S4 V8-4.2L (BHF) (2004)
Valve Body: Service and Repair
Mechatronics Unit, Removing and Installing
Mechatronics unit, removing and installing, 09L, 6 Spd. A/T AWD
Note:
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Always replace mechatronics unit if contaminated or faulty.
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General repair instructions.
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Read the rules for cleanliness when working on the automatic transmission.
Removing
CAUTION: Follow steps required when disconnecting battery.
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With ignition switched off, disconnect battery Ground (GND) strap.
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Remove oil pan.
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Remove ATF strainer.
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Disconnect 16-pin electrical connector - 2 - at transmission by folding out release tab and turning fastener cap counterclockwise.
Note:
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- Item 1 - can be disregarded.
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Touch vehicle Ground (GND) with your hand (without gloves) to discharge any static electricity.
CAUTION:
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Before touching or removing the mechatronics unit, always discharge any static electricity by touching vehicle Ground (GND) or other Ground
(GND) object with your hand.
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Never touch contacts in 16-pin connector by hand, as static discharge would damage the control module and mechatronics unit.
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Unfasten retaining clip - arrow - for wiring harness connector on outside of transmission housing.