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Home >> Mercedes Benz >> 2025 >> GLA250 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Crank Assembly -- 247 Chassis >> Testing & Repair >> Remove/Install Retaining Lock For Crankshaft/Ring Gear >> Remove/Install Retaining Lock For Crankshaft/Ring Gear - AR03.30-P-5000MFG

Remove/Install Retaining Lock For Crankshaft/Ring Gear - AR03.30-P-5000MFG

Engine 139 in model 118, 177, 247 

G16048258Courtesy 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
Topical note  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
INSTALLING Install     
1 Remove transmission. Engine 139 in model 118, 177, 247 with transmission 724.1 AR27.10-P-0009MFA
2 Check toothing of ring gear at flywheel for wear and damage. If there are problems:

Replace flywheel.
AR03.30-P-8001MFG 
3 Insert retaining lock (1) in crankcase until this engages in starter ring gear and then secure via screws. SPECIAL TOOL Retaining lock Fig 1
REMOVING Remove     
4 Remove fixing bolts and remove retaining lock (1). SPECIAL TOOL Retaining lock Fig 1
5 Install transmission. Engine 139 in model 118, 177, 247 with transmission 724.1 AR27.10-P-0009MFA
Fig 1: Identifying Retaining Lock (270 589 03 40 00)
G14688288Courtesy of MERCEDES-BENZ USA