Removing and installing interior aerial 1 for entry and start authorisation R138 — VW
Removing and installing interior aerial 1 for entry and start authorisation R138 on VW: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📋 Procedure
Removing and installing
interior aerial 1 for entry and start authorisation
R138
Caution
To disconnect and reconnect the battery, the procedure described in the workshop manual should be strictly adhered to
Chapter
.
Note
Additional information:
Operating manual
Self-study programme
No.
488
The Passat 2011
Self-study programme
No.
273
The Phaeton - Convenience and Safety Electronics
Current flow diagrams, Electrical fault finding and Fitting locations
Fault detection and fault display:
The access and start authorisation system is equipped with self-diagnosis which makes fault finding easier.
All faults concerning the entry and start authorisation system are output via the
convenience system central control unit
J393
.
For fault finding, use the systems described in chapter
“Vehicle diagnosis, testing and information system”
in
“Guided Fault Finding”
mode
Chapter
.
The
interior aerial 1 for entry and start authorisation
R138
is located between the front seats under the front section of the centre console.
Note
Further coding, basic setting and adaption are not necessary if the
interior aerial 1 for entry and start authorisation
R138
is replaced. Delete entry made in event memory
Vehicle diagnostic tester
.
Removing:
Note
The alignment and exact positioning of the aerials is essential for their function. Before removing the antennas, mark the exact positions and alignment of the antennas. Reinstall the antennas at the exact same positions and aligned in the same way. The thickness of the adhesive pad on the aerials is a part of its functionality. Do not use a commercial type adhesive to restick if the adhesive bonding of an aerial is insecure. Install a new aerial with new adhesive pad in this case. Non observance will cause the KESSY system to malfunction.
Switch off ignition and all electrical consumers.
Disengage ignition key out in position 0 (forward notch).
Remove centre console
General body repairs, interior
Rep. gr.
68
Centre console; Removing and installing centre console
.
Note
The vehicle carpet is not shown in the figure for reasons of clarity.
Release and detach connector
2
and undo the adhesive bond of the
interior aerial 1 for entry and start authorisation
R138
1
.
Remove the
interior aerial 1 for entry and start authorisation
R138
1
from the vehicle.
Installing:
Install in the reverse order of removal. When doing this, note the following:
Reconnect connector
2
to
interior aerial 1 for entry and start authorisation
R138
1
, ensure it engages.
Align and bond
interior aerial 1 for entry and start authorisation
R138
onto centre console in the position marked during removal.
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.
Ask about my car →Other VW procedures
- Removing engine · 41 torque figures
- Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 torque figures
- Removing and installing actuator
- Removing and installing selector lever cable, vehicles up to 05.2012
- Cleaning ATF lines and ATF cooler – VW Phaeton 4.9 TDI CBWA
- 8-speed automatic gearbox 0C8 — Removing and installing ATF strainer
- Removing and installing adaptive suspension valve blockNX7
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.