small thud when changing gear from rear

Post Thu Sep 07, 2006 10:48 pm

what ya reckon it is then??

im leaning toiwards rear axle bushes but not looked yet so could be wrong

any other ideas???

318i touring by the way

Post Thu Sep 07, 2006 10:55 pm

do these have rear trailing arms? could be the bushes on those too.

Post Thu Sep 07, 2006 10:57 pm

yep they do
this true

gotta be them or the main axle or diff i reckon

Post Thu Sep 07, 2006 11:46 pm

The wife's 316i had this problem and it was the trailing arm bushes.

Cheers,

Iain T

Post Thu Sep 07, 2006 11:50 pm

Templ8e30 wrote:The wife's 316i had this problem and it was the trailing arm bushes.
Iain T

You sure? Very unusual for these to go.

Post Fri Sep 08, 2006 12:13 am

just replaced mine on the impala.. but to be fair they are 45 yrs old! lasted pretty well when you consider...

Post Fri Sep 08, 2006 9:22 am

Mine "thunks" sometimes, and has had the rear axle bushes replaced, but my diff bush has seen better days....

i'm thinking diff bush, but wont know until i get it off for a look.

after i've done the steering rack, and topmounts, etc.

ah the joys of e30's

Post Fri Sep 08, 2006 9:41 am

No its the diff bush! My old M10 used to do this and when Linwar replaced all of its re-bushes they showed me the rear diff one, looked fine when it was on the car, when it was off it was a different story!

They also told me that rear traling arm bushes don't fail, just degrade slowly.

Post Fri Sep 08, 2006 10:01 am

I'd say diff bush as well.

Post Fri Sep 08, 2006 10:06 am

yep i also say diff bush, 320i i had while back had the problem, i had the garage doing the mot do the bush for me after that it was fine

Post Fri Sep 08, 2006 10:40 am

cheers lads
will have to investigate later today or over weekend

so how do ya do the diff bush??

is it diff cover off and press the bugger out or can i do it meself??
also how much are they??

will the rear of a 320i diff fit the 318i??

Post Fri Sep 08, 2006 10:53 am

Brianmoooore wrote:
Templ8e30 wrote:The wife's 316i had this problem and it was the trailing arm bushes.
Iain T
You sure? Very unusual for these to go.

Positive, I replaced them myself and the 'thunk' disappeared.

Cheers,

Iain T

Post Fri Sep 08, 2006 10:57 am

as long as there both 6 bolt (or 8 ) it should.

Post Fri Sep 08, 2006 11:10 am

daz when they did mine they took the diff cover off to replace it