Buy OEM Audi Part # N0138149 (0N0-138-149, N 0138149). Ring. Seal. Line. (Rear). 2.0 LITER. 2.0 LITER, GAS, RETURN, TO VIN 1K9109650. 2.0 LITER, RETURN. 2.0 LITER, SUPPLY. 2.5 LITER. 2006-08

A circular disk covered in rubber or plastic with a hole in the center where the edge is sometimes tensioned by a spRing that prevents fluid from leaking at the Engine Coolant Expansion Tank Hose. A component which prevents a leak at the Cooling System Bypass Line. A Seal that prevents oil from leaking out, or contaminants from enteRing the Cooling System Crossover Line. Engine Coolant Bypass Pipe O-Ring. Engine Coolant Pipe Seal. Engine Oil Drain Plug Gasket. Seal for the Turbocharger Coolant Line. Turbocharger Coolant Line O-Ring. Turbocharger Oil Line Gasket. Turbocharger Oil Line O-Ring.

Turbocharger Oil Line GasketTurbocharger Oil Line O-RingTurbocharger Coolant Line SealEngine Coolant Pipe SealTurbocharger Coolant Line O-RingEngine Coolant Bypass Pipe O-RingEngine Oil Drain Plug GasketEngine Coolant Bypass Hose SealCooling System Crossover Line O-RingEngine Coolant Overflow Hose Seal

Fits A3, A4, A5, A6, allroad, Q3, Q5, TT, TT RS, TTS

2.0 LITER. 2.0 LITER, GAS, RETURN, TO VIN 1K9109650. 2.0 LITER, RETURN. 2.0 LITER, SUPPLY. 2.5 LITER. 2006-08. 2007-08, RETURN. 2009 W/O AWD, RETURN. 2012-15. 2012-2013. 2013-2016. A4; From 5400001. CONVERTIBLE, 2.0 LITER. Coupe, 2.0 LITER. GAS. W/O HYBRID.