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and Z4 (E89) from 2007-2013
Precise Valve Timing: Restores proper cam phasing for better power and economy
Make Model Years Engine Volkswagen Passat 1998–1999 2
contributing to smooth engine operation and reduced emissions
Engineered for 2
Bosch Upstream Oxygen Sensor (17115) – Fits Audi A4 B9, A6 C7 performance brake and Z4 (E89) from 2007-2013Bosch oxygen sensor (part 17115) is a high quality upstream (pre catalyst) sensor designed for select Audi A4 and A6 models with 2. 0L engines. It accurately measures exhaust oxygen content to optimize air fuel ratio, improving fuel efficiency and reducing emissions. OE quality construction provides long service life and a direct fit replacement. Key Features & Benefits Precise upstream measurement: Ensures optimal air fuel ratio for efficient