View Full Version : HELP.....E39 540 Vibration!


gsibble
08-23-2005, 10:24 AM
OK. So, I've already posted about this and my car is even in the shop right now for some other stuff.

I had my clutch replaced a little while ago (2-3 months or so) and now I'm getting a really bad vibration in my shifter and pedals. It's entirely RPM dictate (IE. get's MUCH worse at high RPMs), comes whether or not I'm in motion, and does not change if the clutch is in or out or if the car is in gear or not.

It feels awful. It feels like the fan is on the right side of the engine and it's throwing it around. And guess what BMW tells me?

On a car with 90k miles, THAT'S NORMAL.

OK. If it weren't getting worse by the week, MAYBE it would be normal. But this was NOT there until a month or so ago and it's been getting a lot worse and quickly. And the bmw tech basically refused to even look at it!!!

So, I think I'm going to have to fly blind and try to fix it without them diagnosing it. Assholes.

Suggestions? Flywheel? Tranny mounts? What? Thanks!

-George

fkong777
08-23-2005, 01:05 PM
Hell no it is not normal.

if it is rpm related. It can be a defective clutch or pressure plate. Who knows maybe even the fly wheel wasnt mounted back correctly. They are suppose to warranty their work.

I would stop driving the car and get it back to the dealer. This type of vibration can cause engine and transmission damage.

If the dealer did it then talk to the GM and tell them that if the transmission falls apart because of installation error. and another dealer tells me that it is cause by installation error. you will have your attorney to recover the cost for Damage / loss of use / loss of wages due to you time wasted getting the car fix. You will also report them to BMW NA and Better business bureau for ruining your car.

I believe each dealer mechanic is responsible for his own work. It sucks but seem like no one will listen until you threaten them with a law suit.

Lscman
08-23-2005, 01:26 PM
Just a comment......

If vibration has worsened over time, it may be caused by loose pressure plate bolts or loose flywheel. If the flywheel or main seal was not replaced, it's doubtful that the flywheel bolts were disturbed, so they should not be loose. With respect to pressure plate and clutch assy, it seems that E39 pressure plates can work loose unless locktite is used and proper torque applied during tightening.

A really talented mechanic WILL be able to check pressure plate bolt torque through the hydraulic slave cylinder hole in the bell housing using a mirror. One thing is for sure...I'd use duct tape to secure the socket to the 1/2" extension to avoid dropping it inside the housing. If one or more bolts are found loose or missing, the job becomes more challenging. Tightening bolts to specified torque using this procedure is no problem and it's a 1 hr job. I am not sure if a missing bolt can be fished out of the bell housing without pulling the tranny. It would be a real challenge with a magnet on one of those fancy extensions. Trying to extract a partially loosened bolt to apply locktite to the threads and reinstall it through the slave cylinder hole would take lots of skill and some luck. The crankshaft can be rotated to position each bolt for access thru the slave cylinder hole.

Good luck.

Lscman
08-23-2005, 01:32 PM
So....did you have a new flywheel installed?

Just a comment......

If vibration has worsened over time, it may be caused by loose pressure plate bolts or loose flywheel. If the flywheel or main seal was not replaced, it's doubtful that the flywheel bolts were disturbed, so they should not be loose. With respect to pressure plate and clutch assy, it seems that E39 pressure plates can work loose unless locktite is used and proper torque applied during tightening.

A really talented mechanic WILL be able to check pressure plate bolt torque through the hydraulic slave cylinder hole in the bell housing using a mirror. One thing is for sure...I'd use duct tape to secure the socket to the 1/2" extension to avoid dropping it inside the housing. If one or more bolts are found loose or missing, the job becomes more challenging. Tightening bolts to specified torque using this procedure is no problem and it's a 1 hr job. I am not sure if a missing bolt can be fished out of the bell housing without pulling the tranny. It would be a real challenge with a magnet on one of those fancy extensions. Trying to extract a partially loosened bolt to apply locktite to the threads and reinstall it through the slave cylinder hole would take lots of skill and some luck. The crankshaft can be rotated to position each bolt for access thru the slave cylinder hole.

Good luck.

gsibble
08-23-2005, 02:12 PM
The flywheel was not changed......so what does that mean? Should I have them open it up and inspect it all? I'd hate to have to pay for an inspection of the components if there wasn't a problem.

I wanted to get a lightweight flywheel anyways so I figure this is the right time for it.

-George

gsibble
08-23-2005, 06:50 PM
I got my fan clutch replaced....it was loose, but it didn't fix the vibration. Did fix my fan noise issue though.

-George

gsibble
08-31-2005, 11:17 PM
Now I got my damn engine mounts changed and it's still not fixed.....time to open up the damn transmission.

-G

DMZ
08-31-2005, 11:42 PM
Did you check on the transmission mount?

gsibble
08-31-2005, 11:44 PM
Both the dealership and the mechanic checked it.....they said it was fine.

-G