LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2016 >> G550 >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle - 463 Chassis >> Testing & Repair >> Determine Shims - AR35.25-P-0650-03GWX

Determine Shims - AR35.25-P-0650-03GWX

Model 463.234 

up to model year 2019 with code ZQ0 (G 500 4x4 2  ) 

Model 463.255 

up to model year 2019 

with code MUK2 (USA or Canada vehicle model designation) 

with code ZQ0 (G 500 4x4 2  ) 

Model 463.274 

up to model year 2019 

with code LQ0 (G650 Landaulet) 

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
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1132-06A LUKOIL TRANSMISSION MN TM-4/5 75W-90 OOO LLK-International, Moscow, Russia

Measurement of housing depths 

  1. Measure housing depth (A) at bearing seat of inner housing (12).

    IMPORTANT Measure from upper edge of housing to seat of bearing shell.

    IMPORTANTCommercially available tools 

    Digital vernier caliper.

  2. Measure housing depth at bearing seat of external housing.

    IMPORTANT Measure from upper edge of housing to seat of bearing shell.

    IMPORTANTCommercially available tools 

    Digital vernier caliper.

    G13668054Courtesy of MERCEDES-BENZ USA

    Measure height of relay spur gear assembly (24) 

    NOTES Do not confuse the bearing shells of the bearings (23, 25).

    This shortens service life and compromises the function of component parts.

    If the bearing shells of the bearings (23, 25) are mixed up, replace the bearings (23, 25) completely.

  3. Oil bearings (23, 25) of assembled spur gear (24) with oil.
  4. Place entire assembly (23, 24, 25) on a suitable, absolutely level and clean surface.
  5. Exert light pressure by hand from above on the bearings (23, 25) and rotate the relay spur gear (24).

    IMPORTANT So that the bearings (23, 25) settle.

  6. Measure height of assembly (23, 24, 25), dimension (B).

    IMPORTANTCommercially available tools 

    Digital vernier caliper.

    Repeat operation steps  5 and  6 until the same dimension (B) is measured in two consecutive measurements.

    G13668055Courtesy of MERCEDES-BENZ USA

    Determine required dimension of shims 

    Housing depth of inner housing + housing depth of external housing = overall housing dimension; hereafter denoted by "C". Overall housing dimension (C) - height of spur gear assembly (B) = installed dimension; hereafter denoted by "D".

    Installed dimension (D) + bearing preload (0.15 mm) = overall installed dimension; hereafter denoted by "E".

    Determine dimension of shims. To do this, round the overall installed dimension (E) up/down based on the second decimal place. Example: 

    • Determined value (E): 0.01 mm: Round down to: 0.00 mm.
    • Determined value (E): 0.02 mm: Round down to: 0.00 mm.
    • Determined value (E): 0.03 mm: Round up to: 0.05 mm.
    • Determined value (E): 0.04 mm: Round up to: 0.05 mm.
    • Determined value (E): 0.05 mm: Use determined value (E).
    • Determined value (E): 0.06 mm: Round down to: 0.05 mm.
    • Determined value (E): 0.07 mm: Round down to: 0.05 mm.
    • Determined value (E): 0.08 mm: Round up to: 0.10 mm.
    • Determined value (E): 0.09 mm: Round up to: 0.10 mm.
    • Determined value (E): 0.10 mm: Use determined value (E).

    To obtain the determined dimension (E) as accurately as possible, measure the shims prior to installation and combine them if necessary.

    IMPORTANTCommercially available tools 

    Digital vernier caliper.