Car has become a washing machine/judder

[captaintricks]

HI,

i am a newbie with a 1.9 tdi 02 plate a3, with about 137,000 miles. The problem i have is a juddering, which no one can diagnose. I have searched this forum to see if any one else has exactly the same problem but mine seems ot be a combnation fo everything! So just wanted a pointer please

My was has been on the VAG machine no problems reported. My engine managment light is constantly on. The car judders/vibrates all the time but reduces as you go through the revs.

I have replaced the temp sensor. Heres the wierd part. The car now judders all the time, but lets say i go a few miles away and switch the engine off and i quickly eg go into the shopand get back in the car then sometimes the juddering stops and the car works smooth as a baby! This has made it a nitemare to diagnose as sods law whenever a mechanic gets in it works! I drove it to leeds and back (about an hours journey and went on motorway to test it workd fine)

I dont think its the flywheel, its almost like the car isn't 'breathing' properly. The engine is vibrating and shaking loads. I was wondering if it could be the air flow connector (the air flow thingy has new filters) if the car is revved or used for more then -10 mins or revved then the temperature jumps up to 110.... before I replaced the temp sensor it was getting upto 120.

The question is what to do next, dont want to spend loads as cars only worth a few grand and looking to replace anyways.

any help would be appreciated!!!

 

[Y83OLK]

Could be an injector dying.. not the easiest thing to test on these, as these internal.
Would recommend letting a diesel specialist have a play though, get them to do a leak/ flow test. As High pressure diesel's arent really something you can DIY.

 

[a3nav]

Ive had a similar problem on my 1.8t, It juddered when idling. Found i had a split pipe at connected to my inlet so i would say check for any splits

 

[captaintricks]

by way of an update it was one of the injector parts and managed to get it fixed... didnt cost too much either as it wasnt the whole injector!

 

[NHN]

lack of fuel then, glad resolved, but if there's an engine light on then it always shows a code to signify the faulting system, which vag machine did you plug it into to read for any codes?

 

[captaintricks]

it was a red handheld one I nicked it from my mates garage dunno what he specific machine was but the machine never specified the specific fault on this occassion it just said cylinder 3 misfire anyways it's sorted now
just brought an a4 cabrio so now gotta sell the a3 am sad to see it go !!