Possible flexdisk problem. - MBWorld.org Forums

Aug 22, 2016 | 11:04 AM

ultranank

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Newbie

Joined: Jul 2016

Posts: 11

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W220 S320, W126 380SEC, W111 220SE

Possible flexdisk problem.

My S430 has a problem when changing gears under acceleration. If I gently accelerate, it changes gears smoothly, and likewise does so when it's cold. Once warm, what can best be described as a smooth shudder sometimes occurs when changing gears, there is no "clunk." I replaced the engine and gearbox mounts, because they needed to be done, but that didn't solve the vibration problem. I am waiting for a dipstick to arrive so I can check the auto gearbox oil levels, and quick glance of the flexdisk coupling to the tailshaft looks ok, but I haven't as yet crawled under the car and tested it by prising a screwdriver between the fastening bolts to see if there is cracking in the rubber. Does this problem sound familiar to anyone out there, or could it be a problem with the gearbox?

Richard

Aug 22, 2016 | 09:08 PM

jylee

Member

Joined: Feb 2010

Posts: 121

Likes: 13

From: Sugarland, Texas

14 E350; 12 Camaro; 07 Range Rocer; 06 Dodge Ram

I only changed one flex disk, it was on a w140 at the transmission side. The thread and rubber are almost torn apart. I did not have vibration.

Aug 24, 2016 | 07:50 AM

_Ryan

Member

Joined: Dec 2014

Posts: 111

Likes: 14

From: NH/Boston

2004 S600 Biturbo

Check your trans fluid.

Those flex disks usually last forever. I would definitely check them since it's easy to do but most likely they aren't your problem.

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