2008 2.3L Manual Transmission - Jerky at low RPM/low gear

[canyonarrow]

Hey everyone,

As the title says, for the last week or so, my 3 has seemed especially jerky at low RPM, in 1st and 2nd gear. This is always an issue with a manual transmission (driveline slop as the engine changes between pushing and pulling on the transmission); but mine seems to have suddenly gotten much worse. My car has 119,000 miles on it. It's always done it to some extent but now it's bad enough that I can actually see the tachometer fluctuate up and down as it happens. I can take a video if that'll help.

Maybe it's a motor mount? I thought I was lucky and didn't have the early mount failures I've seen many posts about. Any other ideas?

Thanks!

-Mike

 

[brandini]

Passenger motor mount, poke it with your finger and look for drool underneath it, if your finger goes in or if it's drooling, replace it with a ROCA solid rubber version and be happy.

Also check all lca bushings and ball joints for excess play.

The lower rear motor mount is also a known weak guy but doesn't break, just doesn't give much feel... pick your favorite brand for an upgrade.