cliffcoggin

If the light appeared immediately after the service I suggest you take it back to the garage. They may have simply forgotten to reset the service warning.

How on earth did a stone that size get onto the undertray? Had she been off-roading?

I suggest you complain to the vendor. It may not do any good but you have little other recourse.

Sorry, I can't hear anything like you describe, which leaves me guessing. Turbo air leak? Tyre noise? Slipping belt? Unless somebody comes up with a better idea I suggest you get it professionally checked.

I hear nothing but uniform road noise throughout the whole clip. You'll need to provide a better recording and a better description if we are to help, otherwise random guesses is all we can provide.

The bite point should be approximately half way up the pedal travel. Assuming there is no slack in that pedal motion it's time to get the clutch repaired before you damage the gearbox.

The most likely cause is a worn clutch. Where is the bite point when using it i.e. how far up is the pedal when the clutch engages?

You're welcome, and thanks for responding. Few are courteous enough to do so nowadays. Diesels are heavier and stronger than similarly sized petrol engines. All that extra metal takes longer to cool down.

Ryan. If you are saying the engine takes longer to cool after it has been turned off, and warm up time is shorter, then I don't believe there is anything wrong and they are just the result of warmer summer weather. Everything else in your report is perfectly normal.

Ir would be worth checking the continuity of all wires running up the rubber tube between tailgate and body. They have reputation for breaking.

Harry. A 12 year old car with sporty modifications and 117000 miles on the clock would be ringing alarm bells for me. The chances are it has been thrashed by a boy racer so don't get your hopes up too high.

Bård. It seems unlikely that there are various mechanical and electrical faults on three wheels at once so my guess would be a single fault in the brake module, however I can not be certain enough to recommend an expensive replacement. Another opinion here would be useful, or diagnosis on a professional Audi test rig.

Agreed. I would have expected Stuart's garage to suggest it as the next step.

That suggests that excessive pressure is being generated. My guess for the cause would be a leak at the cylinder head gasket or a restriction in coolant flow leading to boiling.

Stuart. You wrote that you can hear the leak dripping, but have you actually looked? Where specifically is it leaking from at the expansion tank? The cap, the hose connection, a hole in the side, somewhere else?

Glad you found the fault. The screwdriver stethoscope is always my first choice for diagnosing odd noises, though a proper mechanics stethoscope is easier on the ears and skull.

In that case I don't know as I am in England. Are you sure it is a matter of a poor signal rather than a radio or aerial fault? A bad aerial connection often causes crackling.

Which Melbourne?

Getting redress from a private seller is theoretically possible; in practice it is rarely worth the time and trouble. That's unfortunate, but it's one of the reasons private sales are cheaper than trade sales.

Chris. To amplify Gareth's comments, it is the oil consumption you should be concerned with, not the misfire. The misfire is merely a consequence of the plugs oiling up as a result of the enormous oil usage. Cure the oil consumption, and the misfire will disappear.

I have not the faintest idea what it would cost, but it is safe to say that an Audi repair will not be cheap. Take it back to the dealer, it's his problem not yours. As a truck driver you don't need me to tell you whether a loss of coolant is serious or not.

White smoke is a sign of coolant in the exhaust. Not definitive, but a sign all the same, so very possibly a leak at the EGR.

It is normal for the coolant level in the reservoir to go up a little as the engine warms up, so if the level was marginal when cold I would expect the warning to go out as the engine approaches normal temperature. Nevertheless you may still have a faulty level switch. Does your test equipment not show any fault?

It's remarkable what public exposure can achieve. Do let us know the outcome.

Hang on to all correspondence, videos, letters, emails, and anything else evidential in case legal redress is necessary at some point. With luck it won't come to that, but if a legal battle is needed it is best to be fully armed. Good luck.