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Planetary gear, disassembling and assembling

NOTE:
  • General repair notes → Note for this article .
  • Rules of cleanliness for working on automatic transmissions → Rules of cleanliness for working on automatic transmissions .
  • Coat O-rings and sealing rings with ATF or Vaseline. Other lubricating substances lead to functional problems in the hydraulic transmission control.
  • Attach mount and adjustment shims only with Vaseline. Other lubricating substances lead to functional problems in the hydraulic transmission control.


Disassembling

CAUTION: Wear protective glasses.
Fig 1: Identifying ATF Drain Plug And ATF Level Inspection Plug
GW00006290Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Observe disposal regulations.
  • Rest of ATF remains in the oil pan.
Fig 2: Transfer Case Bolts
GW00027043Courtesy of VOLKSWAGEN UNITED STATES, INC.
CAUTION: Carefully and slowly pull transfer case housing off of transmission toward rear. The Torsen differential could otherwise fall out of the transmission.
Fig 3: Removing/Installing Torsen Differential At Input Shaft
GW00006293Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 4: Seal In Front Final Drive Intermediate Flange, Replacing
GW00006231Courtesy of VOLKSWAGEN UNITED STATES, INC.
CAUTION:
  • Slowly and carefully remove intermediate flange for front final drive from transmission housing. The spur gears can otherwise fall out of the transmission.
  • Do not reinstall spur gears that have fallen out. When spur gears have fallen out, transmission must be replaced.
Fig 5: Intermediate Pinion And Drive Pinion
GW00027044Courtesy of VOLKSWAGEN UNITED STATES, INC.
CAUTION:
  • The intermediate pinion - - is built symmetrically but must be reinserted in the same position to maintain running direction.
  • Therefore, mark installed position of intermediate pinion or note whether marking on ring gear faces transmission or toward rear.
Fig 6: Input Shaft Discs
GW00027045Courtesy of VOLKSWAGEN UNITED STATES, INC.
  1. Adjustment shim
  2. Roller bearing
  3. Thrust washer with cone (cone faces transmission)
NOTE:
  • All three elements are pre-determined and may not be replaced with just any other element.
Fig 7: Pulling Out Bearing For Intermediate Pinion Using Kukko Extractor Kukko 21/6 And Kukko Support Kukko 22/2
GW00027046Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Bearing for intermediate shaft is pulled off so that bolts for clutch "F" with "free-running hub 1st gear" are accessible.
Fig 8: Flange Shaft Bolt
GW00006151Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 9: Installing Cover For Front Final Drive, Tightening Sequence
GW00006172Courtesy of VOLKSWAGEN UNITED STATES, INC.
CAUTION:
  • Slowly and carefully remove differential cover from transmission housing. The Torsen differential could otherwise fall out of the transmission.
  • A differential that has fallen out must not be reinstalled. When differential has fallen out, transmission must be replaced.
  • Make sure that bearing rings and adjustment shims for differential do not fall out of transmission housing and differential cover.
  • Bearing rings and adjustment shims that have fallen out cannot be relocated with workshop equipment.
Fig 10: Removing/Installing Differential
GW00006297Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 11: Removing/Installing Left Drive Flange Mounting Bracket
GW00006157Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 12: Locating Securing Ring For Protective Tube On Left Transmission Side
GW00027047Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • On transmission housings without a cast groove for positioning the screwdriver, a cast groove can be ground afterward using an electric grinder.
  • Remove metal shavings.
Fig 13: Pressing Protective Tube From Differential Side, Sideways Out Of Transmission Using A Suitable Drift
GW00027048Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 14: ATF Oil Pan Bolts
GW00027049Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 15: ATF Strainer bolts
GW00027050Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 16: Securing Ring For Wiring Harness Connector
GW00027030Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 17: Valve Body Bolts
GW00027031Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Only loosen bolts with bigger bolt head - arrows  -.
  • When loosening other bolts, the function of the valve body can be influenced or the valve body splits up.
  • Note the different lengths of the bolts.
CAUTION: Do not place removed valve body on Transmission Input Speed (RPM) Sensor G182 on rear side of valve body. Danger of damage.
Fig 18: Clutch ATF Oil Tube "E"
GW00027051Courtesy of VOLKSWAGEN UNITED STATES, INC.
CAUTION:
  • As there is the danger of soiling, it is recommended to replace all ATF oil tubes → Oil tubes  , remove shift rod to do so → Shift rod, removing and installing .
  • ATF clutch oil tube "E" must always be replaced when "Tower II" is removed.
Fig 19: Securing Rings, Coil Springs And Sealing Sleeve
GW00027052Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 20: Caps For Threaded Connection Of ATF Supply At Bottom Of Converter Housing
GW00027053Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 21: ATF Supply Bolts
GW00027054Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 22: Puller Spindle And Knurled Bolts
GW00027055Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 23: Adjustment Shim And Axial Needle Bearing
GW00027056Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 24: Removing/Installing Tower "II"
GW00027057Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 25: Tower "II" Placed On Mounting Device T10283
GW00027058Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 26: Tower "I" Circlip
GW00027059Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 27: Removing/Installing Tower "I" Using Shop Crane VAS 6100
GW00027060Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 28: Tower "I" Placed In Mounting Device T10282
GW00027061Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 29: Transmission Bolts
GW00027062Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 30: Locating Clutch "F"
GW00027063Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 31: Clutch "F" O-Ring And Guide Pins T10273
GW00027064Courtesy of VOLKSWAGEN UNITED STATES, INC.

Assembling

NOTE:
  • Always replace seals, gaskets and O-rings.
  • Coat O-rings and sealing rings with Vaseline. Use only Vaseline, other lubricating substances cause functional problems in the hydraulic transmission control.
Fig 32: Guide Pins T10273 Inserted Into Bores On Transmission Housing
GW00027065Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 33: Transmission Bolts
GW00027062Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • The transmission housing determines the type of bolts used - arrows 1  - (countersunk screw or oval head bolt).
  • For installing, always use the same type of bolt which was found during disassembly.
  • Always replace oval head bolts.
  • Always use countersunk screws for screwed connections - arrows 2  -.

Tightening sequence for transmission with countersunk screws.

Fig 34: Transmission Bolts Tightening Sequence (1 Of 2)
GW00027066Courtesy of VOLKSWAGEN UNITED STATES, INC.
Stage Tightening
I
  • Tighten countersunk screws in sequence - 1 to 12  - to 23 Nm.
Fig 35: Transmission Bolts Tightening Sequence (2 Of 2)
GW00027067Courtesy of VOLKSWAGEN UNITED STATES, INC.

Tightening sequence for transmission with oval head bolts and countersunk screws

Stage Tightening
I
  • Tighten bolts - - and - 12  - to 12 Nm.
II
  • Tighten oval head bolts in sequence - 1 to 10  - to 13.2 Nm.
III
  • Tighten oval head bolts in sequence - 1 to 10  - 65 ° further using rigid wrench.
IV
  • Tighten countersunk screws - 11  - and - 12  - to 23 Nm.
Fig 36: Measuring Tower "I" Position
GW00027068Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • If dimension - - is not reached, tower assembly "I" must be checked → Assembling tower "I" .
Fig 37: Locating Fitted Keys
GW00027069Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 38: Tower "I" Placed In Mounting Device T10282
GW00027061Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 39: Oil Bores On Cylinder "D/E" Face
GW00027070Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 40: Removing/Installing Tower "I" Using Shop Crane VAS 6100
GW00027060Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 41: Freewheel Splines In Cylinder "F" Engaged In Splines Of Ring Gear Of Planetary Bar
GW00027071Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 42: Tower "I" Circlip
GW00027059Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 43: Rotating Input Shaft
GW00027072Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 44: Needle Bearing For Tower "II" Placed On Cylinder "C" Of Tower "I"
GW00027073Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 45: Clutch Plate "C" Positioned Vertically Using Measuring Tongue Of Caliper Gauge
GW00027074Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 46: Thrust Washer For Needle Bearing Inserted In Tower "II" At Bottom
GW00027075Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 47: Tower "II" Placed On Mounting Device T10283
GW00027058Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 48: Removing/Installing Tower "II"
GW00027057Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 49: Measuring Projection Of Upper Edge Of Tower "II" To Contact Surface For ATF Pump
GW00027076Courtesy of VOLKSWAGEN UNITED STATES, INC.

If dimension - - is exceeded, parts of the transmission are not inserted correctly - repeat installation.

Fig 50: Needle Bearing Placed On Tower "II"
GW00027077Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 51: Locating Rectangular Rings On Input Shaft Of Tower "II"
GW00027078Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 52: Locating Shim
GW00027079Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 53: Rectangular Rings On Stator Shaft
GW00027080Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 54: ATF Supply O-Ring
GW00027081Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 55: Puller Spindle And Knurled Bolts
GW00027055Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 56: ATF Supply Bolts
GW00027054Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 57: Measuring Axial Clearance On Input Shaft
GW00027082Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 58: Locating Shim
GW00027079Courtesy of VOLKSWAGEN UNITED STATES, INC.

Available adjustment shims:

Shim thickness in mm
1.4 2.0 2.6
1.6 2.2  
1.8 2.4  

If specified value is again not obtained:

Fig 59: Caps For Threaded Connection Of ATF Supply At Bottom Of Converter Housing
GW00027053Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 60: Securing Rings, Coil Springs And Sealing Sleeve
GW00027052Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 61: Clutch ATF Oil Tube "E"
GW00027051Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Do not cant ATF oil tube when driving in.
Fig 62: Transmission RPM And Retaining Clamps
GW00027032Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Retaining tabs must be engaged.
CAUTION:
  • Replace damaged holding clips.
  • Route wiring harness as shown in figure.
  • In case of deviations, the wiring harness can be pinched and damaged during installation of the valve body.
Fig 63: Position Valve Body On Transmission Housing While Inserting Notched Disc Pins -1- Into Selector Slide Groove -2-
GW00006343Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 64: Valve Body Bolts
GW00027031Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Note different length of bolts. Allocation:
Position   Quantity Bolt length
- Arrow  - = 15 M6x60
- Arrow A  - = 5 M6x30
- Arrow B  - = 1 M6x55 (chromated, silver)
Fig 65: Valve Body Bolt Tightening Sequence
GW00027083Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 66: Location Of Transmission Harness Connector and Connector O-ring
GW00006344Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 67: Securing Ring For Wiring Harness Connector
GW00027030Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 68: ATF Strainer bolts
GW00027050Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 69: ATF Oil Pan Bolts
GW00027049Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Clean magnets (4x) in oil pan.
  • Ensure full surface contact of the magnets in the oil pan.
Fig 70: Transmission Housing O-Ring On Differential Side
GW00027084Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 71: O-Ring Positioned On Protective Tube
GW00027085Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 72: Locating Securing Ring For Protective Tube On Left Transmission Side
GW00027047Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 73: Removing/Installing Circlip And Seal At Grooved Ball Bearing
GW00006158Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Disregard - arrow A  -.
Fig 74: Removing/Installing Left Drive Flange Mounting Bracket
GW00006157Courtesy of VOLKSWAGEN UNITED STATES, INC.
CAUTION:
  • Make sure that bearing rings and adjustment shims for differential do not fall out of transmission housing and differential cover.
  • Bearing rings and adjustment shims that have fallen out cannot be relocated with shop equipment.
Fig 75: Differential Cover O-Ring
GW00006171Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 76: Removing/Installing Differential
GW00006297Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 77: Installing Cover For Front Final Drive, Tightening Sequence
GW00006172Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 78: Flange Shaft Bolt
GW00006151Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 79: Intermediate Pinion Roller Bearing
GW00027086Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 80: Cover Splines On Input Shaft (To Prevent Damage To Gasket)
GW00006345Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Disregard - arrow B  -.
Fig 81: Input Shaft Discs
GW00027045Courtesy of VOLKSWAGEN UNITED STATES, INC.
  1. Adjustment shim
  2. Roller bearing
  3. Thrust washer with cone (cone faces transmission)
NOTE:
  • All three elements are pre-determined and may not be replaced with just any other element.
Fig 82: Intermediate Pinion And Drive Pinion
GW00027044Courtesy of VOLKSWAGEN UNITED STATES, INC.
CAUTION:
Fig 83: Centering Sleeves Present In Intermediate Flange
GW00027087Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Apply thin coat of axle oil on sealing surface before installing gasket to avoid slipping of the gasket.
CAUTION: When installing the intermediate flange to the input shaft carelessly, the sealing lip of the sealing ring - arrow  - can be damaged.
Fig 84: Seal In Front Final Drive Intermediate Flange, Replacing
GW00006231Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • When tightening bolts by hand, make sure the housing gap between intermediate flange for front final drive and transmission housing decreases evenly all around.
NOTE:
  • Apply thin coat of axle oil on sealing surface before installing gasket to avoid slipping of the gasket.
Fig 85: Removing/Installing Torsen Differential At Input Shaft
GW00006293Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 86: Transfer Case Bolts
GW00027043Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • When tightening bolts by hand, make sure the housing gap between transfer housing and transmission housing decreases evenly all around.
Fig 87: Transmission Bolts
GW00027062Courtesy of VOLKSWAGEN UNITED STATES, INC.

Tightening torques

Component Nm
Bolts - arrows 1  - Countersunk 23
  Oval head 16.2 + 65 ° * See note
Bolts - arrows 2  - Countersunk 23
ATF supply on transmission housing 10
Valve body at transmission housing 8
ATF filter on valve body 6
ATF oil pan on transmission housing 11
Mounting bracket for left drive flange on transmission 23
Differential cover on transmission 23
Right drive flange 25
Intermediate flange on transmission 23
Transfer housing on transmission 23

*Replace bolts.