Knock when accelerating - Diff? Drive shaft? Bushes?

DJW · Post by **DJW** » Fri Feb 23, 2018 9:55 am

Hi, gents,

I'm getting a knock every now and again on the zed. Sometimes after a gear change, but I don't think it's the gearbox as I'll also get it when I'm not changing gear - the common denominator is that I'll be accelerating in some way when I get a knock - just the one knock - Any thoughts on where I should start? What might the most likely offender be?

Thanks all

Cheers

synthedup · Post by **synthedup** » Fri Feb 23, 2018 10:09 am

DJW wrote: ↑Fri Feb 23, 2018 9:55 amHmm i have the same issue! I have changed all anti roll bar bushes and links and still have it. Normally notice it at slow speeds when stopping and starting in traffic.

Im thinking a engine/gearbox mount maybe?

Hmm i have the same issue! I have changed all anti roll bar bushes and links and still have it. Normally notice it at slow speeds when stopping and starting in traffic.

Im thinking a engine/gearbox mount maybe?

ph001 · Post by **ph001** » Fri Feb 23, 2018 10:34 am

Propshaft donut coupling would be first thing to inspect - quite common and well documented on here. Not a difficult job but you do need to drop the exhaust IIRC... https://z4-forum.com/forum/viewtopic.ph ... ilit=donut

synthedup · Post by **synthedup** » Fri Feb 23, 2018 11:13 am

ph001 wrote: ↑Fri Feb 23, 2018 10:34 amPropshaft donut coupling would be first thing to inspect - quite common and well documented on here. Not a difficult job but you do need to drop the exhaust IIRC... https://z4-forum.com/forum/viewtopic.ph ... ilit=donut

Good call

DJW · Post by **DJW** » Fri Feb 23, 2018 3:54 pm

ph001 wrote: ↑Fri Feb 23, 2018 10:34 amPropshaft donut coupling would be first thing to inspect - quite common and well documented on here. Not a difficult job but you do need to drop the exhaust IIRC... https://z4-forum.com/forum/viewtopic.ph ... ilit=donut

Cheers - will take a look at it!

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