Car shuddering at idle.

[uz]

Hi guys,

I've done a search and can't find anything which seems to be the same as my problem with the car.

When I drive my car (Edition 30), it has an extremely lumpy idle; when it is stationary, the whole car judders noticeably (sometimes quite a lot). I've been trying to figure out what it is; I visited John Austin (Colchester) to have them look at it and the diagnostics showed a 'Cylinder 1 misfire' so they replaced the coil packs for me.

After the cylinder 1 coil was sorted, I sat in the car for a minute and there was no problem; it had stopped shaking. However, after just under 10 miles of driving, it has come back.

Has anybody else had similar problems in theirs?

Cheers,
Uz.

[Ashley g]

Could be another coilpack gone down, I've seen one fail after another a few times. Check with VW if your car is on the list for coilpack replacements for free!

[George]

A tuner I know mentioned he's noticed this with several ED30s. He did suggest that I checked my coilpacks were the latest version (recalled), spark plugs were changed recently and a faultless scan. If you've done those three, I wouldn't worry about it! 

[uz]

Thanks guys, sorry for the slow reply (have had exams). 

My brother took it into a VW dealer after two specialists failed to diagnose and they told me it was a problem with the injectors and spark plugs, but then gave him a quote of £2000. 

I'm not sure what that was, but I was hoping it was only small, and it definitely doesn't look like it. I'll keep you posted if/when I find out.

[Harry171]

Sounds a bit mad, seen similar with blocked breather valves/hoses.

[JMP]

Is your PCV ok? this might affect idle.

[nezquick]

Is your PCV ok? this might affect idle.

Either that or check your dipstick and oil cap to ensure they are completely sealed - if everything is working correctly and you open or pull out either of these that will cause a rough lumpy ideal but can also do some damage if left for a long period of time.