My niece has a 2010 A3 convertible which she has owned for about a month, having purchased it privately.
It has done 94 k miles with FSH and is in excellent condition.
It is fitted with the 1.6 TDI common rail engine and it has the stop-start system fitted.
About a week ago she began having issues after starting it each morning.
The symptoms are that it will start on the first turn of the key but after a few seconds it will start to run roughly, with the engine juddering and will be totally unresponsive to the accelerator ie revs will not rise, at which point the engine will stall.
The car will do this about 5 times, after which it will run perfectly for the rest of the day.
A dash light did come upon the dash, think it was the glowplug symbol?
I scanned the car with VCDS after the first time this happened and it came up with a fault saying 'implausible signal' from the MAF sensor so I cleared the code and the dash light hasnt come back.
I scanned the car yesterday , to see if there was any code but no error code was found.
The car is playing up every morning.
Today I serviced the car (air, engine oil and fuel filters) and my niece was present when I did the final oil level check and wanted to start the engine to ensure that the filter housing wasn't leaking.
On starting the car up (the engine was still quite warm) it began to misbehave in the manner described above, and she yelled to me that it was doing exactly what it does each morning, except it had never done it before when the engine was warm/hot?
I had warned my niece that as the fuel filter had been replaced it could well splutter or cough for a bit until any air in the filter had been bled out (even though when I did the same job recently on my 2.0 TDI it ran perfectly)so I'm wondering if the problem could be related to the fuel system?
I should add that a replacement MAF is on order as I was a bit worried that it may fail and because it is so easy to change thought it would be worth doing.
So, any ideas what the problem could be?
The fuel filter that I removed looked quite clean with no obvious sign of gunk inside (I've seen some threads where the fuel filter housing can become gunged up due to the tandem pump failing, although I'm not sure if the 1.6 has such a pump?) .
I'm thinking that whatever it is, it isnt an electrical or electronic fault as I cant get VCDS to find anything wrong?
Thanks!
It has done 94 k miles with FSH and is in excellent condition.
It is fitted with the 1.6 TDI common rail engine and it has the stop-start system fitted.
About a week ago she began having issues after starting it each morning.
The symptoms are that it will start on the first turn of the key but after a few seconds it will start to run roughly, with the engine juddering and will be totally unresponsive to the accelerator ie revs will not rise, at which point the engine will stall.
The car will do this about 5 times, after which it will run perfectly for the rest of the day.
A dash light did come upon the dash, think it was the glowplug symbol?
I scanned the car with VCDS after the first time this happened and it came up with a fault saying 'implausible signal' from the MAF sensor so I cleared the code and the dash light hasnt come back.
I scanned the car yesterday , to see if there was any code but no error code was found.
The car is playing up every morning.
Today I serviced the car (air, engine oil and fuel filters) and my niece was present when I did the final oil level check and wanted to start the engine to ensure that the filter housing wasn't leaking.
On starting the car up (the engine was still quite warm) it began to misbehave in the manner described above, and she yelled to me that it was doing exactly what it does each morning, except it had never done it before when the engine was warm/hot?
I had warned my niece that as the fuel filter had been replaced it could well splutter or cough for a bit until any air in the filter had been bled out (even though when I did the same job recently on my 2.0 TDI it ran perfectly)so I'm wondering if the problem could be related to the fuel system?
I should add that a replacement MAF is on order as I was a bit worried that it may fail and because it is so easy to change thought it would be worth doing.
So, any ideas what the problem could be?
The fuel filter that I removed looked quite clean with no obvious sign of gunk inside (I've seen some threads where the fuel filter housing can become gunged up due to the tandem pump failing, although I'm not sure if the 1.6 has such a pump?) .
I'm thinking that whatever it is, it isnt an electrical or electronic fault as I cant get VCDS to find anything wrong?
Thanks!