Contents Wiring diagrams Section: Mechanical All sections

Fitting Pistons Audi A6 C4

  1. Measure cylinder bore diameter in 3 places: at center of bore and .39" (10 mm) from top and bottom of bore. If cylinder bore diameter is not within specification, hone cylinder bore until diameter meets first or second oversize specification. See «CYLINDER BLOCK»(ref-49283-S17813232702001091300000) table under ENGINE SPECIFICATIONS.
  2. Measure piston diameter at 90 degree angle to piston pin, about .39" (10 mm) from bottom of piston skirt. If piston diameter is not within specification, replace piston. See «PISTONS, PINS & RINGS»(ref-49283-S05133314472001091300000) table under ENGINE SPECIFICATIONS.