3.0 TDI engines on higer miles / maintenance ?

[skymaster]

Hi

I own a 3.0 TDI A4 and it's just passed 50k on the clock. It's been serviced at least every 10k. Previous VAG diesels I have owned have suffered a bit of 'clogging' up, especially the EGR valve. In fact I had one TDI A4 a few years back that became so coked up the turbo became starved of oil and blew, that was despite regular servicing , albeit on longlife :-( ...

Is there anything on the 3.0 tdi (2008) engine that requires medium - long term looking at in order to keep things clean and running nicely... The car is chipped (Revo) So I am keen to ensure it's all tip top.

[Guest 2]

My 3.0 ASB in my A6 has been pretty reliable and its on 91k, had it since 33k.

[Hex69]

I'd suggest the occasional Italian Tune Up would be beneficial. :)

Italian tuneup - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Italian_tuneup)

[skymaster]

Oh... it gets plenty of those Italian Tune ups ;-) At least five a week in fact... When I first owned the car (around 25k miles) it used to feel really quite rough when revved right near to the red line... but in the last 5k or so it's become really smooth right up the range... Not sure if that's my driving or the engine just bedding in...

[theskyfox]

The EGR valve is one of those components that needs clearing and/or replacing every few years on all diesels fitted with them. They are just a cr*p engine component. I had to have one replaced on my 1.9TDi a few years back, and know a few people that have simply had them blanked off.

I've only done 25k miles or so in my 3.0TDi...not had any problems so far *touch wood*. I'm not so sure an 'Italian tuneup' is needed - high rev rough and ready driving isn't really what diesels are built for. Its far more beneficial to simply avoid doing unnecessarily short journeys in it. These engines really do shine in their long distance and long endurance drives. Additionally its probably worth using higher quality fuel where possible too as these tend to have additives in that help to remove/reduce carbon buildups, though that is a topic in its own right.

-Andrew