Removing and installing high-voltage wiring harness for drive motor PX2 — VW
Removing and installing high-voltage wiring harness for drive motor PX2 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
ℹ️ Torque figures below come verbatim from workshop data — always cross-check against your vehicle's factory manual before final tightening.
Removing and installing
high-voltage wiring harness for drive motor
PX2
Special tools and workshop equipment required
Torque wrench
V.A.G 1331
Removing
DANGER
Risk of death due to high voltage.
Electrical shocks will cause serious injuries or death.
Have a qualified technician de-energise the high-voltage system.
De-energise high-voltage system
Chapter
.
Select Park position for gearbox.
Reconnect
battery
A
Electrical system
Rep. gr.
27
Disconnecting and reconnecting battery
.
Note
The high-voltage cables are secured with cable retainers. The cable retainers must be detached before disconnecting connectors in order to allow for pulling off the connectors.
Unscrew bolts
2
from cover
1
.
Pull out securing element
3
on connector of high-voltage cable
2
for
charging unit 1 for high-voltage battery
AX4
in
direction of arrow A
.
Press locking mechanism
4
.
Pull connector of high-voltage cable
2
for
charging unit 1 for high-voltage battery
AX4
off
power and control electronics for electric drive
JX1
1
.
Remove cover
1
.
Press catches
3
in direction of arrows
A
,
B
and
C
, respectively.
Unclip catches
2
upwards.
Remove safety cover
1
.
Remove bolts
1
.
Remove bolts
2
.
Pull out
high-voltage wiring harness for drive motor
PX2
3
.
Fit cover on
power and control electronics for electric drive
JX1
.
Remove noise insulation
General body repairs, exterior
Rep. gr.
66
Noise insulation; Assembly overview - noise insulation
.
Remove
electrical air conditioner compressor
V470
Heating, air conditioning
Rep. gr.
87
Air conditioner compressor; Removing air conditioner compressor from and installing to bracket
.
Secure
electrical air conditioner compressor
V470
to body using suitable workshop equipment.
Remove bolts
2
.
Remove cover
1
.
Unscrew bolts
1
and
2
.
Pull out
high-voltage wiring harness for drive motor
PX2
3
in
direction of arrow A
.
Detach
high-voltage wiring harness for drive motor
PX2
from retainers.
Remove
high-voltage wiring harness for drive motor
PX2
from motor compartment.
Installing
Installation is carried out in the reverse sequence. Observe the following when doing this:
Note
Renew the bolts for the cover.
WARNING
Risk of death due to high voltage.
Electrical shocks will cause serious injuries or death.
Have a qualified technician commission the high-voltage system.
Commission high-voltage system
Chapter
.
Specified torques
Chapter
“
Assembly overview - power and control electronics for electric drive
”
Component
Specified torque
Bolts for cover
8 Nm +120°
Bolts on
high-voltage wiring harness for drive motor
PX2
, M8 x 20
20 Nm
Bolts securing
high-voltage wiring harness for drive motor
PX2
to housing, M6 x 20
5 Nm
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
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.