Removing and installing fuel pump control unit J538, vehicles with high-voltage system — VW
Removing and installing fuel pump control unit J538, vehicles with high-voltage system on VW: 20 steps, engines CUKB.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Golf VII (5G, 2012–2020)
Don't miss
- Make sure that connectors are attached properly; pull to check that they are correctly engaged.
🔧 Engine codes this applies to
📋 Procedure
- Move front seats to foremost position.
- Switch off ignition.
- Remove rear shelf General body repairs, interior70Trims, interior; Removing and installing rear shelf.
- Fold down rear seat backrest General body repairs, interior72Rear seats; Removing and installing bench seat/individual seats.
- Remove luggage compartment floor General body repairs, interior70Luggage compartment trims; Removing and installing luggage compartment floor.
- Remove trims under luggage compartment floor General body repairs, interior70Luggage compartment trims; Assembly overview - luggage compartment floor.
- Fold down rear seat backrests.
- Remove battery Electrical system27Battery; Removing and installing battery.
- Remove subwoofer Communication91Sound system; Removing and installing subwoofer R211.
- Unscrew nuts (1) to (5).
- Take off cover (6).
- Unclip sealing grommet downwards from cover (6).
- Move cover (6) towards rear along wiring harness.
- Using a screwdriver, carefully release retaining hooks (2) and (4).
- At the same time, carefully pull fuel pump control unit (3) out of mounting.
- Disconnect connector (1). To do this, release connector catches. [Note: Make sure that connectors are attached properly; pull to check that they are correctly engaged.]
- Insert fuel pump control unit J538 into mounting, and push it in until it engages audibly.
- Connect battery. Observe required procedures after connecting battery Electrical system27Battery; Disconnecting and connecting battery.
- Install luggage compartment floor General body repairs, interior70Luggage compartment trims; Removing and installing luggage compartment floor.
- Install rear shelf General body repairs, interior70Trims, interior; Removing and installing rear shelf.
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
- Renewing propshaft flange oil seal on rear final drive (final drive removed), final drive 0BN
- Removing and installing mirror housing – VW Touareg II · 1 torque figures
- Removing and installing thermostat with union (engine codes CASA and CASD) · 1 torque figures
- Checking return flow rate of injectors (piezo injectors) with engine running.
- Removing and installing lower part of right intake manifold
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.