TT Quattro Coupe L4-1.8L Turbo (AWP) (2001)
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Select the diagnosis function "04 - Basic settings" from the menu -1-.
Display on VAS 5051:
1
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Enter display group
(figures up to 255)
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Using the keypad -2-, enter "056" to select Display group 056 and confirm entry with Q button.
Display on VAS 5051:
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Check whether the engine speed shown in display zone -1-(actual engine speed) is within the specified tolerance range.
Display Group 056
NOTE:
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The value shown in display zone 1 is the actual engine speed.
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The value shown in display zone 2 (specified engine speed) is a theoretical value calculated by the engine control module.
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When the engine is idling the engine control module tries constantly to adjust the actual engine speed so that it matches the specified value.
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This means that the actual engine speed when idling should always be approximately the same as the specified engine speed.
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Display zones 3 and 4 provide additional information which is not relevant when checking the idling speed.