AUTO TRANS DIAGNOSIS - 01M
Article Text
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
ARTICLE BEGINNING
AUTOMATIC TRANSMISSIONS
Volkswagen Type 01M
Cabrio, Golf, Golf III, GTI Jetta, Jetta III, Passat
APPLICATION & LABOR TIMES
APPLICATION & LABOR TIMES
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Vehicle |
|
Labor Times |
|
Trans. |
Application |
(1) R |
& I (2) Overhaul |
|
Model |
1995-96 |
|
|
|
|
Cabrio ............... |
4.4 |
......... 6.3 .... |
01M |
(CLK) |
Golf, GTI & Jetta |
|
|
|
|
4-Cylinder |
|
|
|
|
Gas ................. |
4.4 |
......... 6.3 .... |
01M |
(CLK) |
Turbo Diesel ........ |
4.4 |
......... 6.3 .... |
01M |
(CKZ) |
V6 ................... |
4.4 |
......... 6.3 .... |
01M |
(CLB) |
Passat |
|
|
|
|
4-Cylinder |
|
|
|
|
Gas ................. |
4.9 |
......... 6.3 .... |
01M |
(CLK) |
Turbo Diesel ........ |
4.9 |
......... 6.3 .... |
01M |
(CKZ) |
V6 ................... |
4.9 |
......... 6.3 .... |
01M |
(CLB) |
(1)- Removal and installation of transmission from vehicle chassis.
(2)- On bench overhaul for transmission and differential. DOES NOT include removal and installation.
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IDENTIFICATION
Volkswagen Audi Group (VAG) transaxle type is cast into top of transaxle case, next to ATF cooler. Transaxle code and build date are located on top of transaxle case, next to starter.
DESCRIPTION & OPERATION
Transaxle includes a 4-speed automatic transmission, lock-up torque converter, final drive and solenoid-operated valve body. See Fig. 1. Under normal conditions, all shifts are controlled by a Transaxle Control Module (TCM). See Fig. 2. Fourth gear is an overdrive gear.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 2)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Fig. 1: Cross-Sectional View Of Transaxle Components Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 3)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Fig. 2: Identifying TCM & Shift Lock Electrical Components Courtesy of Volkswagen United States, Inc.
The transmission elements consist of a planetary gear set, one-way roller clutch, 3 apply clutches, 2 brake clutches and a torque converter lock-up clutch. See Figs. 1 and 3.
All 4 forward gears are hydraulically activated. When the lock-up clutch is engaged, the forward gears become mechanically driven by eliminating torque converter slip. The lock-up clutch is
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 4)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
engaged depending on engine load and vehicle speed.
Power from the transmission is connected to the drive pinion through transfer gears. A ring gear and differential assembly are connected to flanges which spin the drive axles.
The electronic control consists of a TCM (located under rear seat), control solenoids, various sensors and switches. The control solenoids direct oil pressure inside the valve body. Solenoid valves No. 1-4 control the apply and brake clutches. Solenoid valves No. 5 and 7 control shift smoothness. Solenoid valve No. 6 is a frequency valve and controls the main hydraulic pressure. The TCM controls the main hydraulic pressure by varying the duty cycle.
The TCM monitors input and output signals. If electrical problems occur, TCM will record faults in TCM memory and may go into fail-safe mode (also known as emergency running mode). If TCM enters fail-safe mode, the transaxle will operate manually in reverse, 1st or 3rd gear. In fail-safe mode, 3rd gear operates with gear selector in 2nd, 3rd or "D". If engine is started with TCM in fail-safe mode, TCM activates 3rd gear hydraulically. The TCM memory can only be read using Scan Tool (VAG 1551) and Adapter (VAG 1551/3).
The TCM also controls shift lock system. This system locks the gear selector in Park or Neutral position unless the brake pedal is pressed. The TCM uses a shift lock control relay to release a gearselector mounted solenoid. See Fig. 2.
Fig. 3: View Of Transaxle Clutch Elements Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 5)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
LUBRICATION & ADJUSTMENTS
NOTE: See appropriate AUTOMATIC TRANSMISSION SERVICING article in TRANSMISSION SERVICING section.
TROUBLE SHOOTING
SYMPTOM DIAGNOSIS
Leak At Torque Converter
Check drive plate clearance, torque converter bushing, oil seal or oil pump assembly. Repair as necessary.
Transaxle Fluid In Coolant
Faulty transaxle oil cooler. Replace transaxle oil cooler and friction plates in transaxle. Clean transaxle.
Transaxle & Differential Oils Mixed
Replace "O" ring and drive pinion seal on inner bearing
support.
Gear Selector Hard To Move
Check gear selector between shifter and transaxle. Repair as necessary. Check parking lock assembly inside transaxle. Repair as necessary.
No Drive In 1st Gear
Check for faulty 1st-3rd apply clutch or reverse brake
clutch.
No Drive In "D", "2" Or "3"
Check for faulty 1st-3rd apply clutch or one-way clutch.
No 2nd Gear In "D", "2" Or "3"
Check for faulty 2nd-4th brake clutch.
No 3rd Gear In "D" Or "3"
Check for faulty reverse apply clutch.
No 4th Gear In "D"
Check for faulty 2nd-4th brake clutch.
No Reverse
Check for faulty reverse apply clutch or reverse brake
clutch.
No Drive In All Forward Gear Positions
Check for faulty 1st-3rd apply clutch, reverse brake clutch or one-way clutch.
Missing Shifts Up Or Down
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 6)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Check valve body for sticking valve(s) or faulty shift solenoid(s).
Erratic Or Harsh Shifts
Short in wiring to shift solenoid(s) or faulty shift solenoid(s). Check for proper throttle angle adjustment. See TECHNICAL SERVICE BULLETINS.
Harsh Shift In One Gear Only
Determine elements involved. Air check elements. Check for faulty shift solenoid or shift valve.
Stuck In Emergency Running Mode
Check for incorrect TCM installed, faulty wiring, bad solenoid electrical strip (inside oil pan) or stuck valve.
Park Lock Will Not Engage
Check for misadjusted selector lever cable. Check for faulty locking mechanism.
Bucking Or Poor Idling
Check throttle housing and air ducts for leaks. Check for possible air entering oil pump pickup.
Excess Engine RPM Drop When Shifting Into 1st Gear
Faulty Powertrain Control Module (PCM).
Engine Starts In Gear Or No Start In Park/Neutral
Check for faulty Park/Neutral safety switch.
Shift Lock Not Holding Selector In Park/Neutral
Check for faulty shift lock solenoid, shift lock mechanism or
bad TCM.
MECHANICAL, HYDRAULIC & ELECTRICAL COMPONENTS
1)If gear selector is stuck in Park or Neutral position, go to SHIFT LOCK SYSTEM under TROUBLE SHOOTING. If gear positions are missing, shift quality is poor or no shifts are possible, ensure all electrical connections are okay and fluid level is correct.
2)If problems are still present, disconnect electrical connector at transaxle. Test drive vehicle. Check if transaxle will operate manually in reverse and 1st gear. Move gear selector to 2nd, 3rd or "D" position. Transaxle should operate in 3rd gear (2nd, 3rd or "D").
3)If transaxle operates as described, problem may be electrical. See ELECTRONIC SELF-DIAGNOSTICS. If transaxle does not operate as described, problem may be mechanical or hydraulic. See ROAD TEST.
NOTE: If transaxle does not operate in manual 1st gear, check 1st-3rd apply clutch and reverse brake clutch for damage or
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 7)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
wear. If transaxle does not operate in manual reverse gear, check reverse apply clutch and reverse brake clutch for damage or wear.
ROAD TEST
WARNING: DO NOT exceed safe or legal speed limits during road test.
1) Road test vehicle with transaxle in "D" range. With vehicle at a speed above kickdown speed, press throttle pedal down and note kickdown shift speeds. Compare kickdown shift speeds to kickdown shift speed specifications. See KICKDOWN SHIFT SPEED SPECIFICATIONS table.
NOTE: In the following table, letter suffix following gear application refers to Hydraulic ("H") or Mechanical ("M") gear operation. Hydraulic or manual gear operation depends on operating mode of torque converter lock-up clutch.
KICKDOWN SHIFT SPEED SPECIFICATIONS
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Application |
Kickdown (MPH) |
4-Cylinder (CLK) |
|
1H-1M ............................................ |
30-34 |
1M-2H ............................................ |
30-34 |
2H-2M ............................................ |
61-65 |
2M-3H ............................................ |
61-65 |
3H-3M ............................................ |
85-89 |
3M-4H ............................................ |
85-89 |
4H-4M ............................................ |
85-89 |
4M-4H ............................................ |
86-83 |
4H-3M ............................................ |
86-83 |
3M-3H ............................................ |
61-57 |
3H-2M ............................................ |
61-57 |
2M-2H ............................................ |
61-57 |
2H-1M ............................................ |
26-22 |
1M-1H ............................................ |
26-22 |
Turbo Diesel (CKZ) .................................. |
(1) |
V6 (CLB) |
|
1H-1M ............................................ |
37-41 |
1M-2H ............................................ |
37-41 |
2H-2M ............................................ |
76-80 |
2M-3H ............................................ |
76-80 |
3H-3M .......................................... |
111-115 |
3M-4H .......................................... |
111-115 |
4H-4M .......................................... |
111-115 |
4M-4H .......................................... |
112-108 |
4H-3M .......................................... |
112-108 |
3M-3H ............................................ |
75-71 |
3H-2M ............................................ |
75-71 |
2M-2H ............................................ |
75-71 |
|
AUTO TRANS DIAGNOSIS - 01M |
|
Article Text (p. 8) |
|
1996 Volkswagen Golf |
|
For Volkswagen Technical Site |
|
Copyright © 1998 Mitchell Repair Information Company, LLC |
|
Thursday, August 19, 1999 11:28PM |
2H-1M |
............................................ 32-28 |
1M-1H ............................................ |
32-28 |
(1) - Information not available from manufacturer.
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2)Connect scan tool and appropriate adapter to diagnostic connector. Select function 08 "READ MEASURING VALUE BLOCK". Test solenoid valves and upshift speeds following scan tool manufacturers instructions.
3)If transaxle does not shift within specified MPH range, and scan tool values are within specification, determine affected elements. See APPLY & BRAKE CLUTCH APPLICATION.
4)If all apply and brake clutch elements are affected, check oil pump, oil filter, cooler lines, solenoid valve No. 6, and condition of torque converter and/or engine. Repair as necessary.
5)If one or more apply and brake clutch elements are affected, remove valve body. Locate appropriate fluid circuit in transaxle case and valve body. Check for leaks and/or blockage. Repair as necessary.
6)If hydraulic circuits are okay, or problems with apply and brake clutch elements are mechanical, repair transaxle.
NOTE: If transaxle does not operate in manual 1st gear, check 1st-3rd apply clutch and reverse brake clutch for damage or wear. If transaxle does not operate in manual reverse gear, check reverse apply clutch and reverse brake clutch for damage or wear.
APPLY & BRAKE CLUTCH APPLICATION
APPLY & BRAKE CLUTCH APPLICATION (1)
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Gear Application |
|
Elements In Use |
1st Gear .......... |
1st-3rd Apply & One-Way |
Clutch Holding |
2nd Gear ................... |
1st-3rd Apply & 2nd-4th Brake |
|
3rd Gear .................... |
1st-3rd & 4th |
Apply Clutches |
4th Gear ....................... |
4th Apply & 2nd-4th Brake |
|
Reverse .................... |
Reverse Apply & Reverse Brake |
|
Park & Neutral ................ |
All Apply & |
Brake Clutches |
|
Released |
Or Ineffective |
(1)- All forward gear elements shown are in "hydraulic-state". Forward gear elements switch to a "mechanical-state"
with the addition of torque converter lock-up clutch apply.
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SHIFT LOCK SYSTEM
Operation
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 9)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
All models are equipped with an electronic shift lock system. TCM controls shift lock system. See Fig. 2. This system locks gear selector in Park or Neutral position unless brake pedal is pressed. TCM uses shift lock control relay to release a solenoid mounted on gear selector assembly.
NOTE: Shift lock relay will not lock gear selector when vehicle speed is greater than 3 MPH.
A mechanical control cable prevents ignition key from being removed unless gear selector is in Park position. With ignition key removed, gear selector locks in Park position.
NOTE: If battery is disconnected or discharged, gear selector can be moved out of Park position by turning ignition key to START position.
Functional Check
1)With ignition key removed, ensure gear selector cannot be moved from "P" position. Insert key in ignition switch.
2)Turn ignition on. Ensure gear selector can only be moved with brake pedal pressed. Move gear selector to "N" position.
3)Without pressing brake pedal, ensure gear selector cannot move out of "N" position. Press brake pedal down. Ensure it is now possible to move gear selector.
4)If shift lock system does not operate as described, adjust gear selector, solenoid and control cable. If shift lock system does not operate after adjustments are made, check shift lock electrical system with Scan Tool (VAG 1551).
5)See testing information under ELECTRONIC SELF-DIAGNOSTICS. See Figs. 10-13. If any problems are found, service harness or components. If no problems are found, TCM may be defective. If shift lock system still does not operate correctly, check for worn or damaged parts and replace as necessary. See Figs. 2 and 4.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 10)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Fig. 4: Exploded View Of Shift Lock & Gear Selector Assembly Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 11)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
NOTE: Perform the following adjustments in order given.
Control Cable Adjustment
Loosen lock screw at gear selector lever on transaxle. Move gear selector in center console to Park position. Ensure front wheels are locked. Tighten cable housing to gear selector lever lock screw.
Shift Lock Solenoid Adjustment
Place gear selector in "N" or "P" position. Loosen shift lock solenoid mounting screws. Insert a .019" (.30 mm) feeler gauge between shift lock solenoid push rod and shift lever. See Fig. 5. If necessary, move shift lock solenoid and tighten screws.
Fig. 5: Adjusting Shift Lock Solenoid
Courtesy of Volkswagen United States, Inc.
Shift Lock Cable Adjustment
1)Move gear selector to "1" position. Remove steering column covers. Turn ignition key to START position and release. Check clearance between shift lock cable lever and ignition switch locking pin.
2)Clearance should be .028" (.70 mm). If clearance is not correct, loosen lock nut on shift lock cable sheath. Position shift lock cable lever to obtain correct clearance. Tighten lock nut. See Fig. 6. Tighten gear selector housing screws and install steering column covers.
Fig. 6: Adjusting Shift Lock Cable
Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 12)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Removal & Installation (Control Cable)
Remove lower cover from center console. Remove circlip from control cable end. Remove exhaust covers. On models equipped with V6 engines, remove catalytic converter. On all models, loosen lock nut and remove control cable from shift lever on transaxle. To install, reverse removal procedure. Adjust control cable. See CONTROL CABLE ADJUSTMENT under SHIFT LOCK SYSTEM.
Removal & Installation (Shift Lock Cable)
1)Remove shift lever handle. Remove center console cover. Disconnect negative battery cable and wait 30 seconds.
2)Using Torx wrench, remove air bag retaining screws from rear side of steering wheel. Lift off air bag unit from steering wheel, and tilt air bag unit downward. Disconnect wiring connector from air bag unit. Remove steering wheel. Remove dash panel.
3)Place gear selector in rear position. Loosen screw holding cable sheath to gear selector support. Remove cable from lever. See Fig. 7.
4)Remove cover from ignition switch. Remove spring clip holding cable housing to ignition assembly. Lift and tilt shift lock cable housing upward. Pull up shift lock cable until shift lock cable unhooks from ignition switch. See Fig. 8.
Fig. 7: Removing Shift Lock Cable From Shift Lever Support Courtesy of Volkswagen United States, Inc.
Fig. 8: Removing Shift Lock Cable From Ignition Switch Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 13)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
5) Remove shift lock cable from under dash near A/C-heater housing and remove from vehicle. To install, position shift lock cable through under-dash panels. See Fig. 9. To complete installation, reverse removal procedure. Adjust shift lock control cable. See SHIFT LOCK CABLE ADJUSTMENT under SHIFT LOCK SYSTEM.
Fig. 9: Routing Shift Lock Cable To Ignition Switch
Courtesy of Volkswagen United States, Inc.
ELECTRONIC SELF-DIAGNOSTICS
RETRIEVING TROUBLE CODES
1)Electronic control consists of a TCM (located under rear seat), control solenoids, and various sensors and switches. TCM monitors input and output signals. See Fig. 2.
2)If TCM detects problems in transaxle-related circuits or devices, TCM may record a trouble code in memory. To retrieve obtain trouble codes, use Scan Tool (VAG 1551) and Adapter (VAG 1551/3). All trouble code and related testing information is contained in scan tool.
TESTING
ELECTRICAL
NOTE: Manufacturer does not provide electrical component tests or specifications. All testing information is contained in Scan Tool (VAG 1551).
1)To isolate TCM circuit problems without a scan tool, circuit resistance and voltage can be checked by using Test Box (VAG 1598/18).
2)When checking circuit voltage, leave battery connected with test box connected to TCM and TCM vehicle harness. When checking circuit resistance, disconnect negative battery cable and connect test
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 14)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
box to TCM vehicle harness. Leave TCM disconnected.
3) Measure voltage and resistance between specified sockets on test box. See Figs. 10-13. If a problem is found, service harness or components as necessary. If no problem is found, TCM may be defective.
Fig. 10: Testing TCM Harness & Components (1 Of 4)
Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 15)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Fig. 11: Testing TCM Harness & Components (2 Of 4) Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 16)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Fig. 12: Testing TCM Harness & Components (3 Of 4) Courtesy of Volkswagen United States, Inc.
Fig. 13: Testing TCM Harness & Components (4 Of 4) Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 17)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
HYDRAULIC PRESSURE
Check operation of apply and brake clutches by air checking fluid passages of valve body and transaxle case. Install Pressure Gauge (VAG 1702) to transaxle pressure tap located near dipstick tube. Check main hydraulic pressure under normal driving conditions. See MAIN PRESSURE table. If main hydraulic pressures are not correct, check for incorrect idle speed, problem with pump or sticking valves in valve body. Repair as necessary.
MAIN PRESSURE
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Application |
|
|
psi (Bar) |
"D" |
|
|
|
Idle RPM ............................... |
49-55 |
(3.4-3.8) |
|
2000 RPM (1) ....................... |
146-164 |
(10.1-11.3) |
|
"R" |
|
|
|
Idle RPM .............................. |
94-109 |
(6.5-7.5) |
|
2000 RPM (1) ....................... |
334-348 |
(23.0-24.0) |
|
(1)- With solenoid valve connector disconnected. After test, reconnect solenoid valves and using appropriate scan tool, erase trouble codes from memory.
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STALL SPEED
CAUTION: DO NOT operate engine at stall speed for more than 5 seconds. If you need to repeat stall speed test, wait 20 seconds.
1)Engage parking brake and block drive wheels. Connect tachometer to engine. Warm engine to normal operating temperature.
2)Firmly press brake pedal. Move gear selector to "D" position. Open throttle to wide open throttle position. Note engine speed and release throttle pedal.
3)Compare measured stall speed with stall speed specification. See STALL SPEED SPECIFICATIONS table. If stall speed is within range, test is complete.
4)If stall speed is up to 200 RPM too low, check engine condition and adjustments. If stall speed is greater than 200 RPM too low, torque converter is faulty. If stall speed is too high, check 1st-3rd apply clutch or one-way clutch for slipping or damage.
STALL SPEED SPECIFICATIONS
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Application |
RPM |
|
CLK |
............................................ |
2600-2900 |
CLB |
& CKZ ...................................... |
2250-2550 |
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AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 18)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
ON-VEHICLE SERVICE
DRIVE AXLE SHAFTS
See appropriate AXLE SHAFTS article in AXLE SHAFTS & TRANSFER CASES section.
OIL COOLER FLUSHING
1)Remove external oil filter. Remove oil lines and allow fluid to drain. Using pressurized solvent, flush remaining fluid and debris from oil lines and cooler. Repeat flushing if necessary.
2)Use pressurized shop air to remove solvent from oil lines and oil cooler. Install a new external oil filter.
TRANSAXLE COMPONENTS
Following components may be serviced with transaxle in vehicle. For removal and installation procedures, see
TRANSAXLE DISASSEMBLY.
*Drive Flanges
*External Oil Filter
*Gear Selector Lever
*Multifunction Switch, Speedometer Drive Shaft & Speed Sensor
*Oil Pan & Valve Body Assembly
*Planetary Gear Cover
REMOVAL & INSTALLATION
See appropriate AUTOMATIC TRANSMISSION REMOVAL article in TRANSMISSION SERVICING section.
TORQUE CONVERTER
1)Remove torque converter. Check torque converter for any wear or damage, and replace if necessary. If torque converter is being reused, drain old fluid.
2)Extract ATF from torque converter using Torque Converter Service Station (VAG 1358 A) and Probe (VAG 1358 A/1).
TRANSAXLE DISASSEMBLY
TRANSAXLE UNIT
1)Remove torque converter. Remove oil pan and valve body assembly. Remove sealing plug from transaxle case. See Fig. 14.
2)Measure and record turbine shaft end play. See Fig. 15. Remove oil pump bolts. Using two M8 bolts, remove oil pump from front of transaxle. See Fig. 16.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 19)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
3)Remove all clutches with support tube, 2nd-4th gear clutch plates, springs and spring caps together. See Figs. 17 and 18.
4)Lock drive shell in place by inserting a screwdriver through hole of large sun gear into side of transaxle case. See Fig. 19. Loosen and remove small planetary drive shaft bolt, washer and shim. See Fig. 20. Remove small planetary drive shaft.
5)Remove large drive shaft and sun gear. Remove Vehicle Speed Sensor (VSS) from transaxle case. Remove supporting tube and one-way clutch circlips. Remove one-way clutch assembly.
6)Remove planetary carrier with dished spring. Remove reverse brake clutch assembly. See Figs. 17, 20 and 21. DO NOT remove input gear assembly, unless bearing or gear damage is present.
Fig. 14: Exploded View Of Oil Pan & Valve Body
Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 20)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Fig. 15: Checking Turbine Shaft End Play
Courtesy of Volkswagen United States, Inc.
Fig. 16: Removing Oil Pump
Courtesy of Volkswagen United States, Inc.
AUTO TRANS DIAGNOSIS - 01M
Article Text (p. 21)
1996 Volkswagen Golf
For Volkswagen Technical Site
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, August 19, 1999 11:28PM
Fig. 17: Exploded View Of Transaxle Components
Courtesy of Volkswagen United States, Inc.
Fig. 18: Removing Turbine Shaft With 2nd-4th Brake Clutch & 1st3rd Apply Clutch
Courtesy of Volkswagen United States, Inc.
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