Z4 2.51 slight splutter

[Stevep1]

Good afternoon
I bought my z4 last year and to be honest, it’s great but what started to happen is that when slow down but don’t change my gears down, meaning my revs are low, I get a bit of a splutter / judder but it does happen in lower gears when at lower revs. People have suggested coil packs, plugs but I don’t want to throw money at it with at least asking other owners for some advice. It doesn’t do it all the time but it’s more often than not.
Thanks
Steve

 

[bigwinn]

Good afternoon
I bought my z4 last year and to be honest, it’s great but what started to happen is that when slow down but don’t change my gears down, meaning my revs are low, I get a bit of a splutter / judder but it does happen in lower gears when at lower revs. People have suggested coil packs, plugs but I don’t want to throw money at it with at least asking other owners for some advice. It doesn’t do it all the time but it’s more often than not.
Thanks
Steve

I’ve got similar Steve

Have just changed coil packs and no change, different MAF also no change so will be looking for air leaks next!

 

[rdm05z4]

If you have been reading post on this forum the first thing, they will mention for most issues is to scan for any codes. This may give members more of a indication of what could be the issue or rule out things. Is it an auto or manual car? If manual maybe you are in to high a gear when you drop the revs (ie slow down).? Post any codes if can so members can help.

 

[Stevep1]

Hi
Mine is a manual. To be honest you know when your in the wrong gear and this is a completely different feeling. It’s an odd one because it can happen in any of the top 4 gears. I was hoping that someone had resolved the same problem to save a lot of messing about.
Thanks
Steve