What are these trunk modules on Song Plus / Seal U / Sealion 6?

fabianoarruda | 2025-12-27 03:50 | 20 views

I have a 2026 Song Plus Dm-i in Brazil (FWD 18,3kwh) and Im looking for a trunk organizer on Ali. Looking at pictures from reviewers I noticed there are a few differences on modules installed in the trunk. For instance, the first picture is from a reviewer in Spain so I’m assuming it’s a Seal U Dm-i. When comparing to mine(2nd picture), you can clearly see it has 2 additional modules. I’m curious if anyone knows what each of these modules do? I also noticed some unused cables are still in the place where the black box is supposed to go, so I wonder why the module is not there…

Comments (2)

arsena1fan 2025-12-27 04:09

Big silver module is the bi directional power supply, on board charger and dc-dc. Small silver box in the HV distribution center. Usually has fuses in it. Black module is universal controller for tow bar lighting.

geringoncas 2025-12-27 23:53

Brazil version has a newer inversor that is integrated with the distribution/fuse module. Look how your grey box is bigger. The hybrid control module (VCU) of Brazil version was moved due safety regulations (deformation area requirements). BYD moved this black box (the brain of the hybrid system) to the engine compartment. It is attached to the fire wall on the passager side.

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