Seat Temperature Control Module: Service and Repair

Removing And Installing Control Unit For Seat Heating

Technical values







Removing control unit for seat heating







1. Release covers -Arrows A- and remove front seat rail cover caps -Arrows B-.







2. Release covers -Arrows C- and remove rear seat rail cover caps -Arrows D-.







3. Move front left seat back and up as far as possible. Move the backrest fully forward.
4. Unclip the front seat trim forwards -Arrow A-.







5. Fold the carpet sections forward and unscrew both fastening screws -Arrows 1-.







6. Fold the seat back as far as possible. With the seat in its folded position ( -Arrow B- ), move the seat forward again using the fore-and-aft adjustment ( -Arrow C- ).







7. Release the connector -Arrow A- and pull it off -Arrow B-.







8. Release the control unit -Arrows A- and remove it to the rear -Arrow B-.







Installing control unit for seat heating

1. Push in control unit -Arrow A- until locking hooks are felt to engage -Arrows B-.







2. Push in connector -Arrow A- until locking tab is felt to engage -Arrow B-.







CAUTION: Risk of material damage to screw connections for seat and seat frame.
- The fastening screws for seat and seat frame are coated and must be replaced after being unscrewed.
- Before screwing in the new fastening screws, clean the thread holes with an M10 x 1.5 tap.

3. Move seat in folded position backwards ( -Arrow A- ) and fold forward ( -Arrow B- ).







4. Screw in fastening screws -Arrows 1-. Tightening torque: 45 Nm (33 ftlb.)







5. Fold back the carpet sections.
6. Clip in front seat trim -Arrow C-.







7. Push cover caps onto the rear seat rails -Arrows A- and press down the covers -Arrows B- until they engage audibly.







8. Push cover caps onto the front seat rails -Arrows C- and press down the covers -Arrows D- until they engage audibly.







Test plan for the seat heating