A question .. I understand the function of a flywheel, but I have no clue what a dual mass flywheel consists of.. dual means two ..does that mean the flywheel is composed of two different metals ? Why not use a standard 'run of the mill' type ? Why replace flywheels unless the teeth are broken or it's warped?

I'm still trying to learn as much as I can !!!

 

If you Google "dual mass flywheel" it will give you all the info you need on this.

 

Because DM flywheels cannot be machine-surfaced or "trued," they must be replaced, about $800 for the part.

Do yr Google research and y'll see why.

 

Thanks !! It makes sense now. "Alice" has a little chatter while in neutral with the clutch out. Once the pedal is 1/2 way engaged, the rattle is gone...tranny feels fine .. This is a great forum.I'm comfortable turning wrenches on muscle cars etc, but the Mini is a different breed of animal ( family bought my 04S as a christmas present to me.. I feel lucky that the one they chose hasn't been driven hard or raced ..60K with 2 premium packages )

 

Mine has that same chatter. Is it a wear problem or the nature of the flywheel?

 

I have no clue MiniC..

 

Both my S's with stock flywheels have had that chatter.

I think its just the nature of the beast.

 

Here's a good video on the dual mass flywheel: http://www.zf.com/multimedia/zmsFunk...nglisch_V3.wmv

It's got a lot of moving parts so you can see why it might start chattering...

 

Outstanding vid !! Mine can chatter all it wants . If it says K M A ..then I'll get concerned !! Also ... do you guys find people in other mini's wave ? It happens all the time in my C-4 but maybe some Mini owners are a bit shy ? I wave .

 

Thanks for the information and the video. As I see more MINIs on the road, I find that fewer people wave back.

 

My 07 MCS had its DMF replaced because it was making a knocking sound. Shortly after that I decided I couldn't take Honolulu's traffic with a stick anymore and got an 08 automatic.
Honolulu is full of Minis and usually the only place I get waves are while driving on Hickam AFB. The rest of Honolulu people seem to have blinders on, they're afraid to look at you or your Mini.

 

Yeah, nobody waves anymore... too many young college girls or people out of the "know" buying MINIs now... it seems most people these days buy them because they are "cute" or get "good" gas mileage. Ick.

 

Thats what ya get for buying a 2G MINI.

 

Same thing here in Miami, 6 times zones east of you

Everyday I see no less than 50 MINIs, including classics.

 

Getting the flywheel and clutch replaced next week. I had to take the tech in the car with me to "show" them the problem. Apparently there is a service bulletin, but it depends on when the car was made. Hopefully this will take care of that issue.

 

hey, I brought my 2005 cooper S for service at around 18,500 miles because I heard a chattering noise when the clutch was released and the car in neutral. I was told everything was fine with the car. The noise has significantly gotten louder so I brought the car in at 60,000 miles. I have now been told the flywheel and clutch need to be replaced. since it is out of warranty, I'm currently trying to get mini to pay for the repair. Were you getting the same chatter? Also, if you let the clutch out slowly into neutral there is usually no chatter.

 

I read it somewhere here, but now can't find it. Is it true that the MC has a regular flywheel and not a dual mass flywheel?

 

Well my situation was the same as yours. When in neutral and the clutch let out the rattling would take place. It was more noticeable when the car was warmed and driven. Mine had 45K miles on it. Not sure if the 2005 came with the Dual Mass flywheel, but yeah they did replace it.

 

According to realoem.com (http://www.realoem.com/bmw/partxref.do?part=11227561765) it shows all non-S R55/R56/R57 models as having a "twin mass flywheel". So it looks like your source may have been incorrect.

 

I checked realoem. The picture is labeled twin mass flywheel, but the actual part listing says flywheel, wheras the part listing on the mcs says twin mass flywheel. I'd tend to trust the part listing and not the picture as it looks to just be a copy of the mcs picture.