[nicobaires]

I got a quote from this guy I use occasionally to do both my flex discs for $140 in labor. Do you guys think that is reasonable? I tried to do them myself but don't have the room physically under the car with jacks so I opted out.

 

[Franasia]

They're a relatively easy and quick replacement on a lift ... probably an hour to do both. The front one is more important to replace, the rear one not so much. $140 sound a little high to me but not outrageous. Hope it helps.

Cheers

 

[Matt L]

It is more than a one-hour job. $140 for labor doesn't sound all that bad.

It is important that they be installed correctly and that all of the screws are torqued properly. If not, you could experience an expensive failure.

 

[nicobaires]

What are the torque specs? It looks easy but without a lift. It's way too much

 

[Matt L]

I would have to look it up, but the specs also should be in one of the DIY threads.

It isn't too hard to do it. I didn't remove my transmission mount, but that would have made the front disk a lot easier. I recommend removing it.

 

[nicobaires]

Maybe I should change the tranny mount as well then

 

[Kajtek1]

I did front flex on my sedan laying down in mud pit I build on the edge on old, filled up swimming pool. It is over 1 hr job doing it this way with hand wrenches, but I would believe on stands with access for power tolls it should take much shorter.
I've seen picture that hard access to the bolts is way easier when having car on stands you can remove the transmission mount and lower whole thing.
Still $140 doesn't sound bad in my area where dealer charge $220 for replacing light bulb in the cluster.

 

[jlbarnes]

What are the "flex disks" ? Where are they and what do they look like and what do they do? This is a real request. I have not heard the term before. Thank you for your reply.
e320 2000 is my MB.

 

[daisound]

barnes,
Check out your A & B service steps, it were there to inspect every time. It is the link between the drive shaft from the engine to the transmission and from there to rear axle. They work the same as U joint. If you have consistent vibrations while driving at certain speed you may have that problem. I will not worry about it unless your car is over 100K miles. Search in stickies for more info.

 

[Matt L]

Well, they take the place of the front and rear U-joints, but they only work with a very small angle. The Benz has a fixed rear differential, so the propeller shaft is not moving around much.

The flex disks are reinforced rubber. U-joints are hard metal and will transmit more vibration. Flex disks give you a quieter drive line.

 

[nicobaires]

If you do a search there is al ink on how to change them with pics. I'm changing mine because i get a vibration above 60mph and it feels like it's coming through the seats and center console. I've replaced tires, balanced, front end parts, shocks etc but it's still there so hopefully changing these and an alignment should take care of the vibration

 

[gradyg3]

vibration over 60mph can also be caused by the front control arm bushings, one of which is a rubber bushing filled with hydraulic fluid that once dryrotted and cracked leaks out and causes vibrations around 55-60mph.

 

[nicobaires]

wouldn't that cause vibrations to the wheels and through the steering wheel?

 

[BADwayz]

Also called a guibo, here is the difference between a bad guibo and a new one (though this guy waited way too long before changing his)

 

[nicobaires]

Can anyone check to see how much i need to torque the bolts on the flex discs please?

 

[Matt L]

There are two specs listed, depending on the size of the bolts used:

M10 - 40Nm
M12 - 60Nm

 

[nicobaires]

Well, went to change the flex discs with someone helping me and we realized that the discs on my car have 8 holes and not 6 like the ones I received from Autohaus.

Are the E55's different than the other models???

 

[Check Codes]

Well, went to change the flex discs with someone helping me and we realized that the discs on my car have 8 holes and not 6 like the ones I received from Autohaus.

Are the E55's different than the other models???

In almost all significant respects, they are indeed.

It looks like autohausaz's online catalog lists the wrong ones for you. They should take care of you because of it. I believe this is the right part:

Lemfoerder 8-hole Flex Disc

 

[nicobaires]

yup, thats it, thanks!!