cliffcoggin

That video confirms electric flaps, and tells you all you need to know.

Glad to hear you have solved the problem. Thanks for letting us know.

There are no mechanical connections on that unit so demisting must be electric. Are you sure you don't have embedded electric filaments in your windscreen, which of course do not control air flow?

Yet you mentioned a switch not a lever.

Electric flap motors are known to be prone to failure, but I am unsure if your car is of an age to have electric flaps or mechanical controls.

That's good news Jon. Equally important is the fact that it is published publicly on this forum for other owners to discover if they should suffer the same fault. I must say it worries me that Audi can get such a simple process as making a lens cover so wrong. Unlike electronics, injection moulding of lens covers is not new technology. It has been an established manufacturing process for over half a century, so the effects of over chilling a mould are well known.

Some models have the comfort control module under the carpet leaving it prone to physical damage and moisture. I don't know if yours is one of them, but it would be worth a look.

It's hard to believe one pulley disintegrated; for two to fail suggests an inherent fault in the mounting, but quite what the fault could be I have no idea.

It's a long way from Pease Pottage to Milan.

In that case I am at the limit of my knowledge and can not help.

Was the battery coded to the car? It needs to be.

Glad to read it Lachlan, though I don't understand how a faulty module can make the key hot. I guess that's why I am not an electrician.

I hope you don't regret it. Audi is not the brand it once was.

You have my sympathy.

Whenever the brakes are used the reservoir pressure is depleted so the pump recharges it. It should only take a couple of seconds and be inaudible while driving. If yours takes longer or is noisy it probably needs overhaul.

Well if you didn't laugh, you'd cry.

Evidently not. That's another one for P&R blacklist.

Perhaps they are dead.

Your description sounds very much like the electro-hydraulic servo I had on one of my cars, (I can't remember if it was the A3 or the Granada), which made a faint sort of buzzing sound. It lasted only for 15 seconds at most, and stopped as soon as the pressure reached its set point.

You can easily calculate it for yourself. Fill the tank at the start of a long journey, fill it again at the end, then divide the distance travelled by the number of gallons you put in.

Don. Bear in mind that none of us have laid eyes or hands on your engine, so our assessment is based solely on your description and one photograph. Nevertheless those of us who have offered an opinion can not imagine that siezure of the fuel pump can snap the cambelt unless it was either defective or wrongly fitted.

Thanks. I wish I could separate your topic from the original as it is unrelated and will not show up in a forum search. Unfortunately I don't know how, or even if, it is possible.

Glad to read it. Which particular diagnostic tool found the fault?

Do you have a report for us John?

Am I misunderstanding this, or are you telling us your mate is responsible for two damaged engines?