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Home >> Mercedes Benz >> 2015 >> GLA250 Base >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission - 156 Chassis >> Testing & Repair >> Remove/install axle shaft radial shaft seals - AR27.40-P-0210NKB

Remove/install axle shaft radial shaft seals - AR27.40-P-0210NKB

TRANSMISSION 724.0 in MODEL 117 

TRANSMISSION 724.0 in MODEL 156 

TRANSMISSION 724.0 in MODEL 176 

TRANSMISSION 724.0 in MODEL 242 

TRANSMISSION 724.0 in MODEL 246 

Fig 1: Radial Shaft Sealing Ring & Transmission
G10250278Courtesy of MERCEDES-BENZ USA
IMPORTANT Notes on automatic transmission   AH27.19-P-0001-01NKB
REMOVINGINSTALLING Remove/install     
1 Remove bottom engine compartment paneling TRANSMISSION 724.0 with ENGINE 133 when removing the right front axle shaft.  
MODEL 117, 156, 176 with ENGINE 133 with TRANSMISSION 724.0
MODEL 117, 156, 242, 246 with ENGINE 270 with TRANSMISSION 724.0
MODEL 156 with ENGINE 651 with TRANSMISSION 724.0
AR61.20-P-1105NKB
MODEL 117, 176, 246 with ENGINE 607 with TRANSMISSION 724.0
MODEL 117, 176, 246 with ENGINE 651 with TRANSMISSION 724.0
AR94.30-P-5300NKB
2 Drain transmission oil    
REFER TO MAINTENANCE     AP27.00-P-2702NK 
3 Remove respective front axle shaft   AR33.30-P-0620NKB
4 Remove intermediate pipe between catalytic converter at bottom and rear exhaust system TRANSMISSION 724.0 in MODEL 117, 156, 176 with ENGINE 133  
  AR49.10-P-7100MTA
5 Detach heat shield from crankcase and axle shaft bearing housing When removing the radial shaft sealing ring (1) at right front axle shaft.  
6 Pry radial shaft sealing ring (1) out of transmission (27) using a suitable tool NOTES
Do not damage seat surface of radial shaft sealing ring (1).
This ensures that the radial shaft sealing ring (1) remains leaktight and is seated correctly.
INSTALLATION IMPORTANT Coat sealing lip of radial shaft sealing ring (1) with transmission oil.
 
SPECIAL TOOL Drift Fig 2
INSPECT Check     
7 Check seat cushion of radial shaft sealing ring (1) NOTES
Before inserting the new radial shaft sealing ring (1) check the seat surface for damage. This ensures that the radial shaft sealing ring (1) remains leaktight and is seated correctly.
 
8 Install in the reverse order    
9 Check oil level of transmission (27) and correct if necessary   AR27.00-P-0100NKB 
DANGER Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
10 Perform engine test run and check that transmission (27) is not leaking and is functioning correctly    
Fig 2: Identifying Drift (711 589 19 15 00)
G10250279Courtesy of MERCEDES-BENZ USA