Installing Coolant Pump

Information 

• The coolant pump on the V6 bi-turbo engine has a color marking with the inscription V8 on the housing. 
• Mark a coolant pump on the V6 bi-turbo engine clearly with a marker/pen if the V8 inscription is missing. 

1. Clean sealing faces. Fit coolant pump with a new seal.
   Fig 1: View Of Coolant Pump

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   1. Coolant pump
   2. Seal; rubber seal fitted in coolant pump
   3. Screw, M6 x 25
2. Screw in and tighten fastening screws. → Tightening sequence for coolant pump Tightening torque 12 Nm (9 ftlb.) 
   Fig 2: Identifying Coolant Pump Tightening Sequence

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   NOTE: Incorrect handling of pulley

   • Risk of damage to pulley

   → The pulley is sensitive to impact. Do not pry off the pulley with a screwdriver.

   → Do not re-use a damaged pulley.

3. Fit the pulley on the coolant pump. Screw in the three fastening screws by hand.
4. Screw in and tighten the three fastening screws -arrows-  on the coolant pump pulley. Block the pulley using a counter-hold tool counter-hold tool Nr.38  if necessary. Tightening torque 23 Nm (17 ftlb.) 
   Fig 3: Identifying Coolant Pump Pulley Fastening Screws

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