jamin128
31-03-2014, 06:25 PM
Please help ... I think I may have bought a lemon :-(
I have a 2008 A4 B8 2.0 TDI which has done 80,000 miles ... I am having starting problem, rough idle particularly when warm & a steering knock.
I have had the car about 4 months, and it has always been rough on idle, but it seems to be getting worse.
The car struggled to start sometimes, and as it still had its original battery which wouldn't hold its charge, i decided to replace it. This didn't make any difference to the starting :-(
Not long after this (about 4 weeks) the coil light started to flash very briefly every minute or so, and then the engine light came on.
Did a scan with VCDS and it came up with the throttle valve and a glowplug. I replaced the throttle valve and all 4 glowplugs.
Cleared fault codes and they haven't returned, although the car is still running rough :-(
*** Not sure if this is relevant, but the pipe that connects to the throttle valve had and still gets oil in it ... is this normal ?
I have tried injector cleaner, and premium diesel, although I always fill up at BP regardless.
I also had a full service carried out, although it was only at a local garage.
Now the steering makes a knock at low speed when turning from right to left / left to right. I have noticed that the steering pump (http://shop.ebay.co.uk/?_nkw=steering+pump) has become very noisy, it sounds like the bearings.
My knowledge on cars is very limited, but I am keen to learn :-) ... Also, funds are limited!!!!
Can anyone help me with, and or point me in the right direction to diagnose any of the above problems. I have VCDS and a tool kit (http://shop.ebay.co.uk/?_nkw=tool+kit).
Thank you in advance, any help is much appreciated :-)
*** Sorry I forgot to mention that I had 2 new front tyres fitted prior to the knocking noise, and when I collected the car the steering was off center, although this seemed to rectify itself!!! The steering has only recently started making a noise.
I have a 2008 A4 B8 2.0 TDI which has done 80,000 miles ... I am having starting problem, rough idle particularly when warm & a steering knock.
I have had the car about 4 months, and it has always been rough on idle, but it seems to be getting worse.
The car struggled to start sometimes, and as it still had its original battery which wouldn't hold its charge, i decided to replace it. This didn't make any difference to the starting :-(
Not long after this (about 4 weeks) the coil light started to flash very briefly every minute or so, and then the engine light came on.
Did a scan with VCDS and it came up with the throttle valve and a glowplug. I replaced the throttle valve and all 4 glowplugs.
Cleared fault codes and they haven't returned, although the car is still running rough :-(
*** Not sure if this is relevant, but the pipe that connects to the throttle valve had and still gets oil in it ... is this normal ?
I have tried injector cleaner, and premium diesel, although I always fill up at BP regardless.
I also had a full service carried out, although it was only at a local garage.
Now the steering makes a knock at low speed when turning from right to left / left to right. I have noticed that the steering pump (http://shop.ebay.co.uk/?_nkw=steering+pump) has become very noisy, it sounds like the bearings.
My knowledge on cars is very limited, but I am keen to learn :-) ... Also, funds are limited!!!!
Can anyone help me with, and or point me in the right direction to diagnose any of the above problems. I have VCDS and a tool kit (http://shop.ebay.co.uk/?_nkw=tool+kit).
Thank you in advance, any help is much appreciated :-)
*** Sorry I forgot to mention that I had 2 new front tyres fitted prior to the knocking noise, and when I collected the car the steering was off center, although this seemed to rectify itself!!! The steering has only recently started making a noise.