01M Solenoid Kit 1995-05, remanufactured and ready to install. Fits the 01M. Ships fast from the USA.
The 01M is the four-speed automatic behind most automatic Mk3 and Mk4 Jettas, Golfs, GTIs, Cabrios and New Beetles from 1995 to 2005, and it is famous for one failure mode: the car suddenly refuses to shift out of third, the gear display lights every position at once, and the module stores a solenoid fault. This listing is a remanufactured set of all seven 01M valve body solenoids for that 1995-05 run, as pictured, at a price that makes replacing the full set cheaper than chasing one code at a time.
The 01M has no throttle valve cable and no governor. The transmission control module decides every shift and fires seven solenoids on the valve body, numbered N88 through N94. Five are simple on/off solenoids that route oil to the shift valves and clutches. The other two, N91 and N93, are pulse-width modulated: N91 controls converter lockup, and N93 is the pressure control (EPC) solenoid that sets line pressure for every apply. In the photo you can tell them apart by face: the five on/off units have the triangular valve tip, and the two modulated units have the flat round brass cap. When any of these coils drift out of range, the module loses confidence in what the hydraulics are doing and drops the transmission into its third-gear failsafe to protect it.
Do the electrical checks first, because not every 01M solenoid code is a solenoid. In a Transmission Digest case study on a 1998 Jetta, the solenoids were measured at the TCM connector: N88 through N92 and N94 should read 55 to 65 ohms, while N93, the EPC solenoid, should read 4.5 to 6.5 ohms. One solenoid was shorted at 4.7 ohms, yet the previous shop had already replaced two solenoids and the internal harness and the codes came straight back, because a second fault elsewhere in the car was involved. Wikipedia's 01M entry also notes that aging terminals between the valve body and the module can add enough resistance to trigger limp mode on their own. Our guide to testing a transmission solenoid with a multimeter covers the resistance check, and if the solenoids test good but the circuit does not, look at the 01M internal wiring harness instead.
Listed for the 01M from 1995 through 2005. Per Wikipedia, that covers the Cabrio, Jetta, Golf, GTI and New Beetle with the automatic, and only the 1995-1997 transverse-engine Passat. The 1998 and later B5 Passat uses a different five-speed transaxle and is not a fit. Check the three-letter transmission code stamped above the starter flange to confirm you have an 01M, and compare the connector colors and tip shapes on your old solenoids to the photo. If you are unsure, send us your year, model and VIN. You can find more 01M parts on our hard parts page.
| Fits | 01M 1995-05 |
| Part type | Solenoid Kit |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
No. Only the 1995-1997 transverse-engine Passat used the 01M. The 1998 and later B5 Passat uses a different five-speed automatic, so this set does not fit it.
Measure resistance at the transmission connector. In the Transmission Digest 01M case, N88 to N92 and N94 should read 55 to 65 ohms and the N93 pressure control solenoid 4.5 to 6.5 ohms. A reading well outside those ranges points to a solenoid; a good reading at the solenoid but bad at the module points to wiring.
That is the 01M failsafe. Solenoid faults are a common cause, but corroded terminals, a damaged internal harness and speed sensor signal problems trigger the same mode, so read the stored codes and test the circuits before buying parts.
Use VW G 052 162 A2 or an approved equivalent. The level is checked from under the car through the check plug with the engine running and the fluid at about 35 to 38 C.
Only if the solenoid bores are worn or the valves stick. Inspect the bores when the valve body is out. If they are scored or the new solenoids still trigger codes, a replacement valve body is the right repair.
