Can anyone help me with my Audi A1 2011 1.6tdi . When I’m driving it in 4th and 5th gear doing speed limit it judders when driving then when it 40 mph or above it seems to be fine. I’ve had new injector new clutch and fly wheel a new stop start battery it’s been serviced and it’s still doing the juddering any ideas please 

What speed limit are you referring to when the juddering occurs Phil? Can you confirm it is manual transmission?

Yh manual transmission mate an 30mph in 4th gear and 40mph in 5th gear but once the speed builds up it’s alright 

I don’t know what rls to try 

5 minutes ago, philip baillie said:

I don’t know what rls to try 

Hi you could try a  diagnostic scan and see what that throws up, if nothing try reading the live data on injectors, EGT sensors, MAF sensor, EGR valve.

Steve.

Ok had RAC out the otherday to change one injector and it wasn’t throwing anything els up on the diagnostic but I’ll get them other things checked thanks

The engine speed at 40 mph in 5th gear must be fairly low. If that engine speed is less than about 1200 rpm you may be expecting too much of the engine under load.

If it’s 5th gear doing 40mph it sits at about 1500 revs or just under 

Thanks. Engine speed is more useful information than road speed. 1500 rpm should be OK so I'd agree it needs looking into as Steve suggests.