SK ® O9G
(Also Fits TF60SN)
    Reduces/Corrects/Prevents
Harsh Shifts, Cut-Loose, Rough Coasting
Downshifts, Slow Pressure Rise, TCC slip.
     Good news! No need to buy a $1200
     Valve Body to FIX these complaints.
                                                                   N91
Fits: Audi A2, A4 06 2.0L, Audi TT 03-04 1.8L
       BMW Mini Clubman 08 1.6L                                      N93
       BMW Mini Cooper 02 1.6L
       VW Beetle 05 1.8-2.5L, Jetta 05 1.9-2.5L
       Passat 06 2.0L & 3.6L, Touran 03 1.6-2.0L             N89
                                                             N88
  N88-89 are 11-13 ohms On-off type solenoids.
  Remove, clean and test them. If ok, set them                            N92
  aside. No repair work is needed on them.
  All other solenoids are PWM type and are 5-7                            N282
  Ohms. ID mark each solenoid and return
  them to their original location after doing the
  repair work on the following pages.                                    N283
  Read instructions thoroughly before starting!
                                                                         N90
  Mr. Shift ®
  Have a nice Day!
14 Sept 2018                                        Page 1                       © TransGo 2018
Solenoid Disassembly and Correction:
Hold it! If your VB is equipped with small body solenoids, skip pages 2 & 3.
Replacement end caps provided only fit large body Solenoids. (Approx. 1.110 Dia.)
                                                                                                                           Armature
Step 1
Check solenoid resistance first! Solenoid
resistance should be 5-7 ohms between Connector
Pins. Checking from either Pin to Solenoid Body
must be open. If Solenoid fails either check                                                           Brass washer
Solenoid will need replacing.
                                                                                            Step 3
    Step 2                                                                                  Remove Armature &
    Grind crimp until end cap falls off.                                                    washer. Grind Body flush
    Use side of bench grinding Wheel.                                                       with inner step.
                                                                                                                       Finished
          End Cap
               Crimp                          Crimp removed
                                                                             Inner Step
   Step 4
     Measure the Shaft.
   .156-157 use long drill
   .154-155 use short drill                            Step 5
     Use selected drill in                             Turn Drill counter clockwise by hand
     Step 5.                                           insert it all the way into Solenoid.
                                                       While holding the Drill turn the Solenoid
                                                        both directions for 15 seconds.
                                                       Turn the drill counter clockwise &
                                                       remove the drill.
14 Sept 2018                                              Page 2                                                   © TransGo 2018
Step 6                                                  Step 8
After resizing Solenoid Bushings clean out              Lay a narrow bead of Red Thread locker
debris with brake clean & blow out with air.            around the end of Solenoid Body. Keep Thread locker
Install Armature & stroke while spraying Sol            away from inside of Solenoid. Position new end Cap
Valve with Brake cleaner.                               on Solenoid.
                                                           Remember!!!
                                                           Install Armature &                     New end Cap
                                                           washer before
                                                           Installing end Cap!
                                                        Step 9
                                                        Stand Solenoid on end
                                                        cap. Place deep 1/2” drive
                                                        3/4” socket over Solenoid
                                                        Snout. Lightly tap the
                                                        Socket to seat the
 Step 7                                                 Solenoid into the Cap.
 Hold Solenoid upside down,
 Armature must fall out.                                 Socket needs to rest
 If not perform Step 5 again.                            on Solenoid Body
                                                    Fixed Solenoid
                                                                                     Grind bump off
                                                                                     on all linear
                                                                                     Solenoid
                                                                                     Connectors
14 Sept 2018                                   Page 3                                            © TransGo 2018
                                                       Step 10
                                                       Separator Plates
           B                                           Enlarge 3 holes A- .041                                          B
                                                                                                     A
                                                       Enlarge 8 holes B- .046
                    B                                                                                A
                                       A               Enlarge 1 hole C- .076
                B                                          After drilling recheck by
                        B                                  counting the holes drilled.
                                  B
          B                                                                                                                     B
                                                           Use care when drilling!
     C                                                     Look twice drill once!                            Step 11
               A                                                                                              Install New Bushing &
                                                                                                              Valve Assembly
                                                                                                                                      Retainer
                                                                                                               Re-use
Note: Enlarging these holes allows for the normal wear
in solenoid to valve control circuits and creates a more              This ends the repair work. The following pages are for reference
positive signal between solenoids and valves. These                   use. If your VB differs from what is shown, re-install as found and
are NOT clutch circuit feed holes to make firmer shifts!              call us with the model information. Thank you. The Tech Team
14 Sept 2018                                                   Page 4                                                     © TransGo 2018
Valve Body Reference Data                                                     Inner Spring
                                                        .991x.618x.092        1.024x.398x.060
                                                        60lbs@.695            25lbs@.695
                                                                                                                          1.039x.618x.079
                                                                                 B2                                         32lbs@.695
                                                                                                                     K1
                                                                                 K3                                            1.039x.618x.079
                   B1 Pressure                                                                                                   32lbs@.695
                   Limit Valve                          1.039x.618x.079       Inner spring
N93 Sol Pressure                                        32lbs@.695            1.063x.412x.056
                                                                              18lbs@.695                            K2
Limit.                     Cooler Limit
                                                                                                                            Inner spring
                                                                                                                         1.063x.412x.056
                                                   TCC Reg    794x380x027                                                  18lbs@.695
                                                   987x314x041
                                                     N92 Solenoid
                                                      Regulator
               .212 Ball
                   1.039x.618x.079
                   32lbs@.695                                                                   .425x.368x.050
                                                                                                12lbs@.298
                                                                 K3-B1 .250
                   Inner spring                                  check ball
                   1.063x.412x.056                                                                               1.112x.249x.027 2-6@.716
                   18lbs@.695
                                          LP
                                                                                                                    1.079x.271x.025 2-0@.623
                                               1.087x.270x.024 2-0@.610
                                                                      .610x.247x.025 6oz@.540
14 Sept 2018                                                                                                                © TransGo 2018
 Z                                                                                                      Valve Body
                                                                   B2 control Valve
                                                                                                       Reference Data
                                     .610x.247x.025 6oz@.540       .377x.162x.018
                                                                   6oz@.330
                         Use 2 Long bolts in
                         “Z” locations as guides                                                   K3 Regulator
                         to align the main VB                                           .800x.325x.042 4-8@.590
                         sections before
                         tightening any bolts!                                                                                  N90
                                                                                                    B1 Regulator
                                                                                         .746x.249x.037 4-8@.585
                                     K2 clutch acc                                                                              N283
                                     check valve.                                                K2 Regulator
                                                                                      .737x.257x.035 3-0@.585
                       Z                                                                                                   N282
                                                                                                 K1 Regulator
                                                                                      .804x.324x.035 4-4@.482
                        .377x.162x.018 6oz@.330                                                                           N92
                                                                                           Lube limit valve- (Not all models)
                    Pressure regulator
                    1.432x.518x.045 5-12@.737                                            .620x.245x.037 5-6@.453
                                                                                                  N93
                           Secondary PR Valve
Pay attention to           1.500x.412x.048 7-5@932
Retainer position
before removing!            Sol regulator N88-90/N282-
Re-install as               N283 .983x.314x.042 8-6@.616
                                                                                                   N91
found.
                                                                                            Keep solenoids in OE location.
                                          Cooler bypass
                                         .555x.248x.042 9lb@.453
14 Sept 2018                                                                                                      © TransGo 2018
VB Reference Data
                                                        Z
                                                              TCC switch valve
                                                            1.062x.277x.022 1-8@.432
                                                            1.014x.323x.028 2-10@.422
                         B1 switch Valve
                     1.041x.324x.028 2-12@.395
         End plug:
         Long end                                                          Z = Alignment Bolt Holes
         outboard.
                         1.066x.269x.026 2-0@.628
                        1.078x.272x.026 2-8@.555
                       1.095x.250x.030 1-14@.786
                                                                    1.109x.250x.028 2-4@.718
                       1.074x.271x.027 1-14@.627
                                                                    1.111x.298x.030 3-5@.515
                     1.105x.293x.030 3-4@.547                  .212 Ball
                     4-5-6 Relay Valve
                                                    Z   .610x.247x.025 6oz@.540
14 Sept 2018                                                                               © TransGo 2018