Part II, cylinder block – assembly overview and fastening

If the bearing cap bolts are loosened, the cylinder block must be renewed complete with the crankshaft.

Measuring the main bearing clearance is not possible with normal workshop equipment.

• 1 Cylinder block
  • Dismantling and assembling aluminium cylinder block ⇒ 2.1 Assembly overview
  • Dismantling and assembling pistons and conrods ⇒ 3 Pistons and conrods
• 2 50 Nm
  • Tightening sequence: Upper right bolt first, then lower right bolt, and bolts on left last (as seen in direction of travel).
• 3 Oil filters
  • Loosen on hexagon.
  • Tighten threaded supports to stop by hand.
  • Tighten filter by hand.
  • Observe fitting instructions on oil filter
• 4 M8: 20 Nm + ¹/4 turn (90°) further.
• 5 Ancillary bracket
  • For alternator, air conditioner compressor and poly V-belt tensioning element
  • Removing and installing ancillary bracket on vehicles with air conditioning system: ⇒ Heating, air conditioning system; Rep. gr. 87
• 6 13 Nm
  • Loosen and tighten flywheel end bolts only with Allen key, long reach 5 mm -T10058-.
• 7 Oil pan
  • Removing and installing ⇒ 1.3 Removing and installing oil sump
• 8 Oil drain plug, 30 Nm
  • With captive seal
  • Renew
• 9 Tensioning element
  • For poly V-belt.
  • For vehicles with an air conditioning system only.
  • Swing with spanner (16 mm) to slacken poly V-belt.
  • Removing and installing poly V-belt ⇒ 1.4 Removing and installing poly-V belt

Toothed belt routing

A - Coupling drive toothed belt

B - Main drive toothed belt