Removing and installing control unit 1 for information electronics J794 — VW
Removing and installing control unit 1 for information electronics J794 on VW: 10 steps. What to remove, in what order, and what to check after.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Polo 6C (2014–2017)
📋 Procedure
- Open glove compartment.
- Eject any data medium that is still in control unit 1 for information electronics J794.
- Switch off ignition and all electrical consumers, and remove ignition key.
- Remove glove compartment Interior equipment 68. Compartments and covers; Removing and installing glove compartment.
- Insert 2 radio release tools T10057 into release slots in control unit 1 for information electronics J794(1) until they engage.
- Grasp hold of grips on radio release tool T10057 and pull control unit 1 for information electronics J794(1) out of dash panel.
- Disconnect connectors from control unit 1 for information electronics J794(1).
- Fit protective cap for cable connector VAS 6223/9(1) onto MOST bus connector (2).
- Press locking lugs on control unit 1 for information electronics J794 and pull out radio release tool T10057.
- Slide control unit 1 for information electronics J794 into glove box until it engages.
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
- Adjusting vehicle level sender -G78- on front axle
- Removing and installing fuel tank with its attachments
- Removing and installing parts of exhaust system
- Bleeding the brakes and changing the brake fluid using the filling and bleeding appliance VW 1238/1
- Repairing servo-assisted steering gear
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 → · How these pages are made →Workshop data on this page last updated 20 Sep 2026.