3.0 TDI A6, am I mad for considering buying one?

[hrb93]

Hi all,

Am I mad for considering buying a 2004 A6, 3.0TDI.

55,000 miles.

Will it lead me to a life of misery?

Or is it luck of the draw?

Thanks.to

[L3g10n4rU]

Luck of the draw [emoji4]
C6 or C5?


Sent from my iPhone using Tapatalk

[swalker]

If it is plain sailing consider it boring... adds character, i bought an 07 with 110K have had a couple of issues but you are in the right place to get them sorted.

[C6Allroad]

Hi all,

Am I mad for considering buying a 2004 A6, 3.0TDI.

55,000 miles.

Will it lead me to a life of misery?

Or is it luck of the draw?

Thanks.to
I’d be worried / suspicious about that low a mileage on that age of diesel car - does it have a history explaining this?

[rowdy-999]

Try and get 07+ for improved injectors.

[prophet]

I’ve just bought a 55 plate with 148k on it, so hopefully yours will be fine.

[niedzial1983]

2004-2006 3.0tdi BMK engiens do suffer from chain failures and poor injectors. This was fixed in late 2006 + with ASB engine.

Sent from my SM-G950F using Tapatalk

[B5NUT]

Never heard of a chain failure on the BMK engine, the top tensioner can start to fail causing a rattle at start up but the ASB engine also has the same issue. The top tensioners can be replaced with the engine in place.

Main issue with the BMK engine is weeping injectors which produces lots of smoke, it's more noticeable if the engine is hot and left to idle.

However a car with only 55K mile should be OK.

[prophet]

Interesting. On my 149k car I know the injectors have been replaced. How do you check if the chain is likely to fail?

[L3g10n4rU]

It doesn’t fail. It just makes a noise when you start the engine at both cold and warm. It makes a vruuumm. I personally changed them and after 1-2k kilometres made the same sound.


Sent from my iPhone using Tapatalk

[prophet]

That’s good to know. As far as I can tell, my engine sounds sweet as a nut. Never heard any rattle.

[L3g10n4rU]

Before changing them I took a visit to audi and they told me that the sound will come back since they changed a lot of them. The only plausible fix is to change all the distribution. I bought my car at 135k kilometres and now it has 250k+. Nothing happened till now but my heart stops almost all the time when I start the engine. The most important thing is to leave the engine running for a few seconds after you start it so you don’t force the whole distribution with the chain tensioner not tensioned.


Sent from my iPhone using Tapatalk

[lynalldiscovery]

I would have the bonnet up when the engine is genuinely cold and get someone to start it, if theres the faintest hint of a rattle beware the chain tensioners are on their way, if it sort of starts with a little hesitation then runs sweet its got impending injector problems.
Test drive it and when its at proper temperature (at least 5 miles, more is better) pull over leave engine idling and stare at the exhaust pipes for at least 10 minutes any smoke/steam at all means the injectors are on the way out.

Wifes old A4 3.0tdi 2004 started to get rattly chains AND smoke at idle when hot, so it got chopped, great car but spending more on a car than its worth is just madness.

[L3g10n4rU]

There are two TSB’s regarding this problem. One for the injectors and one for the chain tensioners. I changed the injectors too so the only solution is to change all the distribution but I don’t find plausible reason to change it.


Sent from my iPhone using Tapatalk