Removing and installing adapter box for telephone system in rear passenger compartment — VW
Removing and installing adapter box for telephone system in rear passenger compartment on VW: factory workshop procedure.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📋 Procedure
Removing and installing adapter box for telephone system in rear passenger compartment
Note
The adapter box connects the handset for the telephone system in rear passenger compartment located in the centre armrest with the telephone system.
Additional information:
Operating manual
.
The adapter box for the telephone system in rear passenger compartment is installed under the right seat of the double seat row.
Removing:
Switch off ignition and all electrical loads, and pull out ignition key.
Remove upper trim at front of double seat row
General body repairs, interior
Rep. gr.
72
Seats, 3rd row (Business); Removing and installing upper trim of rear bench seat
.
Remove lower trim at front of double seat row
General body repairs, interior
Rep. gr.
72
Seats, 3rd row (Business); Removing and installing lower trim of rear bench seat
.
Remove lower trim at rear of double seat row
General body repairs, interior
Rep. gr.
72
Seats, 3rd row (Business); Removing and installing lower trim of rear bench seat
.
Release and disconnect connector
1
at rear.
Release and disconnect connector
1
at front.
Unscrew the 2 securing nuts
arrows
and remove adapter box
1
downwards.
Installing:
Install in the reverse order of removal. When doing this, note the following:
Caution
Risk of damage to housing.
If the adjustment nut is nut adjusted to a height above upper edge of adapter box housing, the retaining tabs on the adapter box housing may break when the securing nuts are tightened.
Adjust the adjustment nut to the correct dimension.
Adjusting adjustment nuts on adapter box housing:
1
Adjustment nut
2
Tab on adapter box housing
A
Dimension between upper edge of tab and upper edge of adjustment nut
B
Dimension between upper edge of tab and upper edge of adapter box housing
Adjust adjustment nuts
1
so that dimension
a
is higher than dimension
b
.
Carry out the same adjustment for the second stud bolt of the adapter box housing.
Note
If cable ties, bonded parts or insulation are removed during removal of the telephone bracket, the same versions of the respective components must be reinstalled at the same positions during installation procedure.
If the wire retainers are not reinstalled, there may be rattling during vehicle operation or wires and connections may become damaged.
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.
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The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.