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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 03-27-2012, 04:53 AM   #1
Registered User
Join Date: Feb 2012
Location: London, UK
Posts: 17
My Ride: e46 M3 Cabrio
SMG II gear change problems

Ok guys thought id post over here to see what you knowledgable peeps might think

Long story short.
I have a 2002 m3 Convert.

I recently had the diff replaced as central bearing had issues and leaking seals too.
At the time I had terrible judder
and when they took out the clutch to replace it they found the clutch so badly worn that it was frayed at the edges

New clutch fitted

So work done.
1. Diff fitted
2. New clutch
3. SMG fluid replacement for new
4. Diff oil - and friction modifer
5. SMG adaptations
6. New Salmon relay

Heres the problem

On full power - that is gunning it between
2nd into 3rd
3rd to 4th

I get a lag - the gear engages after a visible pause in power - and there is a sound from under the car - best described as a 'clacking' sound
like if you beat two pieces of two by four wood planks

There is a double 'clack' - and pause as car goes into gear between 2nd -3rd and 3rd - 4th.

All other gears are perfect and no problems, sounds etc.

Blipping on downshifts are fine

Downshifting into 3rd or 4th - does have a delay and car does not select the lower gear until its happy in the problem gears only.

In other gears the downshifting is fine...

Can anyone throw any suggestions

Someone mentioned to me syncromesh ?

Any thoughts appreciated.

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