S4 Quattro Sedan V6-2.7L Turbo (APB) (2000)
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Using a round file, round over sharp outer edges of the inner groove and outer edge of control module -arrows- (around the entire periphery of
control module) to a maximum radius of 0.5 mm (approx. 0.02 in.).
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Using 120 grit emery cloth, finish outer edges of the inner groove and outer edge of control module -arrows- (around the entire periphery of control
module).
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After rework is finished, clean shavings and any accumulated dirt/oil film from outer and inner surfaces of control module using air pressure and
solvent (brake cleaner works well).
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For heavier deposits of dirt / oil film, apply Wynn's(R) X-Tend(R) V.I.C. Combustion Chamber Cleaner: Part No: 61510 (U.S.), Part No: 61512
(CAN.) on a soft clean cloth then, clean interior surfaces using this cloth (one can of cleaner will do many vehicles, therefore it is considered shop
supply).
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Clean the interior surfaces of throttle valve control module -J338- housing with a soft clean cloth.
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Reinstall Throttle Valve Control Module
-J338- using a new gasket (see table).
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Fastener torque = 10 Nm. +/- 1 Nm.