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Home >> BMW >> 2017 >> 530i >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine - Pistons/Counterbalance Shafts - Repair (G30) >> 11 25 Piston With Rings And Bolts >> 11 25 530 Removing and installing/replacing all pistons (engine removed) (530e PHEV, 2021-2022) >> Removing all pistons with connecting rod

Removing all pistons with connecting rod

CAUTION: Component with heavy weight.
Injury hazard!
  • Note component's center of gravity.
  • Support component using a jack.
  • Secure component against falling off the jack.
CAUTION: On releasing high pressure line, fuel may emerge at high speed.
Injury hazard!
  • Wear suitable personal protective equipment.
  • Before performing any installation work, allow cooling system to cool down to less than 40°C.
  • Note warnings on cylinder head cover.
NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

Preliminary work 

NOTE: The description is for one component only. The procedure is identical for all further components.
NOTE: TECHNICAL INFORMATION 
Piston, piston pin, connecting rod and connecting rod bearing shells are matched to each other and balanced.
Always install the pistons, piston pins, connecting rods and connecting rod bearing; shells in the cylinder from which they were removed.
NOTE: TECHNICAL INFORMATION 
The connecting rods of the engine are balanced and matched to each other.
A single connecting rod is not permitted to be replaced. Always replace all connecting rods.
  • Detach the lower connecting rod bearing
NOTE: RISK OF DAMAGE 
Damage on the cylinder wall and oil spray nozzles.
A large force can scratch the cylinder wail and bend the oil spray nozzles.
  • Carefully shift the piston and connecting rod in the engine block.