Audi A3 8V 13 plate shaking

[stu126]

Hi All

Would someone know how to fix this problem or advice me what to do, I have Audi A3 8v 13 plate, the coil light comes on and the engine management light. the car shakes at 25 in 2nd and 35 in 3 and 45 in 4th, the coil light and engine light comes on when I start the car, ive had the Air flow mass meter changed and the boost pressure valve and sensor and the wiring and it still shaking, could you please advice?

 

Thanks

[Fatbloke]

Any errors?

[stu126]

the engine management light comes on and the coil light comes on when I start the car, it feels really slow then is fine and goes fine but that happens often, the car shakes in every gear while I am driving not under load or braking. I am trying to avoid going to Audi as it would be expensive, would anyone have any ideas?

[Fatbloke]

If the EML comes on it should hopefully have stored some error codes. VCDS will read them (there may be someone on here in your area that has it) or a cheap ODB2 reader may show some if not all of them. You need the codes to start narrowing down what the issue is.

[Magnet]

What I’m not certain about here Stuart is whether the EML (and glow plug coil - it is diesel??) comes on as they should before you start it, but goes out when it starts - as it should - i.e. all is well in that department. Sorry but I’m not understanding your description. 

It would appear that your vibration is occurring at a certain rev. point ( different speeds in different gears). Could you confirm what actual revs. this problems shows up? 

Audi dealer? Have you tried an independent in your area, or better still - if it is indeed a diesel - a trusted local diesel specialist. Neither should charge you much to give an opinion on the problem. 

Perhaps you could fill in the detail for us.

Kind regards,

Gareth.