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Home >> Mercedes Benz >> 2024 >> GLA250 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Electrical System, Equipment & Instruments (2 Of 3) -- 118 Chassis) >> Testing & Repair >> Repair Electric Coupling On ESP (R) Hydraulic Unit Wiring Harness - AR54.18-P-0018MFA

Repair Electric Coupling On ESP (R) Hydraulic Unit Wiring Harness - AR54.18-P-0018MFA

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Model 117, 118, 176, 177, 243, 246, 247 

Example illustration 

G16050490Courtesy of MERCEDES-BENZ USA
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice  Notes on crimping   AH00.19-P-1000-09A
REMOVING Remove     
1 Disconnect ground line from battery. Model 118, 177, 243, 247 AR54.10-P-0003MFA 
    Model 117, 176, 246 AR54.10-P-0003NKB
2 Release and disconnect electric coupling at ETS/ASR/ESP® hydraulic unit. Model 117, 176, 246 AR42.40-P-0816NKB
    Model 118, 177, 243, 247 AR42.40-P-0816MFA
  Repair     
3 Repair electric coupling or defective contact as per approved repair methods. Repair wiring harness by crimping (with watertight connections) AR00.19-P-0100-04A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
    IMPORTANT For the repair, use only the "MCP" contact family approved for this connection.
IMPORTANT If twisted lines are twisted for the repair, make sure that they are then twisted again up to the contact.
IMPORTANT Only perform repair on contacts with single-wire seal (ELA).
IMPORTANT Repair max. 10 contacts.
IMPORTANT This repair is prohibited for a seal concept with mat seal.
 
    SPECIAL TOOL MCP 2.8_ELA crimping set Fig 2
    SPECIAL TOOL MCP 1.2_ELA crimping set Fig 1
    SPECIAL TOOL MCP 2.8_ELA crimping set Fig 5
    SPECIAL TOOL MCP 2.8_ELA crimping set Fig 4
    SPECIAL TOOL Wire stripper Fig 8
    SPECIAL TOOL Crimp pliers Fig 3
    SPECIAL TOOL Wiring harness repair kit, basic Fig 7
    SPECIAL TOOL New passenger car wiring harness repair kit Fig 6
INSTALLING Install     
4 Connect and lock electric coupling at ETS/ASR/ESP® hydraulic unit. Model 117, 176, 246 AR42.40-P-0816NKB
    Model 118, 177, 243, 247 AR42.40-P-0816MFA
5 Connect ground line to battery. Model 118, 177, 243, 247 AR54.10-P-0003MFA 
    Model 117, 176, 246 AR54.10-P-0003NKB
INSPECT Check     
6 Connect diagnostic system and check wheel speed in ESP actual values using diagnostic system.    
REFER TO SELF-DIAGNOSTIC SYSTEMS   Model 118, 177, 243, 247 AD00.00-P-2000-06MFA
REFER TO SELF-DIAGNOSTIC SYSTEMS   Model 117, 176, 246 AD00.00-P-2000-04A
    NOTES Perform this test very carefully.
Otherwise, if signals are mixed up, there is a risk of death for the vehicle occupants.
IMPORTANT i Perform a function test on the basis of the wheel speed following each repair.
IMPORTANT To do so, turn each wheel and ensure that it matches the wheel turned.
 
Fig 1: Identifying MCP 1.2_ELA Crimping Set (220 589 04 99 10)
G16050491Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying MCP 2.8_ELA Crimping Set (000 589 13 99 10)
G16050492Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Crimp Pliers (220 589 01 99 10)
G12618320Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying MCP 2.8_ELA Crimping Set (220 589 01 99 80)
G13654390Courtesy of MERCEDES-BENZ USA
Fig 5: Identifying MCP 2.8_ELA Crimping Set (220 589 01 99 81)
G16050495Courtesy of MERCEDES-BENZ USA
Fig 6: Identifying New Passenger Car Wiring Harness Repair Kit (220 589 04 99 00)
G12618299Courtesy of MERCEDES-BENZ USA
Fig 7: Identifying Wiring Harness Repair Kit, Basic (000 589 13 99 00)
G16050497Courtesy of MERCEDES-BENZ USA
Fig 8: Identifying Wire Stripper (220 589 01 99 40)
G12618937Courtesy of MERCEDES-BENZ USA