Piston Ring, Engine

1999 Volkswagen Cabrio (1V7) L4-2.0L (ABA)SECTION Piston Ring, Engine
Piston Ring End Gap [1]:
Compression rings:
New 0.20-0.40 mm (0.0079-0.0157 in.)
Wear limit 1.0 mm (0.039 in.)
Oil scraper ring:
New 0.25-0.50 mm (0.0098-0.0197 in.)
Wear limit 1.0 mm (0.039 in.)

Piston Ring Side Clearance [2]:
Compression rings:
New 0.02-0.05 mm (0.0008-0.0019 in.)
Wear limit 0.15 mm (0.0059 in.)
Oil scraper ring:
New 0.02-0.05 mm (0.0008-0.0019 in.)
Wear limit 0.15 mm (0.0059 in.)


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[1]: Piston ring end gaps are checked with the piston rings inserted approximately 15 mm (5/8 in.) from the bottom of the cylinder.
[2]: Piston ring grooves should be thoroughly cleaned before checking ring side clearance. Measure each ring in its original groove.






RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.