08 E63 wobbling under hard power?????? Advice?
#26
Senior Member
Thread Starter
Join Date: Feb 2014
Location: SC/NoVa
Posts: 420
Likes: 0
Received 3 Likes
on
3 Posts
13' E350 4matic, 08' E63
Definitely don't waste time on the alignment until you have the ride height the way you like it.... The toe changes quite a bit between a high or low suspension setting.
I gave up on "C" suspension setting (comfort) because it uses the dynamic ride adjustment at ~68mph and lowers the car another 20mm or so... Whatever you "think" your alignment settings are at static ride height will change at highway speeds.
I keep the car in "S1" sport-1 mode. There is NO dynamic ride adjustment in S1 or S2 so you've got a better chance of consistent alignment at any speed.
-G
I gave up on "C" suspension setting (comfort) because it uses the dynamic ride adjustment at ~68mph and lowers the car another 20mm or so... Whatever you "think" your alignment settings are at static ride height will change at highway speeds.
I keep the car in "S1" sport-1 mode. There is NO dynamic ride adjustment in S1 or S2 so you've got a better chance of consistent alignment at any speed.
-G
Drivers Front, looks like normal comfort height----------
Drivers Rear ---- in person looks like lower than the normal Sport 1 or 2 setting
Passenger Rear ---- in person looks a tad lower than Sport 1 or 2 normal but its definitely higher than the other side.
Last edited by SheriffDep; 12-06-2014 at 02:04 AM.
#27
MBWorld Fanatic!
Join Date: Mar 2011
Location: The Granite State
Posts: 1,835
Likes: 0
Received 12 Likes
on
8 Posts
.
It might be easier to talk about ride heights if you took measurements from the ground to the top of each wheel arch....
I've collected those values on my own car and can compare with you.
Remember, on the rear there is no way to adjust individual heights...there is only a single sensor. However, the front struts will have a dramatic effect on the cross-loading. When I played with my ELM I could get rid of rear side-to-side variations by making slight tweaks to either the LF or RF heights. It takes some experimentation, but I was able to get a good overall stance and got all the values within about 1/4" of each other.... For an E55 that's actually pretty good.
EDIT: also...its a pain to get the AirMatic to change between modes and heights just sitting in the driveway. Sometimes you have to open and close the drivers door, engine running, put the car into gear, etc. otherwise the bags won't inflate/deflate the way you expect. Every time I made ELM adjustments, I would just drive the car around town for a while to settle the suspension correctly...then use my tape measure to collect fender heights.
-G
I've collected those values on my own car and can compare with you.
Remember, on the rear there is no way to adjust individual heights...there is only a single sensor. However, the front struts will have a dramatic effect on the cross-loading. When I played with my ELM I could get rid of rear side-to-side variations by making slight tweaks to either the LF or RF heights. It takes some experimentation, but I was able to get a good overall stance and got all the values within about 1/4" of each other.... For an E55 that's actually pretty good.
EDIT: also...its a pain to get the AirMatic to change between modes and heights just sitting in the driveway. Sometimes you have to open and close the drivers door, engine running, put the car into gear, etc. otherwise the bags won't inflate/deflate the way you expect. Every time I made ELM adjustments, I would just drive the car around town for a while to settle the suspension correctly...then use my tape measure to collect fender heights.
-G
Last edited by GregMB; 12-06-2014 at 08:27 AM.
#28
MBWorld Fanatic!
FYI- Hub to fender is a more accurate way to measure ride height. Different tires and rims will = different readings from car to car.
My car usually doesn't adjust until I turn it off and get out. The I hear a loud hissing sound and scared me thinking I had another airmatic blowout.
My car usually doesn't adjust until I turn it off and get out. The I hear a loud hissing sound and scared me thinking I had another airmatic blowout.
#29
MBWorld Fanatic!
Join Date: Mar 2011
Location: The Granite State
Posts: 1,835
Likes: 0
Received 12 Likes
on
8 Posts
.
FYI- Hub to fender is a more accurate way to measure ride height. Different tires and rims will = different readings from car to car.
My car usually doesn't adjust until I turn it off and get out. The I hear a loud hissing sound and scared me thinking I had another airmatic blowout.
My car usually doesn't adjust until I turn it off and get out. The I hear a loud hissing sound and scared me thinking I had another airmatic blowout.
-G
Last edited by GregMB; 12-06-2014 at 10:21 AM.
#30
Senior Member
Thread Starter
Join Date: Feb 2014
Location: SC/NoVa
Posts: 420
Likes: 0
Received 3 Likes
on
3 Posts
13' E350 4matic, 08' E63
DR-26 7/8in, PR-27in, DF-27, PF-26 7/8
Then drove it this morning and cycling the system then put in Sp1
DR26, PR-25 7/8, DF-26, PF26 so seems like this time it all worked out right. Will keep checking it up.
DID 2 from stop digs today. Tires hooked, kinda skipped but was straight. Then as 2nd gear pulled the car swayed front left to right into third and about 75mph straightened out to keep pulling. So still working this issue. but car is going into shop tomorrow for (lip, diffuser, painting front and rear bumper, euro clear side markers, SRF brake flush, SS brake lines, Caliper painting and possible hood painting) so after all this I will raise tire press to 42 and see what that does.