Remove the front intake pipe
WARNING:
Working on 12 V electrical system
.
Risk of short circuits! Risk of fire!
Risk of short circuits! Risk of fire!
- Make sure that there is no charger connected to the jump start terminal in the engine compartment.
- Detach battery ground lead from battery.
- For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.
CAUTION:
Refrigerant circuit under high pressure
.
Injury hazard!
Injury hazard!
- Note and follow safety instructions on containers.
- Avoid contact with refrigerant; wear safety goggles and hand protection.
- For additional information see: HANDLING REFRIGERANT R1234YF or HANDLING TETRAFLUORETHANE REFRIGERANT R134A and NOTES FOR REPAIR WORK ON AIR CONDITIONING
NOTE:
RISK OF DAMAGE
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS) .
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults .
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS) .
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults .
- Detach battery terminal from battery pole by carefully shifting to and fro. Do not pry off using a tool.
Preliminary work
- Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to SUCTIONING THE AIR CONDITIONING .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING THE DME CONTROL UNIT .
- Refer to REMOVING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
- Refer to REMOVING THE CONTROL UNIT HOLDER .
CAUTION:
Residual pressure in the heating and air conditioning system
.
Injury hazard!
Injury hazard!
- Wear safety goggles and protective gloves when disconnecting the refrigerant line.
- Close the refrigerant lines with seal plugs.
- Carefully slide the coolant hose (1) slightly to the side.
- Loosen screws (2) .
- Guide out and remove the intake pipe (3) .