A6 2.6 V6 lambda probes

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Mar 11, 2015 | 05:16 AM

stabes

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Joined: Mar 2015

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A6 2.6 V6 lambda probes

Hello all,

Have this result from a VAG-COM scan of my dad's car -

Address 01: Engine Labels: 4A0-907-473.lbl
Part No: 4A0 907 473 B
Component: 2,6l V6 MPFI D02
Coding: 00008
Shop #: WSC 03156
VCID: 25480CF4BF12D4093D6-4B18

3 Faults Found:
00525 - Oxygen (Lambda) Sensor (G39)
27-00 - Implausible Signal
00555 - Oxygen (Lambda) Sensor 2 (G108)
27-10 - Implausible Signal - Intermittent
01247 - Activated Charcoal Filter (EVAP) System Solenoid Valve 1 (N80)
31-10 - Open or Short to Ground - Intermittent

Questions:

1. Do these issues require immediate service or can the vehicle still happily continue with these issues.
2. Any pointers for replacing the probes?
3. I don't know what a EVAP valve is. Anyone know where it is located?
4. Any pointers where I can buy these parts online?

Many thanks,
Mart

Mar 15, 2015 | 12:08 PM

One

AudiWorld Member

Joined: May 2011

Posts: 58

Likes: 1

From: Georgia

The evap valve sits between the mass air flow (maf) sensor on the intake hose and the fuel filter. it has a connector and a 10m or so rubber hoses in and out. The part costs about $75 verify its functionality by searching for evap diagnosis. The Oxygen sensors: there are 1 on each side of the engine on the exhaust manifold just below and behind the valve cover. they are easy to get to, but there are 2 more behind the catalytic converters. They are not cheap either, so do more research.
The car can be run as it is, but use more fuel and could be dangerous due to the build up of highly flammable compressed gasoline fumes.