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If burning oil was the reason for the turbo change, then you have probably got oil that was carried over into the exhaust system. Two options, put up with it till it all burns off or change the exhaust. :wink:

You don't say the year or cc of your A3 but try this..... Two buttons, one nearest the rev. counter(button "A") and one nearest the speedo(button "B") OIL- oil service Press and hold button "A" Switch ignition ON The letters "OIL" will appear in the trip recorder display Release...

Tank vent blocked. :wink:

The sooner you get a diagnostic check done the better, you'll know what is wrong and you can put it right. If you carry on running it without doing anything, it's likely you will damage the cat. :wink:

Probably age and weather along with damaged paint/finish. Patch it with fibreglass as you would a car. :wink:

Have a second diagnostic check done with a different reader, when the light comes on it should record a fault. The engine probably reverts to "limp home mode" this means the ECU has set parameters to get you home or to a garage, that is why it runs under powered when the light comes on...

Try at www.proprint.co.uk :wink:

Turn ignition key to position 1 Press and hold reset button (down and left of speedo) Immediately switch ignition ON Keep reset button pressed until service message has been reset Release reset button within 4 seconds. There will be an audible signal when reset is complete. If reset is...

Have a look at fuse No.13, if it's ok try what "gregers" says. :wink:

Try good jump leads from another car if you still get the same response, look to the starter motor and its earth connection. If it starts on jump leads, your battery is flat or knackered. :wink:

Hi. The cost was £270 for the parts. I think you need to have a fault readout done first. If it is a coil pack/ECU problem it should flag up a fault code for "fault on no.2 coil circuit (coil for 2&3 cylinders). If your cylinders are ok (compressions etc.). Try swapping the coil packs...

The misfire on 2 cylinders is a common fault. I have just done one, i.e.new coil packs and a reconditioned ECU . Try here www.the-ecu-doctor.co.uk or here www.lynxautomotive.net ( check the common faults write up ) :wink:

Hi. The misfire on two cylinders (1&4 or 2&3) is caused by a faulty coil pack or a faulty ECU or both. I would advise changing the coil packs (2) first, if that doesn't cure it you will need an ECU repair or replacement. :wink:

perhaps the linkage has been set slightly out or even been slightly bent in the collision. :wink:

Try it again, if it does the same, it will probably be a faulty ignition switch. Renew it. :wink:

Sorry, you need to have a diagnostic check/readout done which will tell you the fault. Shop around for a price ( about £25ish ). :wink:

Have the alternator checked out. should put out 13.5-14.5v. :wink:

There should be a sensor in the fuel rail which detects the fuel pressure from the pump, that could have an intermittent fault causing the fuel to shut off if it detects a (false) pressure drop. The running pressure in the rail is a constant 1350 bar. This sensor will flag up a fault if it...

Get a fault code readout and a second opinion from another garage. :wink:

Look to the coil packs, clean the terminals, if that doesn't cure it , change them. :wink: