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Home >> Mercedes Benz >> 2019 >> C300 4Matic, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 355 (Front Axle - 253 Chassis) >> Testing & Repair >> Remove/Install Front Axle Gear - AR33.30-P-0525LWX

Remove/Install Front Axle Gear - AR33.30-P-0525LWX

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Model 205, 253 with transmission 725.0 

with code M005 (Vehicles with 4MATIC/all-wheel drive) 

Shown on front axle transmission 175 

Fig 1: Front Axle Gear/Differential Components Location - Model 253 With Transmission 725.0 With Code M005 (Differential 175 Shown)
G14546974Courtesy of MERCEDES-BENZ USA

Shown on front axle transmission 175 

G14546975Courtesy of MERCEDES-BENZ USA

Shown on front axle transmission 175 

G14546976Courtesy of MERCEDES-BENZ USA
CAUTION Risk of injury  to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.
AS00.40-Z-0001-01A
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 threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
Notice Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
Notice Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVING Remove     
1 Remove propeller shaft to front axle transmission (1) Model 253 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive) AR41.10-P-0070LW
    Model 205 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive) AR41.10-P-0070LWA
2 Remove right front axle shaft   AR33.30-P-0620LW 
3 Remove intermediate shaft   AR33.30-P-0625LWX 
4 Unscrew drain screw and drain hypoid gear oil from front axle differential (1) and collect in suitable container Model 205, 253 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive)  
    With VAG 160 AR33.25-P-0300-01LWX 
5 Remove rack-and-pinion steering   AR46.20-P-0600LW
6 Remove bolts (2, 3a, 3b, 3c) and place front axle differential (1) on front axle    
7 Remove support (4)    
8 Remove front axle transmission (1) in downward direction    
9 Check pilot bushing in oil pan is correctly seated If a problem arises
↓
replace pilot bushing.
 
10 Remove radial shaft sealing rings (5l, 5r) NOTES Do not damage seat of radial shaft sealing rings (5l, 5r).
Otherwise, the front axle differential (1) will be leaky.
IMPORTANTSPECIAL TOOL Connect the internal extractor and SPECIAL TOOL impact extractor to the threaded rod of the SPECIAL TOOL extraction tool.
 
    SPECIAL TOOL Internal extractor Fig 2
    SPECIAL TOOL Extraction tool Fig 7
    SPECIAL TOOL Impact extractor Fig 5
11 Check seat of radial shaft sealing rings (5l, 5r) for damage and galling If a problem arises
↓
Replace front axle differential (1).
 
INSTALLING Install     
12 Moisten sealing lips of new radial shaft sealing rings (5l, 5r) with transmission oil    
REFER TO CAPACITIES & SPECIFICATIONS Universal hypoid gear oils (specification 235.7)   BB00.40-P-0235-07A
13 Install new radial shaft sealing rings (5l, 5r) with drift SPECIAL TOOL VAG 160
Drift set
Fig 4
    SPECIAL TOOL VAG 175
Drift
Fig 6
14 Position front axle transmission (1) on front axle    
15 Install support (4) TORQUE SPECIFICATION Collar bolt, support to oil pan *BA33.30-P-1011-03G 
16 Attach front axle transmission (1) to support (4)   AR33.30-P-0525-06AVG 
    TORQUE SPECIFICATION Collar bolt, front axle differential to support/oil pan *BA33.30-P-1006-03G 
    TORQUE SPECIFICATION Collar bolt, front axle gear to engine support *BA33.30-P-1007-03G 
17 Install rack-and-pinion steering   AR46.20-P-0600LW
18 Screw drain screw into front axle differential (1) With VAG 175
IMPORTANT Replace seal.
 
    TORQUE SPECIFICATION Front axle transmission drain screw *BA33.30-P-1008-03G 
19.1 Fill front axle transmission (1) with hypoid gear oil at front axle shaft opening With VAG 175  
    FLUID SPECIFICATION Hypoid gear oil *BF33.30-P-1001-03F 
    SPECIAL TOOL Hand pump Fig 3
19.2 Fill front axle differential (1) through opening of filling screw with hypoid gear oil With VAG 160 AR33.25-P-0300-01LWX 
    Quick-acting adhesive Omnifit 100H (50 g) *BR00.45-Z-1110-02A 
    Loctite 7063 (400 ml) cleaning spray *BR00.45-Z-1046-04A 
    TORQUE SPECIFICATION Front axle transmission drain screw *BA33.30-P-1008-03G 
    TORQUE SPECIFICATION Front axle transmission filling screw *BA33.30-P-1014-03G 
    FLUID SPECIFICATION Hypoid gear oil *BF33.30-P-1001-03F 
    SPECIAL TOOL Hand pump Fig 3
20 Install intermediate shaft   AR33.30-P-0625LWX 
21 Install right front axle shaft   AR33.30-P-0620LW 
22 Install propeller shaft to front axle transmission (1) Model 253 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive) AR41.10-P-0070LW
    Model 205 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive)
IMPORTANT Only install center and rear lower rear engine compartment paneling again after leak test.
AR41.10-P-0070LWA
WARNING 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
23 Perform engine test run, while checking front axle differential (1) for leak tightness and proper operation    
24 Install center and rear sections of lower engine compartment lining   AR61.20-P-1105LW
FRONT AXLE GEAR

Number Designation Model 205 Model 253
BA33.30-P-1006-03G Collar bolt, front axle differential to support/oil pan Nm 65 65
FRONT AXLE GEAR

Number Designation Model 205 Model 253
BA33.30-P-1007-03G Collar bolt, front axle gear to engine support Stage 1 Nm 5 5
Stage 2 Nm 50 50
Stage 3 ∠° 95 95
FRONT AXLE GEAR

Number Designation Model 205 Model 253
BA33.30-P-1008-03G Front axle transmission drain screw Nm 20 20
FRONT AXLE GEAR

Number Designation Model 205 Model 253
BA33.30-P-1011-03G Collar bolt, support to oil pan Nm 60 60
FRONT AXLE GEAR

Number Designation Model 205 Model 253
BA33.30-P-1014-03G Front axle transmission filling screw M24 Nm 25 25
FRONT AXLE GEAR

Number Designation Model 205 Model 253
BF33.30-P-1001-03F Hypoid gear oil Filling capacity Liter 0, 55 0, 55
Universal hypoid gear oil   BB00.40-P-0235-07A BB00.40-P-0235-07A
Overview of axle gear oils   BB00.40-P-0231-01A BB00.40-P-0231-01A
Axle gear oils   BB00.40-P-0239-72A BB00.40-P-0239-72A
Fig 2: Identifying Internal Extractor (203 589 03 33 00)
G12935553Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Hand Pump (210 589 00 71 00)
G11975242Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Drift Set (205 589 01 15 00)
G12957355Courtesy of MERCEDES-BENZ USA
Fig 5: Identifying Impact Extractor (602 589 00 33 00)
G07694680Courtesy of MERCEDES-BENZ USA
Fig 6: Identifying Drift (221 589 04 15 00)
G07687827Courtesy of MERCEDES-BENZ USA
Fig 7: Identifying Extraction Tool (221 589 04 33 00)
G12937618Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1046-04A Loctite 7063 (400 ml) cleaning spray A 001 986 71 71 09
BR00.45-Z-1110-02A Quick-acting adhesive Omnifit 100H (50 g) A 002 989 23 71