S70 T5 L5-2.3L Turbo VIN 53 B5234T3 (1998)
Seal holes in heater housing by installing pop rivets, P/N979878-6.
Seal the filed holes with silver tape, P/N 277063-4, 60 x 15 mm (23/8" x 5/8").
Install the tape so that it covers both sides of the edge.
Discard the power diode and reinstall other removed components.
3
Finishing
Check that the blower tan functions at all fan settings.