In the video linked below, you can see detailed instructions on how to install the VOLspeed V4 tuning module in your Bosch engine. This tuning module from VOLspeed is limited to 45 km/h, but the "504 Error" no longer occurs and 45 km/h is still fast enough. This module is suitable for all Bosch Active, Plus, Performance and CX motors from 2014 to 2021.
E-Bike Tuning with VOLspeed V4 for Bosch motors
The installation of the VOLspeed V4 tuning module is not witchcraft.
You will definitely need a foot pedal puller to install the VOLspeed V4. If you don't already have one, you can order it in a set with the tuning module from our online shop. Depending on your bike, you may also need a Torx T20 screwdriver, an Allen wrench and pliers. But many of these tools are available in most households anyway.
OK, then you can start and, as you can see in the video, you only have to open the motor cover and pull off the crank. After that, the plug connections are almost self-explanatory and thanks to our instructions, nothing can go wrong. The tuning module is hidden directly under the engine and is not visible from the outside. After you have reassembled the engine cover and crank in a few easy steps, the module can be tested immediately in live operation.
Now press the minus button on your display for three seconds and you can set the desired speed between 25 and 45 km/h. Get on your e-bike and go for a quick spin around the company grounds! Everything works perfectly and can be switched off just as easily: Press the minus button again for three seconds and the module is off. If you want to remove the module again, you can simply watch this video backwards. No, all joking aside, removing the module is no problem with our tutorial video.
You can find more tuning modules for other motors and an introduction on our e-bike tuning pages.