Removing the auxiliary coolant pump for the exhaust turbocharger
WARNING:
High-voltage system.
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!
- All work on the high-voltage system may only be carried out by specially trained and technically experienced personnel.
- For additional information see: SAFETY INSTRUCTIONS ON HANDLING HYBRID CARS .
- For additional information see: NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT .
WARNING:
Hot fluids.
Risk of scalding!
Risk of scalding!
- Conduct all work in the vehicle wearing appropriate personal protective equipment only.
NOTE:
TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
Preliminary work
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING RESONATOR
- Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
- Refer to DRAINING THE COOLANT FROM THE HIGH-TEMPERATURE COOLING SYSTEM
- Refer to CONNECTING THE COOLANT LINES FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT
NOTE:
RISK OF DAMAGE
Non-visible damage to the coolant pump.
Forcibly removing, installing or dropping the coolant pump down will damage it.
Non-visible damage to the coolant pump.
Forcibly removing, installing or dropping the coolant pump down will damage it.
- Remove and install the coolant pump without damaging it and without applying external force.
- Avoid impacts/knocks to the coolant pump (e.g. by tools, falling down, hard contact with base).
- Replace coolant pump after being dropped or hard impacts/knocks.
NOTE:
RISK OF DAMAGE
Electrostatic discharge.
Damage to or destruction of electrical components.
Electrostatic discharge.
Damage to or destruction of electrical components.
- Leave the electrical components in their original packaging until they are being installed. Only use the original packaging for returning the product. Always package removed components straight away.
- Read and comply with user information on using the associated special tool 12 7 060.
- Only tap the housings of electrical components. Do not tap pins or multi-pin connectors directly.
- Wear electrically conductive clothing and antistatic shoes (with ESD symbol).
- For additional information, see: NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .
NOTE:
TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
- Unlock and release plug connection (1).
- Unlock and loosen coolant line (2).
- Loosen nut (3).
- Feed out and remove the retainer (4) in the marked area.
- Feed out and remove auxiliary coolant pump.