Connects the power steering pump to the steering rack
For vehicles with Audi Drive Select dynamic steering (adjusts steering ratio dependent on speed)
Audi A4 Most Popular Parts
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Two hole version
Up to VIN 8D-W-007799, split is in the 1998 model year
Includes housing and seal ring
Applies pressure to the tensioning roller
Keep your drive belt tight
Also referred to as the 'relay roller'
Up to the 2012 model year
Relay roller on left side of engine block (driver's)
From chassis # 8E-2-000001.
Connects the upper radiator to the expansion tank and thermostat housing
Applies the pressure from the damper to the timing belt
Connects the throttle body to the top port of the intercooler
Up to VIN 8D-1-170000, split is in the 2001 model year
Replace with timing belt service
Hydraulic tensioner for timing belt
The idler pulley for the toothed timing belt
Keep your fuel to yourself
Model year 1996 to 1998