01M Shift Kit 1995-2004, new and ready to install. Fits the 01M. Ships fast from the USA.
If your Jetta, Golf, GTI, New Beetle or Cabrio automatic bangs into gear, locks the converter so hard the engine almost stalls, or slurs the 1-2 shift once it is warm, the problem is often worn hydraulics inside the 01M valve body rather than the clutches. This is the TransGo SK VW-01M kit for 1995-2004 01M valve bodies. It goes after the pressure regulator and lockup circuits that wear out on these units, and it installs with the transmission still in the car.
The 01M is a fully electronic four-speed. The control module shifts it with seven solenoids, and the N93 pressure control solenoid sets line pressure through the pressure regulator valve. On high-mileage units the regulator valve wears its aluminum bore, pressure leaks past it, and the system responds with excessive or runaway line pressure. That is what produces harsh engagements and rough shifts, and it overworks the clutches at the same time.
TransGo's instructions list what the SK VW-01M kit addresses: engine dying when the selector goes into gear, rough lockup, a soft 1-2 shift, a 2-3 cut-loose, and excessive or runaway pressure. The kit contains:
Run a scan before opening the pan. A failed solenoid or a bad internal harness will put the 01M into its third-gear emergency mode, and TransGo itself notes that many solenoid electrical codes come from the harness. A shift kit cannot fix that. If you have stored solenoid faults, follow How to Test a Transmission Solenoid with a Multimeter first. When the codes are clean and the complaint is shift feel, read Shift Flare vs Slip to sort a hydraulic flare from a burnt clutch. Lockup that stalls the engine or shudders points to the converter clutch circuit, which our converter clutch shudder guide covers.
The listing covers the VW 01M four-speed automatic from 1995 through 2004. That covers Mk3 and Mk4 Jetta and Golf, GTI, Cabrio and New Beetle automatics, plus the early Passat that used the 01M. There is an important catch. TransGo states this kit fits valve bodies with a round filter hole and will NOT fit valve bodies with the other filter hole shape, so check the filter opening on your valve body before you buy. The instructions also show three timing valve layouts (1st, 2nd and 3rd type), and the kit covers all three. Send us your year and VIN if you are unsure. If your valve body is too worn to save, the 01M valve body for 1999-2005 is a complete replacement.
Drop the pan, remove the filter, unplug the internal harness with the supplied tool, and take off the valve body. Working one valve at a time:
Refill with the VW-specified ATF, G 052 162 A2 per published 01M data, and run an adaptation reset and road test. If shifts are too bumpy after relearn, TransGo says to back the adjuster off three notches; if they are soft or flare, turn it in three notches. Because harness faults are common, many installers replace the 01M internal wiring harness while the valve body is out, and the 01M seven-piece solenoid kit is worth adding if any coil reads out of spec.
| Fits | 01M 1995-2004 |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Ships | From the USA |
| Warranty | 1-year |
It is made for 1995-2004 01M valve bodies with a round filter hole. TransGo says it will not fit valve bodies with the other filter hole shape, so look at the filter opening before you order. If you are unsure, send us your year and VIN.
No. The kit installs with the valve body removed from below after you drop the pan. It is detailed valve body work, though, so an experienced technician is recommended.
Usually not. Third gear only is the 01M emergency mode, triggered by an electrical fault such as a failed solenoid or a damaged internal harness. Scan for codes and test the solenoids first. This kit addresses pressure and shift feel problems, not electrical faults.
That complaint is on TransGo's list for this kit. It comes from the converter clutch applying when it should not, and the kit replaces the lockup bushing and valve that control it. Check fluid level and condition as well.
Yes. The boost regulator adjuster sets shift firmness. The starting depth is .915 in. After the relearn and a road test, back it off three notches if shifts are too bumpy, or turn it in three notches if they are soft or flare.
Use the VW-specified ATF for the 01M (G 052 162 A2), fill to the correct level at the specified temperature, then reset the transmission adaptation with a scan tool and road test before tuning the adjuster.
