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Home >> Mercedes Benz >> 2025 >> GLA250 Base >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Electrical System - Engine -- 247 Chassis >> Testing & Repair >> Tighten Alternator Screws/Bolts - AR15.40-P-0002-01MFA

Tighten Alternator Screws/Bolts - AR15.40-P-0002-01MFA

Engine 260, 282, 608 

Engine 654 in model 118, 177, 247 

ALTERNATOR

Number Designation Engine 282
BA15.40-P-1001-01V Bolt, alternator to major assembly carrier/crankcase Stage 1 Nm 8
Stage 2 Nm 20
ALTERNATOR

Number Designation Engine 260 Engine 608
BA15.40-P-1001-01W Screw, alternator to timing case/major assembly carrier Stage 1 Nm 8 8
Stage 2 Nm 20 20
INTEGRATED STARTER ALTERNATOR

Number Designation Engine 260 Engine 282.8
BA15.40-P-1003-02C Bolt, starter alternator to major assembly carrier/crankcase Nm 20 20
ALTERNATOR

Number Designation Engine 654 in model 118, 177, 247
BA15.40-P-1004-01Q Screw, alternator to major assembly carrier/oil filter Stage 1 Nm 8
Stage 2 Nm 20

IMPORTANT

It is absolutely essential to follow the tightening sequence.

  1. Tighten the upper and lower screw of the alternator slightly be hand.
  2. Tighten upper screw of alternator to stage 1.

    Engine 282

    TORQUE SPECIFICATION Engine 654 in model 118, 177, 247

    TORQUE SPECIFICATION Engine 260

    Engine 608

    TORQUE SPECIFICATION Engine 260

    Engine 282.8

    TORQUE SPECIFICATION

  3. Tighten lower screw of alternator to stage 1.

    Engine 282

    TORQUE SPECIFICATION Engine 654 in model 118, 177, 247

    TORQUE SPECIFICATION Engine 260

    Engine 608

    TORQUE SPECIFICATION Engine 260

    Engine 282.8

    TORQUE SPECIFICATION

  4. Tighten upper screw of alternator to stage 2.

    Engine 282

    TORQUE SPECIFICATION Engine 654 in model 118, 177, 247

    TORQUE SPECIFICATION Engine 260

    Engine 608

    TORQUE SPECIFICATION Engine 260

    Engine 282.8

    TORQUE SPECIFICATION

  5. Tighten lower screw of alternator to stage 2.

    Engine 282

    TORQUE SPECIFICATION Engine 654 in model 118, 177, 247

    TORQUE SPECIFICATION Engine 260

    Engine 608

    TORQUE SPECIFICATION Engine 260

    Engine 282.8

    TORQUE SPECIFICATION