Checking the fuel pump delivery rate for prepressurisation G6, engine codes CBAA, CBAB, CBBB, CBAC, CBDC — VW
Checking the fuel pump delivery rate for prepressurisation G6, engine codes CBAA, CBAB, CBBB, CBAC, CBDC on VW: factory workshop procedure for engines.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📐 48 workshop diagrams for CBAA
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
Checking the fuel pump
delivery rate for prepressurisation
G6
, engine codes CBAA, CBAB, CBBB, CBAC, CBDC
Special tools and workshop equipment required
Pressure tester
VAS 6551
Container > 3 litre with measuring scale
Vehicle diagnosis tester
Test prerequisite:
Fuses must be OK.
Battery voltage at least 12 V
All electrical consumers, e.g. lights and rear window heating, must be switched off.
Separate connection
A
from
supplementary fuel pump
V393
or
fuel pump 2
V277
.
Separate plug-in connector
A
(completely black or with black marking) of fuel supply line.
Connect
VAS 6551/1
pressure tester cable to fuel supply
A
.
Guide open end of line into measuring container.
Connect
diagnosis tester
and perform the guided function
“Checking electric fuel pump(s)”
.
Note
The fuel pump is now actuated for 30 seconds.
After fuel flow, read quantity of fuel delivered on measuring container. Specification: at least 1000 ml/30 s
If the specification is not attained:
Check fuel supply line between fuel pump and engine compartment for kinks, crushes or damage.
If necessary, renew defective line and repeat test.
If it is not kinked, crushed or damaged, remove rear bench seat
General body repairs, interior
Rep. gr.
72
Rear seats; Removing and installing bench seat / individual seats
.
Detach carpet under seats and fold it over.
General body repairs, interior
Rep. gr.
70
Interior trim; Assembly overview - foot support and floor covering
Remove cover from fuel delivery unit.
Note
Press in securing ring to release fuel line.
Pull fuel supply line (black or black marking)
A
off fuel delivery unit.
Connect
VAS 6551/1
pressure tester cable to fuel supply
A
.
Guide open end of line into measuring container.
Connect
diagnosis tester
and perform the guided function
“Checking electric fuel pump(s)”
.
Note
The fuel pump is now actuated for 30 seconds.
After fuel flow, read quantity of fuel delivered on measuring container. Specification: at least 1000 ml/30 s
If the specification is not attained:
Check voltage supply
Chapter
and current draw
Chapter
of fuel pump.
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
- Installing a previously used balancer shaft module again – VW · 5 torque figures
- Removing and installing fuel delivery unit, fuel gauge sender · 2 torque figures
- Removing engine, Passat, Passat CC, Tiguan, Eos – VW 2.0 TDI · 1 torque figures
- Removing and installing suction-jet pump – VW Passat B8
- Removing and installing oil filter housing – VW Polo 6C · 3 torque figures
- 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
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.