Remove/Install DC/DC Converter For 48 V On-Board Electrical System - AR54.10-P-1351MFA
Model 118, 177, 247
with code B01 (48V technology)
Fig 1: DC/DC Converter For 48 V On-Board Electrical System Components Location - Model 118 With Code B01 (Shown With Engine 282.8)
Shown with engine 282.8
| Risk of injury
to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. |
Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Notes on coolant level | AH20.00-P-1142-01CW | ||
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Remove/install | |||
| 1 | Disconnect ground line of 12-volt on-board electrical system battery. | AR54.10-P-0003MFA | |
| 2 | Release and disconnect electrical connectors at ME control unit. | Model 118, 177, 247 with engine 282 with code B01 (48V technology) | AR07.08-P-1000MFD |
| Model 118 with engine 260 as of model year 2023 with code B01 (48V technology) |
AR07.08-P-7011MFA | ||
| Model 177, 247 with engine 260 as of model year 2022 with code B01 (48V technology) |
|||
| 3 | Remove air filter housing. | Model 118, 177, 247 with engine 260 with code B01 (48V technology) | AR09.10-P-1150MFC |
| Model 118, 177, 247 with engine 282 with code B01 (48V technology) | AR09.10-P-1150MFD | ||
| 4 | Unclip electric line from cover (2). | ||
| 5 | Unscrew screws (3) and take off cover (2). | *BA54.10-P-1015-01D | |
| 6 | Remove trim (1). | ||
| 7 | Seal coolant lines (4) with clamping devices and disconnect. | AR20.20-P-7441-01RQ 1 | |
| Fig 4 | |||
| Fig 5 | |||
| 8 | Remove positive lines (5) from DC/DC converter (48 V) control unit (N83/12). | *BA54.10-P-1013-01D | |
| 9 | Remove ground line (6) from DC/DC converter (48 V) control unit (N83/12). | *BA54.10-P-1014-01D | |
| 10 | Release and disconnect electrical connector (7). | ||
| 11 | Unscrew screw (8) and remove DC/DC converter control unit (48 V) (N83/12). | *BA54.10-P-1016-01D | |
| 12 | Install in the reverse order. | ||
| 13 | Correct coolant and bleed engine cooling system. | Model 118, 177, 247 with engine 260, 282 with code B01 (48V technology) | AR20.00-P-1142-04A |
| *BF20.00-P-1001-04A | |||
| Fig 6 | |||
| Fig 2 | |||
| Fig 3 | |||
| Fig 7 | |||
| 14 | Commission DC/DC converter (48 V) control unit (N83/12). | ||
| AD00.00-P-2000-06MFA |
BATTERY
| Number | Designation | Model 118 | Model 177 | |
|---|---|---|---|---|
| BA54.10-P-1013-01D | Nut, positive line to DC/DC converter for 48 V on-board electrical system | Nm | 16 | 16 |
BATTERY
| Number | Designation | Model 247 | |
|---|---|---|---|
| BA54.10-P-1013-01D | Nut, positive line to DC/DC converter for 48 V on-board electrical system | Nm | 16 |
BATTERY
| Number | Designation | Model 118 | Model 177 | |
|---|---|---|---|---|
| BA54.10-P-1014-01D | Nut, ground line to DC/DC converter for 48 V on-board electrical system | Nm | 16 | 16 |
BATTERY
| Number | Designation | Model 247 | |
|---|---|---|---|
| BA54.10-P-1014-01D | Nut, ground line to DC/DC converter for 48 V on-board electrical system | Nm | 16 |
BATTERY
| Number | Designation | Model 118 | Model 177 | |
|---|---|---|---|---|
| BA54.10-P-1015-01D | Screw, cover to DC/DC converter for 48 V on-board electrical system | Nm | 8 | 8 |
BATTERY
| Number | Designation | Model 247 | |
|---|---|---|---|
| BA54.10-P-1015-01D | Screw, cover to DC/DC converter for 48 V on-board electrical system | Nm | 8 |
BATTERY
| Number | Designation | Model 118 | Model 177 | |
|---|---|---|---|---|
| BA54.10-P-1016-01D | Screw, DC/DC converter for 48 V on-board electrical system to holder | Nm | 8 | 8 |
BATTERY
| Number | Designation | Model 247 | |
|---|---|---|---|
| BA54.10-P-1016-01D | Screw, DC/DC converter for 48 V on-board electrical system to holder | Nm | 8 |
COOLANT MIXING RATIO
| Number | Designation | All engines, except engine 178 in model 190.381 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-04A | Coolant mixing ratio | Antifreeze/water | Up to -25°C | % | - |
| Up to -37°C | % | 50/50 | |||
| As of -38°C | % | 55/45 | |||
| Overview and specifications sheet | BB00.40-P-0310-01A | ||||
| References to sheet specification | BB00.40-P-0310ZZ | ||||