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Discussion Starter #1 (Edited)
We are now one day into the suspension refurb on our Touring.
Whoever says it can be done in one day is very ambitious.

Took us 2 hours to assemble the 4 new legs on the bench. 4 hours to remove the 4 legs from the car, including removing the EDC wires front and back (no error code came up, after a successful EDC deactivation). We lost one hour freeing the right rear lower shock attachment that was badly stuck in the hub.

Once all was off, another 2 hours to fit the rear legs, and reconnect the self leveling system.

For the public interest:
-If you *Think* something will give you trouble, replace. Don't even think anything will come off without a fight after 13+ years exposed to the elements. Rear was worse than front. SLS was particularly nasty.
-You can reuse the front hubs, bearings, locknuts, and dust caps. I bought new ones (locknut and dust cap, that is) anyway, but the old ones were reuseable, after careful removal.
-The 46mm locknut on the front axle is *hard* to remove.
-Use a lift. No way I could have done it without a lift, and I did that with a 40 years' experienced mechanic.

Back at it tomorrow, I hope to wrap it up. I'll update when finished.
 

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Discussion Starter #4
EDS Removal: Done!

We finished the EDC removal this morning.
Fitted the 4 legs, connected the rear hydraulic lines, re-attached all the connectors in front, minus the EDC stuff that is nicely plugged and covered away from harm.
Adjusted the stering box at the same time to remove a bit of play.

The car drives again, no longer jumps from a bump to a pothole.

With the 540i sport setup, the stiffness is a hair below the previous sport setup (as I remember it), way firmer than the P position. We can finally lay in a curve with full throttle, despite mid-turn bumps. No juddering while braking, no kickback in the turns.
The dash switch is gone too, with a blank in it splace. No one would tell EDC was there without taking a spanner to the car.

So, objective attained. 13 hours, 2 people working who have a clue as to what they are doing, correct tools and a lift.

Next on the line will be the sump gasket, water lines, air lines, injectors; once my wallet gets out of ICU....:haha:
 

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Thats brilliant mr K..

Brave new world :D
 

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Sorry to be a bit dim here, but what's actually involved in removing the EDC? Is it a straight swap with different suspension? I was under the impression the front mounts will only accept an EDC shock?
 

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Excellent work! congratulations!!!!!
:cheers:
DTW:
the whole front leg has to be changed as the edc leg does not take an insert.
Same goes with the top mounts etc. Even rear legs have to be changed.

Sakke
 

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Now thats one lovely garage/workshop/study you did the job in !

If I could I'd set up the equivalent in my house.

You must be one very pleased M5 owner right now !

Cheers

Erik
 

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Discussion Starter #9
I *am* very pleased.
I still have a long list of things to do, the car is an ongoing project, and a daily driver (belongs to my wife). I can devote more time/money to it, now that the 911s are all gone.
I wish I had this workshop. It is my mechanics place. He is a long time Porsche specialist, and master mechanic. He has his own lathe, 3-axis mill, welder, blasting cabinet, etc, etc... builds 900+ HP 935 engines.
Mine is not that far away, and will hopefully have the same character.
 

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Very nice work! Can I ask if the 540 Sport legs give the same steering/geometry as the M5? And are they a straightforward fit? My local BMW dealer is not very helpful in these matters...

Presumably if you wanted in the future a damper upgrade would be resonably economical. I'm in urgent need of new front dampers, and feel a little reluctant to pay BMW's recently inflated prices for EDCs, but I want to preserve as much of the road behaviour of the car as possible.
 

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Discussion Starter #12
Geometry is the same with the 540 legs. Upgrades for the fronts is a cartridge away. The rears are more tricky because they are self-leveling. But in my case, the setup is well balanced, being all for the same car.
 

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Well done!

I'm ready for a suspension change too on my 95' M5 touring. You've used the 540i sport setup? Are these parts you can just buy at the dealer? Part numbers? prices?

THX in advance
 

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Discussion Starter #14 (Edited)

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Did the 540 legs require using 540 wheelbearings and brake components too? Did you have to add those to the cost of new struts? Sorry to be asking so many questions, but I admire your actions, and would like to know what I might be doing if I opt for similar.

Thanks very much
 

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Discussion Starter #16
You re-use your hubs, bearings, discs, calipers. Of the front wheel hub assembly you only need to change the rear dust cap, the locknut and the front dustcap.
 

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:lightbulb: Thanks very much (why isn't everybody doing this?:M5thumbs:)
 

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Because its not original, car looses a great of its resale value (at least in Sweden) and a fully functional EDC system is quite something!

Lantz
 

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Discussion Starter #19 (Edited)
That is ture to a point. What when no parts are available anymore? I am quite sure EDC will be NLA before the std front struts.
Once the switch is made, maintenance of the non-EDC is *much* cheaper as well, a thing to consider, and a sales argument. Would you buy a car when there is a real chance of it costing you an additional 5K Euros within the first year, and the seller not budging on price because it works at the time of the sale?
When I sell my car the next owner will of course get the EDC with it, as nothing is irreversible in the modifications we made.
 
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