local service teams are ready to help you.