PCV Relocation Oil Separator, Audi 3.0T EA837 (06E-103-772-C, OEM A4/A6 3.2L V6)

The Separator Behind Our PCV Relocation Kit, Now Sold On Its Own

This is a straightforward oil separator: a baffled passage that mechanically separates oil droplets out of crankcase blow-by gases before they're routed back into the intake, so you keep the oil in the crankcase where it belongs instead of pulling it into your intake tract. There's no rubber diaphragm or spring-loaded valve inside to tear, stick, or wear out. It's a much simpler design than the pressure-regulating PCV valve most Audi people are used to troubleshooting.

This exact unit (OEM 06E-103-772-C, supersedes 06E-103-464-D) is the separator we build our 3.0T EA837 PCV Relocation Kit around, and it's also the genuine factory replacement for the naturally aspirated 3.2L FSI V6 used in the Audi A4 and A6. Same part, two jobs.

Why Relocate the 3.0T's PCV System in the First Place?

On the 3.0T EA837 supercharged platform, the factory PCV setup lives buried underneath the supercharger. When it fails there, the "repair" is pulling the supercharger just to reach it. Relocating the system moves the separator to a spot you can actually service without dropping the supercharger again, and this is the unit that setup is built around.

• ✅ Genuine OEM cross-reference: 06E-103-772-C (supersedes 06E-103-464-D)
• ✅ Pure mechanical oil/vapor separation, no diaphragm or spring valve to fail
• ✅ The same separator used in Vorsprung's own 3.0T EA837 PCV Relocation Kit
• ✅ Also a direct OEM-spec replacement for Audi's 3.2L FSI V6 (A4, A6)

Bottom line: whether you're relocating a 3.0T's PCV system away from the supercharger or replacing a tired separator on a 3.2L V6, this is the same genuine unit doing the job either way.

What's Included

• 1x Oil separator unit, cross-referenced to OEM 06E-103-772-C (supersedes 06E-103-464-D)

This listing is the separator on its own. For the full mounting hardware, fittings, and lines to relocate a 3.0T's PCV system in one box, see our 3.0T Complete PCV Relocation System below.

Installation

If you're using this as part of a 3.0T EA837 PCV relocation, mount and plumb it per your relocation setup, in whatever accessible spot your kit routes it to. If you're replacing it as a direct OEM part on a 3.2L V6 A4 or A6, it sits low in the engine valley beneath the intake manifold, so budget for a manifold-off job; since you'll already be in there, it's a good time to check the intake and valley pan gaskets too.

Vehicle Fitment

Direct OEM fitment is the naturally aspirated 3.2L FSI V6 in the Audi A4 (2005–2008) and A6/A6 Quattro (2005–2011). On the 3.0T EA837 supercharged platform (S4, S5, A6, A7, A8, Q7), this same separator is the component used inside a PCV relocation build rather than a stand-alone bolt-in for the factory location.

PCV Relocation Oil Separator FAQ

When will my order ship?
This is a new listing. Orders are shipping in batches, with stock arriving late October to early November 2026.

Does this have a rubber diaphragm that can fail like the factory PCV valve?
No. This is a straightforward oil separator, a baffled passage that separates oil from crankcase blow-by mechanically. There's no diaphragm or spring-loaded valve inside to tear or stick.

Will this fit my 3.0T supercharged S4, S5, A6, A7, A8, or Q7?
Only as part of a PCV relocation setup. It's the separator we build our 3.0T EA837 PCV Relocation Kit around, sold here on its own for relocation builds already in progress. It won't bolt straight into the stock 3.0T PCV location without that setup.

Can I use this as a direct replacement on my A4 or A6 3.2L V6?
Yes. It's a direct OEM cross-reference (06E-103-772-C, supersedes 06E-103-464-D) for the naturally aspirated 3.2L FSI V6 in the A4 (2005–2008) and A6/A6 Quattro (2005–2011).

What's the difference between this and your Ultimate PCV Valve?
The Ultimate PCV Valve is a direct, in-place replacement for the factory 3.0T PCV valve. This separator is the component used when you relocate the whole system to a more serviceable spot instead, paired with our PCV Relocation Kit.

Does this include the mounting hardware and lines for a relocation build?
No, this listing is the separator unit only. For everything needed to relocate your 3.0T's PCV system in one box, see our 3.0T Complete PCV Relocation System.

Complete Your Build

Pair this separator with:

• 3.0T Complete PCV Relocation System - the full kit this separator is built around, with all mounting hardware, fittings, and lines included.
• Billet PCV Breather Quick Connect - converts your 3.0T's factory breather port to an AN fitting, useful if you're plumbing your own custom relocation setup around this separator.

Drive the difference. Drive Vorsprung.