front knocking on 306

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robind - 16 Dec 2004 15:55 GMT

i have a knocking noise coming from the front left of my 306.

i am not sure if it is one or two problems.

firstly when driving, especially when driving slower (round town) there is
a knocking coming from the front left. it is worse on bumpy roads but
hardly happens at all on fast roads.
When turning left there is a slight grinding noise which is worse the
tighter the corner.

secondly when driving in gear (and only in gear) at low revs the knocking
noise is quite loud, but not apparent when accelerating . at higher speeds
the noise is not apparent.

i have been told i need a new back axle as the bushes have gone and have
already had a new carrier bearing(bottom bearing) and driveshaft on the
left.
it seems like the driveshaft is not being held in place properly. could it
be the wishbone/anti roll bushes/steering rack/ droplink?

pls help as my car sounds like a precussion section!

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davek - 16 Dec 2004 17:10 GMT

> firstly when driving, especially when driving slower (round town) there is
> a knocking coming from the front left. it is worse on bumpy roads but
> hardly happens at all on fast roads.
> When turning left there is a slight grinding noise which is worse the
> tighter the corner.

If you take it to ATS, KwikFit or the like and put it on the lift, you will
probably see that the nearside driveshaft boot is split which has allowed
road muck into the constant velocity joint which is now buggered.
DaveK.

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JC - 27 Dec 2004 14:29 GMT

I had the same problem with my 306 dturbo, albeit without the grinding noise
when cornering. The grinding noise when cornering would suggest the wheel
bearings are on the way out, although i cant be sure on that one so best to
get it checked out. On my car i replaced the anti-roll bar drop link (simple
job - ten mins), which, as it is plastic, wears out or bends very easily,
this solved the problem for me and my car is beautifully quiet now!! The
drop link only costs about a tenner and is easy to fit so its worth a go.
Hope this helps.

> > firstly when driving, especially when driving slower (round town) there is
> > a knocking coming from the front left. it is worse on bumpy roads but
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> Checked by AVG anti-virus system (http://www.grisoft.com).
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