S500 Flex Disc
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2001 S500 W220
S500 Flex Disc
Hi guys,
I'm here for some DIY advice again. I spent the last 5 hours reading post after post but I can't find anything helpful. So I'm sorry if there is an existing post, but I can't find it...
I have a 2001 S500 and after I changed my spark plugs I realized heavy vibrations. First I thought I messed something up with the spark plugs, so I double checked everything. Sparks plugs looked fine to me so I kept looking around. I realized an increase in torque after I changed the spark plugs so I checked engine/transmission mounts and they are OK. Then I checked the Flex Disc.... they are both cracked and I have to replace them immediately because I'm not going to risk them to break.
While looking around underneath my car I realized that the exhaust system and the heat shield is in the way to get a fully exposed view onto the drive train.
-If I want to change the front and rear flex disc, do I have to take out the exhaust system and the heat shield or can I change the front Flex Disc without too many problems if I don't take everything out?
-Do I need any special tools?
-Any special torques I should know about, or is "tight" good enough for the six bolts on the Flex Disc?
- could anyone please tell me the steps to change the Flex Discs or does anyone have some pictures? Just would make it so much easier for me if I would already know what I have to expect.
While I'm already down there taking everything apart, I'll change the transmission mount too. (just in case)
I would highly appreciate some information's before I'll do the job. If there are no pictures available yet, I'll make sure I'll upload pictures and work progress in a couple of weeks.
Thank you in advance.
I'm here for some DIY advice again. I spent the last 5 hours reading post after post but I can't find anything helpful. So I'm sorry if there is an existing post, but I can't find it...
I have a 2001 S500 and after I changed my spark plugs I realized heavy vibrations. First I thought I messed something up with the spark plugs, so I double checked everything. Sparks plugs looked fine to me so I kept looking around. I realized an increase in torque after I changed the spark plugs so I checked engine/transmission mounts and they are OK. Then I checked the Flex Disc.... they are both cracked and I have to replace them immediately because I'm not going to risk them to break.
While looking around underneath my car I realized that the exhaust system and the heat shield is in the way to get a fully exposed view onto the drive train.
-If I want to change the front and rear flex disc, do I have to take out the exhaust system and the heat shield or can I change the front Flex Disc without too many problems if I don't take everything out?
-Do I need any special tools?
-Any special torques I should know about, or is "tight" good enough for the six bolts on the Flex Disc?
- could anyone please tell me the steps to change the Flex Discs or does anyone have some pictures? Just would make it so much easier for me if I would already know what I have to expect.
While I'm already down there taking everything apart, I'll change the transmission mount too. (just in case)
I would highly appreciate some information's before I'll do the job. If there are no pictures available yet, I'll make sure I'll upload pictures and work progress in a couple of weeks.
Thank you in advance.
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s500 2001
My write-up "W220 Flex Discs, intermediate bearing and centering sleeves replacement DIY" may help.
http://www.benzworld.org/forums/w220...centering.html
Daniel
http://www.benzworld.org/forums/w220...centering.html
Daniel
#5
I don't think the flex disc are the cause of your vibrations after the spark plug change
Maybe a loose plug wire or bad coil
Also check your engine and transmission mounts
Maybe a loose plug wire or bad coil
Also check your engine and transmission mounts
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2001 S500 W220
Tusabes,
like i mentioned in my first post, I checked all the wires and the engine runs absolutely smooth up to 5000 rpm. Vibrations are only present while going over a certain velocity. I checked the the engine mount and it looks good to me.
Also, a loose plug or a bad coil would give me some sort of a code on my laptop.
I'm not sure about the transmission mount but I'll change it while I change the flex discs anyways. Take a look at my flex disc and you'll believe that they cause heavy vibration.
But thank you for your advice
like i mentioned in my first post, I checked all the wires and the engine runs absolutely smooth up to 5000 rpm. Vibrations are only present while going over a certain velocity. I checked the the engine mount and it looks good to me.
Also, a loose plug or a bad coil would give me some sort of a code on my laptop.
I'm not sure about the transmission mount but I'll change it while I change the flex discs anyways. Take a look at my flex disc and you'll believe that they cause heavy vibration.
But thank you for your advice
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Daniel,
I'm also changing everything else that you recommended. Do you remember how long it took you to finish the job?
I also ordered a new transmission mount to change that. I will replace both flex discs and the center support.
Do you have any part numbers for the clamps from the exhaust system? mine are pretty rusted so I might have to cut them open but I can't find any part numbers to order new clamps.
I'm also changing everything else that you recommended. Do you remember how long it took you to finish the job?
I also ordered a new transmission mount to change that. I will replace both flex discs and the center support.
Do you have any part numbers for the clamps from the exhaust system? mine are pretty rusted so I might have to cut them open but I can't find any part numbers to order new clamps.
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s500 2001
I didn't time myself because I could only work when I had some free time available. I regard it has a hobby, therefore, I prefer to work at a very relaxed pace.
Exhaust Flange - Converter to Muffler 126-492-08-45
Exhaust Bolt - 8 X 1.25 X 58 mm 129-990-04-10
Seal Ring 2024920281 or 2014920281
Please let a dealer confirm the part numbers before you place the order.
Daniel
Exhaust Flange - Converter to Muffler 126-492-08-45
Exhaust Bolt - 8 X 1.25 X 58 mm 129-990-04-10
Seal Ring 2024920281 or 2014920281
Please let a dealer confirm the part numbers before you place the order.
Daniel
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2001 S500 W220
Daniel, I just received most of the necessary parts by now so I'll do the job this Saturday. I hope I'll get it done in one day. The shop where I can rent a lift is only open from 10am-5pm so I keep my hopes up I don't have to leave my car there and finish it another day.
Just one more question: Do I have to balance the drive-shaft afterwards or not? I hope I don't because I'm living in the desert and I have no clue who could do that job.
Just one more question: Do I have to balance the drive-shaft afterwards or not? I hope I don't because I'm living in the desert and I have no clue who could do that job.
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s500 2001
You have made progress, and now comes the exciting part of your endeavour!
If you mark the front and rear shafts properly (see point 7 of the write-up) and reassemble the splines in their original grooves, then the driveshaft would probably be as balanced as it had been before the replacement of the flex discs.
I would also recommend that you take pictures of the orientation of the discs and paint markings on the flange of both the front/rear propeller shaft and the flange of the differential/transmission before you remove them to ensure that they remain in phase when installed (point 9).
My car's driveshaft did not need any balancing.
I wish you success and satisfaction.
Daniel
If you mark the front and rear shafts properly (see point 7 of the write-up) and reassemble the splines in their original grooves, then the driveshaft would probably be as balanced as it had been before the replacement of the flex discs.
I would also recommend that you take pictures of the orientation of the discs and paint markings on the flange of both the front/rear propeller shaft and the flange of the differential/transmission before you remove them to ensure that they remain in phase when installed (point 9).
My car's driveshaft did not need any balancing.
I wish you success and satisfaction.
Daniel
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2001 S500 W220
Sorry for the late reply, but I was really busy.
I repaired my car last weekend and I have to say: the car lift was really handy. The job was way easier than expected (if you have the right tools). We finished the job in only six hours.
I'm not a mechanic but it was a really easy job. Just make sure that you mark everything before you take it apart so the drive train stays balanced.
Everyone who thinks about doing it yourself: go ahead. With Daniels DIY list, it is really easy.
My car runs like a champ again w/out any vibrations.
Thank you, Daniel for your awesome DIY-manual
I repaired my car last weekend and I have to say: the car lift was really handy. The job was way easier than expected (if you have the right tools). We finished the job in only six hours.
I'm not a mechanic but it was a really easy job. Just make sure that you mark everything before you take it apart so the drive train stays balanced.
Everyone who thinks about doing it yourself: go ahead. With Daniels DIY list, it is really easy.
My car runs like a champ again w/out any vibrations.
Thank you, Daniel for your awesome DIY-manual