Removing the electric A/C compressor (EKK)
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 .
Preliminary work
- Remove right flap in luggage compartment TRIM PANEL .
- De-energize the HIGH-VOLTAGE SYSTEM .
- CHECK that no voltage is applied.
- Disconnect the (starter unit battery) negative BATTERY CABLE .
- Remove battery trunk COVER .
- Disconnect the system battery negative BATTERY CABLE .
- Bring front compartment lid in the SERVICE POSITION .
- Suction the AIR CONDITIONING .
- Remove the ACOUSTIC COVER .
- Remove the hood rear SEAL .
- Remove left and right WIPER ARM .
- Remove the rear left engine compartment COVER .
- Remove the rear right engine compartment COVER .
- Remove the cowl COVER .
- Remove the left and right shock tower TENSION STRUT .
- Remove the upper FIREWALL .
- Remove rear ACOUSTIC COVER .
- Remove RESONATOR .
- Remove the DME CONTROL UNIT .
- Remove the integrated POWER SUPPLY MODULE (PDM).
- Remove control unit BRACKET .
- Remove the front UNDERBODY PROTECTION .
- Remove the center UNDERBODY PROTECTION .
- Drain the coolant from the LOW-TEMPERATURE COOLING SYSTEM .
- Connect the coolant hose of the LOW-TEMPERATURE COOLANT CIRCUIT .
- Remove tank VENT VALVE .
- Remove the INTAKE PLENUM .
WARNING:
Hot fluids.
WARNING:
Risk of scalding!
WARNING:
- Conduct all work in the vehicle wearing appropriate personal protective equipment only.
WARNING:
Hot surfaces.
WARNING:
Risk of burning!
WARNING:
- Perform all work only on components that have cooled down.
CAUTION:
Refrigerant circuit under high pressure.
CAUTION:
Injury hazard!
CAUTION:
- Note and follow safety instructions on containers.
- Avoid contact with refrigerant; wear safety goggles and hand protection.
- For ADDITIONAL INFORMATION see: 64 50 handling refrigerant and 64 50 NOTES on air conditioning repair work
NOTE:
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
CAUTION:
Residual pressure in the heating and air conditioning system.
CAUTION:
Injury hazard!
CAUTION:
- Wear safety goggles and protective gloves when disconnecting the refrigerant line.
- Close the refrigerant lines with seal plugs.
- Remove coolant hoses (1) from the holder (2).
- Remove the holder (2).
- Open the holder (arrow) and remove the coolant hose (1).
- Release the screw (2).
- Release the screw (3).
- Unlock and disconnect the high-voltage connector (4).
- Set the high-voltage cable (5) aside.
- Loosen screw (1).
- Set aside the vacuum line (2).
- Loosen screws (1).
- Remove the refrigerant lines (2) and set them aside.
- Unlock and disconnect connector (3).
- Loosen screws (1).
- Feed out electric A/C compressor (EKK) (2) upward and remove it.