TT Quattro Coupe L4-1.8L Turbo (AWP) (2001)
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Disconnect connectors:
1 - for solenoid valves (10-pin connector)
2 - for road speed sender -G68-
All vehicles:
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Unbolt coolant pipe retainer from coolant pipe flange on left of cylinder head.
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Disconnect hose (leading to oil cooler) from coolant pipe.
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Remove crankcase breather pipe.
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Unbolt coolant pipe retainer from cylinder block.
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Disconnect hose (leading to coolant expansion tank) from coolant pipe (right).
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Unbolt coolant pipe retainer from tensioning element for ribbed belt.
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Pull tapered collar off oil dipstick tube.
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Disconnect wires/unplug connectors as follows:
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Knock sensor I -G61-
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Engine speed sender- G28 (middle, gray)
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Knock sensor II -G66-
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Take connectors out of retainer.
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Unscrew oil pipe leading to turbocharger and unbolt retainer for oil pipe (both are attached to the oil filter bracket).
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Unbolt retainer for connectors.
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Unbolt knock sensors I and 11.
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Unbolt left - hand coolant pipe flange from cylinder head.
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Detach coolant pipe.
Installing
Installation is carried out in the reverse order:
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Before installing, clean and smooth down sealing surface for O-ring as required.
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Moisten new O-ring -1- with G 012 AS D and slide onto coolant pipe -2-.
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Push coolant pipe into opening in cylinder block.
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Fill up with coolant. See: Service and Repair
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After connecting battery terminals, enter anti - theft code for radio
Refer to Radio operating instructions
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Close electric windows in front doors all the way to their top positions using electric switches.
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Operate all electric window switches again for at least one second in the "close" direction to activate the automatic one-touch function.
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Set clock to correct time.
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Check DTC memory.
Note: DTCs will be stored in the memory because connectors have been unplugged. Therefore, check and erase DTC memory after installing the
engine.