A8L Quattro Sedan V8-4.2L (AKB) (2002)
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Fluid - A/T: Testing and Inspection
The ATF level -3- is correct if, at an ATF temperature of 30 - 45°C (86 - 113°F) for normal temperature areas or for hot regions: 50°C (122°F), there is
still a slight escape of fluid through the filler plug hole -2- (the oil rises when it is heated).
Test Requirements
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Transmission not in "mechanical backup" mode
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ATF temperature no higher than 401C (1041F) at start of testing
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Selector lever in "P" position
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Engine running at idle (closed throttle position)
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A/C and heat off
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Vehicle standing on level ground
NOTE:
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Only ATF with the designation ESSO LT 71141 (color: clear yellow) can be added.
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Additives cannot be used.
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Checking the ATF level when the temperature is too low will lead to overfilling.
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Checking the ATF level when the temperature is too high will lead to under-filling.
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Overfilling or under-filling the ATF impairs the function of the transmission.
CAUTION: Part numbers are listed here for reference only. Always check with your parts supplier for the latest information.
CAUTION: Always wear safety glasses.
Procedure
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Hang filled ATF reservoir VAG 1924 as high as possible on vehicle (e.g. on radiator grille).
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Put selector lever in "P" position and run engine at idle (closed throttle position).
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Place drain pan under transmission oil pan to catch spilled fluid.
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The ATF temperature is measured using the VAG 1551 Scan Tool (ST) as follows:
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Connect VAG1551 scan tool. See: Powertrain Management/Computers and Control Systems/Testing and Inspection
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Press button -1- to select "Rapid data transmission" operating mode 1.
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Press buttons -0- and -2- to insert "Transmission Electronics" address word 02.
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Press -Q- button to confirm input.
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Press arrow button.
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Press buttons -0- and -8- to select "Read Measuring Value Block" function 08.
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Press -Q- button to confirm input.
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Press buttons -0-, -0- and -4- to input display group number 004.
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Press -Q- button to confirm input.
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Indicated on display.
The ATF temperature is indicated (in °C) in display field 1.
