TorqFix

Installing a new balancer shaft module — AUDI

Installing a new balancer shaft module on Audi: 21 steps, 3 torque figures, engines CFHC, CFHE, CFHF, CFJA.

Fitting a new balancer shaft module to the four-cylinder diesels with engine codes CFHC, CFHE, CFHF, CFJA, CLCA, CLCB and CSHA (platform codes S1, 2H) starts before the module touches the block: the intermediate gear bolt is backed off approx. 45°, never fully, so the thrust washer cannot drop behind the gear. The module goes onto both dowel sleeves without marking the gear coating, the bolts are taken down in stages, the balancer shaft is locked with T10255 and its gear fitted centrally in the elongated holes. Then the intermediate gear is pressed hard into mesh with the drive and balancer gears while the balancer gear is turned slightly anticlockwise, and its bolt tightened. Backlash setting is the whole job: none should be felt afterwards.

21 steps 7 engine codes 3 torque figures engine codes and torque figures merged from 3 documented variants

🧭 Before you start

Loosen the intermediate gear bolt slightly, check the dowel sleeves and set the module on the block. Tighten all bolts to 6 Nm in sequence, bolts 3 and 5 to 13 Nm plus 90°, then the rest to 20 Nm plus 90°. Lock the balancer shaft, fit its gear centrally, press the intermediate gear into mesh and tighten it, remove the crankshaft stop and refit sump, damper with new bolts and poly V-belt.

Fits: platform codes S1, 2H

  • Timing position: the crankshaft or camshaft is set and locked during this job
  • Renewed: securing bolts

Don't miss

  • Loosen the intermediate gear bolt only about 45° so the thrust washer stays in place.
  • Both dowel sleeves must be present before the module goes on.
  • Do not damage the coating on the intermediate gear when positioning the module.
  • If the elongated holes will not centre, move the balancer gear by a tooth and refit.
  • No backlash should be perceptible by hand after the intermediate gear is tightened.
  • Renew the vibration damper bolts.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

TorqueFastener / step
13 Nm (9.6 lb-ft)Tighten bolts (3) and (5)
20 Nm (15 lb-ft)Tighten bolts (1 … 2), (4) and (6)
6 Nm (4.4 lb-ft)Initially tighten bolts in the sequence (1 … 6)

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

  1. ⚠ The threaded connection of the intermediate gear wheel must be loosened to position the balancer shaft module. When doing this, do not loosen the bolt fully to prevent that the thrust washer does not slip behind the intermediate gear wheel. Thrust washer installation position — Before positioning balancer shaft module on cylinder block, loosen bolt (1) for intermediate gear wheel approx. 45°.
  2. Check to see whether both dowel sleeves are in place to correctly position balancer shaft module on cylinder block.
  3. Place balancer shaft module on cylinder block. [Note: Take care not to damage coating on intermediate gear wheel.]
  4. Fit bolts in sequence (1 … 6) and hand-tighten at first.
  5. Tighten bolts of balancer shaft module as follows:
CFHC? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Initially tighten bolts in the sequence (1 … 6) to 6 Nm. — 6 Nm (4.4 lb-ft)
  2. Tighten bolts (3) and (5) to 13 Nm. — 13 Nm (9.6 lb-ft)
  3. Turn bolts (3) and (5) 90° further with rigid spanner.
  4. Tighten bolts (1 … 2), (4) and (6) to 20 Nm. — 20 Nm (15 lb-ft)
  5. Turn bolts (1 … 2), (4) and (6) 90° further with rigid spanner.
  6. Lock balancer shaft with locking device T10255. To do this, turn balancer shaft if necessary.
  7. Carefully fit gear wheel of balancer shaft onto balancer shaft. While doing this, press intermediate wheel to one side slightly. [Note: Ensure threaded holes in balancer shaft are central within elongated holes of balancer shaft gear wheel.If elongated holes in balancer shaft gear wheel cannot be aligned with the threaded holes, the balancer shaft gear wheel must be turned further by a corresponding number of teeth and must be mounted again.]
  8. Securely tighten balancer shaft gear wheel (arrows).
  9. Remove locking tool T10255.
  10. Press intermediate gear wheel (3) forcefully (with assistance of a wooden rod if necessary) in (direction of arrow) into teeth of drive gear wheel (2) and balancer shaft gear wheel (1) (meshing together).
  11. When doing so, turn the balancer shaft gear wheel (1) slightly in an anticlockwise direction.
  12. Firmly tighten bolt for intermediate gear wheel using bit T10099 and 14 mm tool insert T10393.
  13. Remove crankshaft stop T10050. [Note: No backlash may be perceptible after installing intermediate gear wheel. This can be checked by hand using light force.]
  14. Install sump .
  15. Install belt pulley/vibration damper (replace securing bolts)
  16. Install poly V-belt .

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

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Workshop data on this page last updated 20 Sep 2026.