Standard Ignition EOS51 oil separator for the 2019-2023 Audi TT Quattro 4-cylinder 2.0L and other vehicles takes over the oil-separating job in the engine's emissions system.
A cracked or leaking engine oil separator can show up as oil seepage around the housing or as trouble in the emissions system. A failed PCV valve or a split vent hose can be behind similar signs too, so find the cause before buying a replacement.
This oil separator is a direct-fit OE replacement for the 2019-2023 Audi TT Quattro 4-cylinder 2.0L, the 2019-2023 Audi TTS Quattro 4-cylinder 2.0L and the 2021-2022 Audi Q5 4-cylinder 2.0L, and it goes in easily straight out of the box. The 2019-2023 Audi TTS Quattro 4-cylinder 2.0L takes one. Owners of other Audi and Volkswagen models can find their year and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
One oil separator, a gasket and mounting hardware. A clamp and a protective sleeve are not included.
Interchange: EOS151 · MSAB10051 · SEP755 · 06K103495AF · 06K103495AS · 06K103495BL · 06K103495T
This part cross-references / interchanges with the following part numbers:
Is the EOS51 an Audi Q5 oil separator for the 2021-2022 4-cylinder 2.0L?
Yes. Standard Ignition EOS51 fits the 2021-2022 Audi Q5 4-cylinder 2.0L, which takes one. For other cars, find your year and engine in the "Vehicles it fits" section.
Does the EOS51 come with a gasket?
Yes. Standard Ignition EOS51 includes one oil separator, a gasket and mounting hardware. A clamp and a protective sleeve are not included.
What are the inlet and outlet diameters of this oil separator?
The inlet diameter is 1.016 mm (0.04 in) and the outlet diameter is 1.778 mm (0.07 in).
How can I tell if my oil separator is cracked or leaking?
With the engine off and cool, look for visible cracks or oil seepage around the separator housing. A shop can test the emissions system for anything beyond what you can see.
Does the EOS51 replace OE number 06K103495AF?
Yes. Standard Ignition EOS51 is listed as a replacement for 06K103495AF. Its other cross-reference numbers are on the Interchange line.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
