• Warning!!

    Riding a tuned or deristricted EMTB is not a trivial offence and can have serious legal consequences. Also, many manufacturers can detect the use of a tuning device or deristricting method and may decline a repair under warranty if it was modified from the intended original specification. Deristricting EMTB's can also add increased loads for motors and batteries. Riding above the local law limit may reclassify the bike as a low-powered bike, requiring insurance, registration and a number plate.

    Be aware of your local country laws. Many laws prohibit use of modified EMTB's. It is your responsibility to check local laws. Ignoring it, has potential implications to trail access, and risk of prosecution in the event of an accident.

    UK Pedelec Law

    Worldwide Laws

    We advise members great caution. EMTB Forums accepts no liability for any content or advice given here. 


Bosch speedbox 3.0 error 504.

NormiQ

New Member
May 23, 2020
5
1
Wales - Cardiff
Hi guys, my motor has been replaced about 2 months ago because of error 500. I got new motor, i've done about 250 miles so far with speedbox 3.0 and error 504 turned up. I got Bosch performance cx line with 1.4.8.0 DU software. Error 504 turned up when i was standing on the red light. And now it's in "limp mode". Did anyone experienced this error with 1.4.8.0?
Thanks.
 

jobridder

New Member
Apr 27, 2020
30
6
USA
Hi guys, my motor has been replaced about 2 months ago because of error 500. I got new motor, i've done about 250 miles so far with speedbox 3.0 and error 504 turned up. I got Bosch performance cx line with 1.4.8.0 DU software. Error 504 turned up when i was standing on the red light. And now it's in "limp mode". Did anyone experienced this error with 1.4.8.0?
Thanks.
Which gen motor is it? 1.4.8.0 seems like 3rd?
 

NormiQ

New Member
May 23, 2020
5
1
Wales - Cardiff
After 23 KM and more than 90 minutes, finally error 504 is gone. But I don't think I will be back to speedbox 3.0 after that. I will be looking for something else...
 

Rosemount

E*POWAH Elite
May 23, 2020
817
1,712
Qld Australia
Hi guys, my motor has been replaced about 2 months ago because of error 500. I got new motor, i've done about 250 miles so far with speedbox 3.0 and error 504 turned up. I got Bosch performance cx line with 1.4.8.0 DU software. Error 504 turned up when i was standing on the red light. And now it's in "limp mode". Did anyone experienced this error with 1.4.8.0?
Thanks.

Mine did the same . Waiting at traffic lights and BOOM - 504 . Older firm ware . Updated firm ware 500 KM. Charged the battery at home . Drove 2 hours to a trail . Turned bike on - 504 .
 

EMTB Forums

Since 2018

The World's largest electric mountain bike community.

512K
Messages
25,055
Members
Join Our Community

Latest articles


Top