Correct Articulation Angle On Rear Axle Differential - AR41.10-P-0086-12MFG

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Model 118, 177, 247 with engine 139

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

Notice	Notes on self-locking nuts and bolts	AH00.00-P-0001-01KOA
	000 588 23 62 00 Mounting plate	WS26.00-P-0415B
	000 588 24 62 00 Major assembly mount	WS01.00-P-0253B

CHECK VALUES FOR PROPELLER SHAFT ARTICULATION ANGLE

Number	Designation			Model 118, 177, 247
BE41.10-P-1003-01D	Inclination angle from rear propeller shaft to rear axle differential	(∠3)	∠°	-1, 0...-0, 15

REAR AXLE GEAR

Number	Designation			Model 118	Model 177
BA35.31-P-1002-07A	Bolt, rear axle differential to rear axle carrier at rear (multi-link axle)	M14	Nm	150	150

REAR AXLE GEAR

Number	Designation			Model 247
BA35.31-P-1002-07A	Bolt, rear axle differential to rear axle carrier at rear (multi-link axle)	M14	Nm	150

Courtesy of MERCEDES-BENZ USA

Correct articulation angle at rear (∠3)

To correct the articulation angle on the rear axle differential (1), suitable adjusting plates (2) are available as a replacement part set.

The replacement part set contains 3 adjusting plates (2) and therefore it has 6 different setting options (3 adjusting plates (2) times 2 alignments) in 1 mm steps. A 1 mm change to the adjusting plate (2) causes a change in angle of 0.2°.

Support rear axle differential (1) with support plate and major assembly mount.
Remove bolt (3).
Remove adjusting plate (2).
Install corresponding adjusting plate (2) according to correction.
Install adjusting plate (2) exactly on bearing.

Otherwise damage will occur.
Manually slightly tighten screw (3).
Tighten screw (3) .
Remove support plate and major assembly mount from rear axle differential (1).
Example for calculating ratio of angle change to adjusting plates (2)

The articulation angle between the propeller shaft and the rear axle differential (1) should be -0.6°, but +0.2° is measured. An adjusting plate (2) with 2 notches at top (-1.5 mm) is already inserted in the vehicle.

Required correction to articulation angle: (-0.6°) - (+0.2°) ⁼ -0.8°→ 4 mm change required for smaller articulation angle → insert new adjusting plate (2) with 3 notches at bottom.

Remove installed adjusting plates (2) with 2 notches at top (-1.5 mm) and replace with adjusting plate (2) with 3 notches at bottom (+2.5 mm). This is equivalent to the required total change of 4 mm.
1. notch at top: -0.5 mm (+0.1°)
2. notches at top: -1.5 mm (+0.3°)
3. notches at top: -2.5 mm (+0.5°)
1. notch at bottom: +0.5 mm (-0.1°)
2. notches at bottom: +1.5 mm (-0.3°)
3. notches at bottom: +2.5 mm (-0.5°)