A synthetic fluid is poured into the automatic transmission, the English name is Automatic Transmission Fluid. It serves as a lubricant and transmission control. ATF must be approved by Audi, and Audi only allows ATF with designation ESSO LT 71141. This ATF is available from the spare parts warehouse under part number G052 152 162 A1 or A2.
Unlike previous models, the A4 does not have an ATF dipstick. Today, checking the ATF level has become a time-consuming procedure carried out in the workshop, which can only be carried out using the VAG 1551 fault reader for memory, only it can determine the exact temperature of the oil in the gearbox. It is she who is crucial for the correct oil level, since ATF expands greatly under the influence of temperature.
Therefore, checking the ATF level is carried out only in the workshop. The fluid level is only checked every 30,000 km. Exception: a heavily oiled gearbox housing calls for an early inspection!
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