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Home >> Audi >> 2016 >> A6 Premium Plus >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Head, VALVETRAIN- CYMC, CYRB, CYRC, CWPB, DAXB, DAXC, CJEB, CJED, CJEE, CNCD, CNCE, CUHA, CUJA, CNCB, CUHB, DAYB, CYGA, CYNB, CYPA, CYPB, CYYA, CVJA >> 15 Cylinder Head, VALVETRAIN >> Cylinder Head >> Compression, Checking >> Test Sequence

Test Sequence

Required preliminary work. Refer to COMPRESSION, CHECKING [For transmission(s) 0B5, 0CK] .

-- Remove the ignition coils with power output stages. Refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING .

-- Disconnect the connectors:

GWWA15-11487Courtesy of AUDI OF AMERICA, LLC
  1. For the FSI Fuel Injectors in the Cylinder Head
  2. For MPI Fuel Injectors in the Intake Manifold, If Installed

-- Remove the spark plugs using the :3122B  .

GWWA28-10143Courtesy of AUDI OF AMERICA, LLC

-- Check the compression using :VAG1763  , :VAG1381/1  and :VAG1381/5A  . Information on using the tester. Refer to the Operating Instructions.

GWWN15-10811Courtesy of AUDI OF AMERICA, LLC

-- Have a second technician operate the starter until the tester stops displaying a pressure increase.

Compression Pressure Pressure
New 11.0 to 14.0 bar (159.54 to 203.05 psi)
Wear limit 7.0 bar (101.52 psi)
Maximum difference between cylinders 3.0 bar (43.5 psi)