Saw this in the JCW catalog. Ad sez it can raise springs up to 2 3/4inches. Sure seems like a fast and cheap (perhaps short term) solution to my 84 300sd that is sagging in the back.
picture of the spring adjuster

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84 300SD 274K
38K miles on flatplate heat exchanger and various diesel/veg blends. prior to that 4K miles on unheated veggie blends with kero and DinoD.

I don't believe that hardware as shown will fit on a M/B. The coils are very tightly wrapped, and there is very little clearance between the coils.

If it does fit, you cannot get too much height increase because you cannot spread adjacent coils very far. You might get one inch out of it.

The cost is attractive so you aren't wasting much.

That would be a terrible thing to do to your springs... as it takes away the spring action....
New MB springs are not expensive.... you will love the ride and restored height of your car if you go to the trouble of installing the correct items....If you have a good Spring Shop closeby you can also take them out and have them reheat treated and stretched back out to the orginal unsprung height with no drawbacks ( pun will be recognized by other blacksmiths there...you draw the temper after quenching )....
I used to work at a spring shop that did all the respringing of the trucks for the City of Austin...

I barely got the little "camlock" type spacers to fit on mine. (Only a temporary fix till I got the correct parts and time to do it.)

Leathermang,
Do you have any reference that states what the unsprung height should be and is it different for front and rear? Also, what was the cost of retemper? This is something I have considered.

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Sam

84 300SD 350K+ miles ( Blue Belle )

Suggest you use shims or replace the springs.
New H-D rear springs on my 1985 W126 300SD cost roughly $60.00 USD each from a local supplier, and worth every dollar to level the car.

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1984 Mercedes Benz 300SD
Part: Coil Spring "Rear"
MB# 1163241104
http://www.pelicanparts.com/cgi-bin/ksearch/pel_search.cgi?SUPERCAT_FLAG=Y&make=MBZ&please_wait=N&forumid=&threadid=&command=DWsearch&description=1163241104&x=8&y=8

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1984 Mercedes Benz 300SD
Part: Coil Spring Shim
Note: Rear : 19mm
MB# 1153252444
http://www.pelicanparts.com/cgi-bin/ksearch/pel_search.cgi?SUPERCAT_FLAG=Y&make=MBZ&please_wait=N&forumid=&threadid=&command=DWsearch&description=1153252444&x=11&y=12

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1984 Mercedes Benz 300SD
Part: Coil Spring Shim
Note: Rear : 114mm
MB# 1153252344
http://www.pelicanparts.com/cgi-bin/ksearch/pel_search.cgi?SUPERCAT_FLAG=Y&make=MBZ&please_wait=N&forumid=&threadid=&command=DWsearch&description=1153252344&x=9&y=9

.

Roy, can you make an opinion on OE springs vs. these springs?

Any difference in the quality of the product?

Between now and when I can check my chassis manual... there are some great threads in the archives on this stuff... and I think I have taken pictures of those reference pages on this subject...
What MB does... in its overkill on each item... is to make the springs and then measure the wire diameter..... which relates to compression height at a certain number of pounds of pressure applied to them... ( in foreign weights of course )... but does allow you to see the differences in strength due to wire thickness...
Then there are also pages and pages of different rubber cushions which are used to get the cars level side to side...down to things like if a car has one kind of accessory but not another... amazingly anal retentive...
The funny part of this last paragraph is that if a car is that prone to weight then the weight of the driver needs to be taken into account..
I am all for new springs... but if you have a good local shop this might be faster sometimes... if you coordinate with the shop so their ovens are going the day you bring them in... they may can complete it while you have lunch.. and it saves shipping ... and you could specify the height you wanted them.. in case you carry more in your trunk than others... or have a trailer hitch...

I decided to stiffen up my W115 rear end. The car handled quite well but it was like a rocking horse during acceleration, the rear end sagged a little too esp with a lot of tools and a battery in the trunk (I relocated the battery there). I bought the thicker spring pads but then figured as long as I was going to pull the springs to install them, I may as well stick stiffer springs in there. The original springs were way too soft for the way I wanted the car to handle.
I called Coil Spring Specialties and spoke with Dave, the 2nd generation owner. He said they make springs for the big car companies for prototype cars, as well as lots of classic cars and they have all the factory specs including Mercedes going way back. The cost was about the same as OE springs, something like $135 a set as I remember anyhow by golly they made a set with a larger wire size and the car now sits level and has substantially less rocking horse feeling. I have to warn you though, I now think I need to do the same for the fronts to pair them up then the car will really handle like a roller skate.
Unfortunately I don't really want to put anymore money into the 220 (yet), but darn its nice to be able to tweak something and have it turn out for the better!
see: http://www.coilsprings.com/
(Bookmark this url in your favorites)

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!

They where H-D OEM springs in stock.
I have been driving around with 300 LBS in the trunk since then, and it sets perfect level, with or without the load now.

I take it that these OEM springs are identical to the OE springs from the dealer, in your opinion?

At $60.00 per, they are about 50% of the dealer price.

NO!!! dont put those in there. those came on my old sd and thats the reason why the shock pulled through the trailing arm. (like that when i got it). when i was replacing it i removed them from both sides.

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have no worries.....President Obama swears "If you like your gun, you can keep it

"they are about 50% of the dealer price."

Check with Phil at Fastlane or Performance Products... I think the last time I checked they were about $40 each... which I felt was a good price..

Greg, the dealer gets $150. per for the SDL springs. Caliber might be a bit less. I'm trying to determine if the OEM springs that Roy used are the same as the OE springs, thereby making the OE springs not worth the price.

Some have used Worldpac springs in the past with poor results.

You guys need to get rid of those SDL's and get some cheap 123's... I think there was a thread about how much more expensive they are.... LOL

You don't need to tell us how much more they cost.

Hell, I could buy another decent W123 every year for what this thing consumes.

But, then again, I took it out for a test drive after bleeding the rear brakes today, reaching speeds that you can only dream of.