PB Blaster vs. The Flex disc
Thread Starter
Senior Member
Joined: May 2004
Posts: 261
Likes: 1
From: Atlanta
1983 240D, 1989 300E
PB Blaster vs. The Flex disc
This weekend my plan was to change my flex disc before I die on the road. Whenever I would accelerate the whole car would grind and shake until I was in 3rd gear. So I jacked up the car put it on stands and went to work. Dropped the cross memeber and attempted to remove the bolts to luck. I even kicked the wrench no sucess. I was told by a friend to use PB Blaster, so I soaked the bolts over night. Came back in the morning still would not break loose by hand. I still had to kick all 6 bolts. Total time if bolts come right off about 45 mins, very easy fix. I have attached a picture of what was left of the old flex disc. And if anyone needs a writeup and pictures on changing a flex disc I can write it up.
Super Member
Joined: Mar 2006
Posts: 597
Likes: 0
From: Anaheim
MB 300E | BMW M Coupe
Originally Posted by shadowgriffen
LOUD and OBNOXIOUS "THUMP" from undearneath, both front and rear...usually when you let off the gas pedal.
How much was the cost for the repair?
-OG
Thread Starter
Senior Member
Joined: May 2004
Posts: 261
Likes: 1
From: Atlanta
1983 240D, 1989 300E
Mine was and grinding thumping at low speeds. It would also make a sort of lunging when shifting from park to reverse and drive. Mine never whined. From research on the board I have also heard it cases road vibration at highway speeds. I have not been on the highway yet to see. Next week is coolant flush and oil leak fix. August is my annual car month where I fix everything and preventative maintenance.
