Hi All,
Regarding the VAG 3.0 V6 TDI (as used across the VAG group- ie Audi, VW, etc) and getting to the EGR and intake manifolds....looks interesting doesn't it?
Mine is a high miler now and recently had to face the dreaded DPF blocked issue. Costly option for the replacement part, but that's not what this post is about.

My convoluted thought train tells me that a high mile heavy oiler must surely need a little intake manifold and EGR cleaning, especially after a DFP blockage - which would have forced ridiculous amounts of exhaust gas back into the system with all the relevant additional soot deposits etc.

Now here's my problem. Once I pop the engine cover I am faced with those twin banks and all the rest of the stuff that neatly fitted nicely snug in the centre of the V6. The bit that worries me is that covering all of the bits that I'd like to get to, are various pipes, including what looks like a cross flow link between the 2 diesel common rail fuel system.

In effect I would have to unplug and disconnect a whole heap of things to get to the EGR cooler etc as well as the intake manifolds.
Is this going to prove to be a step too far for me - as in will the fuel line re-pressurisation be a major issue if I was to go through the strip down.

Input greatly appreciated as I think it may be a job worth doing.

Intermittent fault codes that come up linked to this are:
P1545 Throttle valve control system : malfunction.
P0401 Exhaust gas recirculation flow: insufficient detected

I understand a blocked or clogged EGR valve can give 'insufficient detected' reading. The EGR enters the air intake system at the Throttle valve control and could therefore be clogging that up as well.

Best Regards.