Removing and installing subwoofer in rear shelf R157, high-voltage vehicles — AUDI
Removing and installing subwoofer in rear shelf R157, high-voltage vehicles on Audi: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for AUDI — the factory write-up, straight from real workshop data.
📋 Procedure
Removing and installing
subwoofer in rear shelf
R157
, high-voltage vehicles
Subwoofer in rear shelf
R157
is located in spare wheel well.
It is not necessary to de-energise the vehicle.
Switch off ignition and all electrical equipment and remove ignition key.
WARNING
Safety hazard: the engine can start unexpectedly.
Before carrying out general work on a vehicle with high-voltage electrical system, switch off the ignition and remove the ignition key from the vehicle.
DANGER!
Risk of fatal injury if high-voltage components are damaged.
Observe the following when working in the vicinity of high-voltage components or wiring:
It is not permitted to use cutting or forming tools, other sharp-edged tools or heat sources such as welding, brazing, soldering, hot air or thermal bonding equipment.
Before starting work, visually inspect the high-voltage components in the areas involved.
Before working in engine compartment, visually inspect
power and control electronics for electric drive
JX1
,
electric drive motor
V141
,
air conditioner compressor
V470
and high-voltage wiring.
Before working on the vehicle underbody, visually inspect the high-voltage wiring and covers.
Before working on the rear section of the vehicle, visually inspect the high-voltage wiring and the electro-box with the
maintenance connector for high-voltage system
TW
.
Visually inspect all potential equalisation lines.
Check the following when making the visual inspection:
There must be no external damage on any component.
The insulation of the high-voltage wiring and potential equalisation lines must not be damaged.
There must be no unusual deformation of the high-voltage wiring.
All high-voltage components must be identified by a red warning sticker.
Removing
Remove luggage compartment floor (rear)
General body repairs, interior
Rep. gr.
70
Luggage compartment trim panels; Removing and installing luggage compartment floor
.
Move battery cooling module for
drive battery
A2
to service position
Heating, air conditioning
Rep. gr.
87
Battery cooling module
.
Remove rear cross panel trim
General body repairs, interior
Rep. gr.
70
Luggage compartment trim panels; Removing and installing lock carrier trim
.
Unplug connector
3
at
subwoofer in rear shelf
R157
1
.
Remove bolts
2
at
subwoofer in rear shelf
R157
1
.
Take
subwoofer in rear shelf
R157
1
out of spare wheel well together with bracket.
Unscrew bolts
3
at bracket
2
and remove bracket
2
from
subwoofer in rear shelf
R157
1
.
Installing
Installation is performed in reverse sequence.
For tightening torques and other fitting notes see overview of fitting locations
Chapter
.
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.