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Home >> Mercedes Benz >> 2025 >> GLA250 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Crank Assembly -- 247 Chassis >> Testing & Repair >> Remove/Install Flywheel/Drive Plate >> Remove/Install Flywheel/Drive Plate - AR03.30-P-8001MFG

Remove/Install Flywheel/Drive Plate - AR03.30-P-8001MFG

Engine 139 in model 118, 177, 247 

Fig 1: Flywheel/Drive Plate Components Location - Engine 139 In Model 247
G16048260Courtesy of MERCEDES-BENZ USA
CAUTION 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 self-locking nuts and bolts   AH00.00-P-0001-01KOA
Notice  Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
REMOVINGINSTALLING Remove/install     
1 Remove transmission.   AR01.10-P-2401MFG
2 Remove crankshaft Hall sensor.   AR15.12-P-2136MFG
3 Install retaining lock for crankshaft/starter ring gear.   AR03.30-P-5000MFG 
4 Release bolts (1). NOTES Do not use an impact wrench/driver or a similar compressed air tool to unfasten the screw/bolts (1).
Otherwise, damage to the crankshaft will occur.
INSTALLATION IMPORTANT Replace bolts (1) and uniformly tighten in a diagonal pattern.
TORQUE SPECIFICATION Bolt, two-mass flywheel/drive plate to crankshaft
*BA03.30-P-1002-01CA 
5 Unscrew bolts (1) and remove flywheel/drive plate (2). IMPORTANT Aid of helper required.
INSTALLATION IMPORTANT Dowel pin of crankshaft determines installation position.
 
6 Check rear radial shaft sealing ring (3) for leaks. If there are problems,

Replace rear radial shaft sealing ring (3).
AR03.20-P-3064MFG 
7 Install in the reverse order.    
FLYWHEEL, DRIVE PLATE, VIBRATION DAMPER, STARTER RING GEAR

Number Designation Engine 139
BA03.30-P-1002-01CA Bolt, two-mass flywheel/drive plate to crankshaft Stage 1 Nm 45
Stage 2 ∠° 90