Test sequence
- Remove fuse 29 from fuse holder.
NOTE:
- Removing fuse 29 interrupts the voltage supply to the injectors.
- Remove engine cover.
- Disconnect connectors from ignition coils 1...6.
NOTE:
- Mark connector and component before disconnecting.
- Remove ignition coils with final output stage for cylinders 1...6 using puller T10095.
- Remove spark plugs with Spark Plug Removal Tool 3122B.
- Have a second technician fully depress accelerator pedal.
- Check compression pressure with compression tester VAG 1763.
NOTE:
- Using compression tester → Operating instructions
- Operate starter until tester shows no further pressure increase.
Compression pressure values
New: 10...13 bar
Wear limit: 7.5 bar
Permissible difference between all cylinders: 3 bar
- Check DTC memory: → 01 ON BOARD DIAGNOSTIC (OBD)
- Read readiness code: → 01 ON BOARD DIAGNOSTIC (OBD)
- Generate readiness code again if DTC memory has been erased or engine control module separated from permanent positive supply: → 01 ON BOARD DIAGNOSTIC (OBD)