cliffcoggin

If you are not prepared to supply relevent information I can not help further.

Those are not pressure readings. I am asking for pressure readings from each cylinder while being cold cranked by the starter motor with all plugs removed.

So the engine was in a poor state beforehand. In that case let's go back to basics and start with a compression test. Please let us know the results.

Then let me ask another question. Did the engine smoke before the modifications and re-mapping?

If the injectors are fine, then my money is on faulty re-mapping.

All I can think of as a temperature dependent cause is vapourisation of the fuel in the pipe from the tank. That implies that either the low pressure pump or the high pressure pump is faulty.

David. Unless I have missed it in the extensive reports, I have seen no mention of the battery being tested. By that I mean a deep discharge test on professional equipment, not a multimeter voltage reading. Has that been done?

I suggest you get it scanned by a professional code reader as a first step. Cheap readers are inadequate for the job. If that can not be done or it does not reveal anything significant it's likely that either the battery is dying or the instrument cluster is faulty. The battery should be tested professionally, under a heavy load. The cluster can be repaired if necessary by several companies at a fraction of the Audi cost.

Car manufacturers will clutch at any excuse, no matter how irrelevant, in an effort to avoid responsibility for guarantee work. If you can obtain written proof of servicing from whoever did it you will have a better chance with a possible claim.

There is a fair chance the wires are broken or shorting out in the rubber bellows between door and frame. It is a common problem with the driver's door because that gets the most use, but it can happen in other doors.

Unlikely, because Omar has not bothered to return to the forum for a year and a half.

Even if there is an easy fix, I think it would be worth taking it back to the dealer to avoid any possibility of invalidating the guarantee.

Do please let us know of progress.

I'll leave the fault codes for others to advise on.

If that is a simple voltage reading on a multi meter it is inadequate to determine whether a battery is defective. Steve is referring to a professional battery test that imposes a heavy load on the battery to expose internal faults within the battery such as high resistance or sulphation of the electrodes.

Very risky without a service history. Walk away from the deal.

Maidstone to London is an hour each way; Maidstone to Framlingham is three hours each way. Those journeys should be more than enough to induce regular regenerations to keep the DPF clear. Have you had any engine or Adblue warnings other than DPF?

You won't find defective CV joints with a crowbar. You need to clamp self locking grips onto the drive shaft and rotate it violently to detect any rotational slack. The gearbox needs to be locked by putting into a gear, and the wheels need to be locked either with the brakes or being on the ground while doing the test.

Were the replies any use to you Mark?

One last option to consider is to fabricate a new hose from sections of stainless steel pipe, stainless steel elbows, straight rubber hose, and Jubilee clips. It won't be pretty and there may not be space to install it, but it might just keep the car on the road.

Wise words. Too many scum staging crashes for fraudulent insurance claims.

Please do.

A musty stink often indicates residual stagnant water in the condenser, caused by the drain being blocked by dirt or leaves. A dribble of water under the car when parked after driving in humid conditions with aircon tells you the drain is open. If there is no water the drain is blocked.

Please don't even consider re-drilling the wheels. Moving the holes 6mm outwards will cut into the offset web, weakening them considerably. Try the spacers if you must, and accept the risk of fouling the bodywork, but realistically your best option is to sell them.

It may be a control problem or a vent motor fault. A diagnostic scan on a professional machine should identify it.