Remove/install coolant line - AR20.20-P-7441MEV
ENGINE 780.009 in MODEL 451.391/491 For electric motor drive
| Risk of death when touching components on vehicles with high-voltage on-board electrical system | Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not carry out any work on high-voltage on-board electrical systems. | AS54.00-Z-0001-01A | |
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| Note on the voltage on-board electrical system | AH54.00-P-0010-01A | ||
| Note on high-voltage battery | AH54.10-P-0006-01MEV | ||
| Remove/install | |||
| 1 | Remove transmitter key and mains plug | ||
| 2 | Carry out enabling of high voltage system | Only for removing coolant lines (2, 3, 4). | AR54.10-P-1160MEV |
| 3 | Remove high voltage charger control unit (N24/3) | Only for removing coolant lines (3, 4). | AR54.10-P-5106MEV |
| 4 | Drain coolant | AR20.00-P-1143MEV | |
| 5 | Loosen screw clamp (5) from the coolant line (1) | ||
| 6 | Loosen clamp (6) from the coolant line (1) | Figure | |
| 7 | Detach coolant line (1) from cooler (7) and from the electric drive and high voltage charger coolant pump (M46) | ||
| 8 | Disconnect high-voltage line (10) from high voltage charger control unit (N24/3) | ||
| 9 | Disconnect quick coupling (8) from the coolant line (2) from high voltage charger control unit (N24/3) | ||
| 10 | Loosen clamp (9) from the coolant line (2) | Figure | |
| 11 | Detach coolant line (2) from radiator (7) | ||
| 12 | Loosen clamp (11) from the coolant line (3) | ||
| 13 | Detach coolant line (3) from the electric drive and high voltage charger coolant pump (M46) | ||
| 14 | Disconnect quick coupling (12) from the coolant line (3) from drive electric motor (M5) | ||
| 15 | Disconnect quick coupling (13) from the coolant line (4) from drive electric motor (M5) | ||
| 16 | Install in the reverse order |