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Folding top compartment for BMW 4 Series G23 Convertible LCI 420i (2025)

This Folding top compartment technical drawing provides a detailed breakdown of the assembly for the 4 Series G23 Convertible LCI 420i. It includes part names, part numbers and all associated mounting hardware for vehicles produced between 2025.

Folding top compartment
No. Description Supp. Qty  From   Up To  Part Number Price Notes
contains microswitch, con top comp floor
I028 and I029
01 Conv top compartment with microswitch 1 51177490641 Shop at ECS Tuning
only in conjunction with
-- Information label travel path VVK 1 54345A6F8E6 Shop at ECS Tuning
02 Torx bolt ISA M6X18 SW 4 07146959923 $0.55 Shop at ECS Tuning
03 Fixing plug 14 07147397783 Shop at ECS Tuning
04 Mount, headliner, left 1 51179881005 Shop at ECS Tuning
04 Mount, headliner, right 1 51179881006 Shop at ECS Tuning
For vehicles with
Trailer coupling

S3ACA=Yes
05 Information label travel path VVK 1 54345A6F8E6 Shop at ECS Tuning

See Also

Frequently Asked Questions

What assembly is shown in the BMW 4 Series G23 Convertible LCI 420i Folding top compartment?
This technical diagram illustrates the Folding top compartment within the Sliding Roof / Folding Top group for the 4 Series G23 Convertible LCI 420i produced during 2025. It provides a detailed exploded view of the components, identifying key parts such as the Conv top compartment with microswitch (Part #51177490641).
Which models use the hardware listed in this Folding top compartment?
The hardware and components featured in the Folding top compartment are specific to the 4 Series G23 Convertible LCI 420i produced during 2025. These technical specifications ensure that parts like the Conv top compartment with microswitch (51177490641) are correctly matched to the vehicle's structural and mechanical requirements.
How do I find specific parts within the Folding top compartment assembly?
Each item in the Folding top compartment corresponds to the numbered list below the illustration. For the 4 Series G23 Convertible LCI 420i, you can identify the Conv top compartment with microswitch by locating its position on the schematic, which then links to the official BMW part number 51177490641 for the Sliding Roof / Folding Top section.