My audi a3 2.0 tdi has cut out and wont start seems like it is turning over realy easy it has done 53k there is and was no fumnny noises there is no warning lights or anything

Walk away from it. Unless your getting it dirt cheap. Tapping is top end, Head job. Not cheap. Knocking is bottom end. replace the engine.

Have you checked fuses and relays yet, You must start here its always the easy fix. Let me know

Time to have a mechanic diagnose it...judging by your description...do you race the vehicle??? is it well Maintained??? Did you buy it new??? have you had the timing belt, and tensioners replaced??? If the timing belt gave way, and there were no funny noises, that means your car has a "non interference" engine, which is a very good thing...find a mechanic that you, or some of your friends trust, and let him/her take a look at it...you might need to leave it for a while...good luck...

Check thefuses and wiring of the glow plug circuit. check for corrosion on any of the contacts and while there, check each one with an ohm meter to make sure none have burned out.

tandard practice to change the oil on a clutch replacement. Was the replacemmiles it's covered, but it's not sounds like the gearbox oil need changing. You don't say how many miles it has done. Gear box oil is not usually changed in a clutch replacement. Did an Audi garage carry out the rlacement? It could be the cable needs adjusting to allow the clutch to have free movement

There is a relay which will make a `clunk` noise under the bonnet.
It can be heard a few seconds after the glow plug light on your dashboard goes out.
I would suggest that this is the problem. You may have to buy a new one. Very easy to do.
Quite cheap as well.

HI,COULD BE ONE OF FOUR THINGS,1-PUMPS DO BURN OUT TRY A 12V DIRECT FEED TO TEST 2-FUSE? 3-FUEL PUMP CUT OFF SWITCH ,IF FITTED NEEDS RESETTING .4-FUEL PUMP RELAY GONE (COMMOM) THANKS.

Could be low oil level indicator tha auto shuts of engine if oil goes low