Perform Protective Earth Conductor And Insulation Resistance Test - AR54.10-P-0019-01LVH
Model 253.354/954
| Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | AS00.00-Z-0035-01A | |
| General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system | AH00.00-Z-0300-01A | ||
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| Notes on battery | AH54.10-P-0001-01A |
| Number | Designation | Model 253 with code ME02 (Fuel cell) | Model 253 with code ME05 (Hybrid drive 85 kW-94 kW variant (including plug-in)) | |
|---|---|---|---|---|
| BA54.10-P-1004-02H | Screw/bolt, potential equalization line to high-voltage battery | Nm | 16 | 16 |
| Number | Designation | Model 253 with code ME02 (Fuel cell) | Model 253 with code ME05 (Hybrid drive 85 kW-94 kW variant (including plug-in)) | |
|---|---|---|---|---|
| BA54.10-P-1005-02H | Nut, potential equalization line to body | Nm | 16 | 16 |
| Number | Designation | Model 253 with code ME02 (Fuel cell) | Model 253 with code ME05 (Hybrid drive 85 kW-94 kW variant (including plug-in)) | |
|---|---|---|---|---|
| BA54.10-P-1012-02H | Bolt, protective earth conductor to charger | Nm | - | 9 |
| Number | Designation | Model 253 with code ME02 (Fuel cell) | Model 253 with code ME05 (Hybrid drive 85 kW-94 kW variant (including plug-in)) | |
|---|---|---|---|---|
| BA54.10-P-1013-02H | Screw/bolt, potential equalization line to charger | Nm | 9 | 9 |
The resistance/insulation resistance measurement should only be performed after the vehicle has been de-energized.
Otherwise, the test results may be falsified.
The resistance/insulation resistance measurement on the high-voltage component must never be performed between HV+ (positive) and HV- (negative).
The high-voltage component can otherwise be damaged.
A resistance/insulation resistance tester is used for the measurement.
Carefully connect the probes of the resistance/insulation resistance tester to the high-voltage connections.
Otherwise the high-voltage connections may be damaged.
- Check that testing tools are functioning properly in accordance with specifications from manufacturer.
- Check protective earth conductor line (3) at attachment point of high-voltage battery charger (1) for tight seating
.
- Check potential equalization line (4) of high-voltage battery charger at body ground point and attachment point on high-voltage battery charger (1) for tight seating
- Check potential equalization line (5) of high-voltage battery at body ground point and high-voltage battery (2) attachment point for tight seating
Conduct resistance/insulation resistance measurement of HV-AC circuit-1-phase (vehicle socket as measuring point) charger feed-in socket (X58/23)
5-pin charger feed-in socket (X58/23)
7-pin charger feed socket (X58/23)
- Calibrate resistance/insulation resistance tester.
- Open socket flap in bumper with the diagnostic system.
When the vehicle has been de-energized, the socket flap can only be opened using the diagnostic system.
- Set resistance/insulation resistance tester to resistance testing mode.
- Perform resistance test using resistance/insulation resistance tester between protective earth conductor (PE) and ground point in luggage compartment.
If the ground fault circuit interrupter integrated in the charging cable or the ground fault circuit interrupter of the external power supply has been triggered.
- Perform insulation resistance test using resistance/insulation resistance tester between phase L1 (L1) and protective earth conductor (PE).
If the ground fault circuit interrupter integrated in the charging cable or the ground fault circuit interrupter of the external power supply has been triggered.
- Perform insulation resistance test using resistance/insulation resistance tester between neutral conductor (N) and protective earth conductor (PE).
If the ground fault circuit interrupter integrated in the charging cable or the ground fault circuit interrupter of the external power supply has been triggered.