S4 Quattro Wagon V8-4.2L (BHF) (2008)
![background image](/audi/s4_quattro_wagon/v8-4.2l_(bhf)/Page-980004.png)
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Make settings on hot-air blower as shown in illustration, i.e. set temperature potentiometer - 2 - to max. heat output and two-stage air flow switch -
3 - to position 3.
‹› Then use hot-air blower to heat thread of catch into which shear bolts are screwed. This operation is designed to reduce the inhibiting action of the
locking fluid on the shear bolt thread to make it easier to screw out the shear bolts afterward.
CAUTION!
Heating the thread of the catch also greatly increases the temperature of the shear bolts and protective enclosure components. Take care
to avoid burns. Make sure that only the thread is heated and none of the surrounding components if at all possible (these should be
covered if necessary).
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Move nozzle - 1 - of hot-air blower toward thread of catch such that nozzle "surrounds" thread. Allow nozzle to rest on upper end of protective
enclosure.