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2001 E55
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78 Posts
Discussion Starter · #1 ·
I just read the post on DIY shock replacement. How about road springs, has anyone done this themselves? Special spring compressor? Tips? I am looking to do shocks, springs and adjustable rear camber arm on a 97 E420. Any advice from the group would be welcomed. (this job was easy on a Lotus Esprit)
 

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96' E320
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307 Posts
I would not consider this job easy. It took me about 2.5 hours to do all that, but I have a lift and air tools. You should be ok if you've already done a similar job on another car. Good Luck
 

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2001 E55
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78 Posts
Discussion Starter · #3 ·
Thanks Sandro, the rear seems pretty straight forward, but an independent Mercedes shop was saying something about a special spring compressor for the front - any idea? Were they blowing smoke?
 

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ANY spring compressors will work on the W210 front springs. I'm about to fit my new suspension to my E280 and from the research I have already done it should be a 2 hour job (remember I do have my own workshop). A beginner should be able ot do this (with limited tools) in about 5 hours.

It's very straightforward once you get under the car and take a look at what has to be done.
 

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10 GLK 350 4Matic
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704 Posts
Just to reinforce MBS Auto's comment -- the springs have a lot of power when de-compressing and could break quite a bit ( not the least - you ) when suddenly released.

That could cost quite a bit to repair.

Since you've done a Lotus Esprit -- you might be comfortable and experienced, however if any doubt.....

Good luck
 

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2001 E55
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78 Posts
Discussion Starter · #6 ·
Thanks for the input. I think I'll have a closer look and then make a cautious decision. Sure would like to have a bash - I just didn't want to find out half way in that I needed a double secret special tool only available to dealerships. Thanks again.
 

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2006 W220 S430 and 2010 W204 C300 Sport
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227 Posts
For the front, the "special" spring compressor makes the job really easy. Without it, it becomes a little more scary. If you do not use the compressor in the front, you will have to remove the lower control arm pivot bolts. You do this with a floor jack in place under the arm. I disconnect the upper control arm ball joint and raised the front of the car as high as a floor jack would go, also disconnected the front sway bar links and the lower shock mount along with the tie-rod joint from the spindle. Even then with the lower A-arm in full droop, the spring is too long. I ended up using some external spring clamps with the lower arm all the down and I got the spring out. I would not do it the same way again. You can rent the spring compressor from Performance Products for $80/week.
Which a far cry from buying it for ~$500.

The rear is much easier, the lower arm pivot bolt is very short. I did not even have to disconnect the lower shock mount. Raising the lower arm back is a little tricky, but not impossible.

Summary:

Front - need compressor
Rear - no compressor, did each side in less 1 hr.
 

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'00 ML430, '97 E320
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165 Posts
rob_fed - 2/14/2005 2:10 AM

For the front, the "special" spring compressor makes the job really easy. Without it, it becomes a little more scary. If you do not use the compressor in the front, you will have to remove the lower control arm pivot bolts. You do this with a floor jack in place under the arm. I disconnect the upper control arm ball joint and raised the front of the car as high as a floor jack would go, also disconnected the front sway bar links and the lower shock mount along with the tie-rod joint from the spindle. Even then with the lower A-arm in full droop, the spring is too long. I ended up using some external spring clamps with the lower arm all the down and I got the spring out. I would not do it the same way again. You can rent the spring compressor from Performance Products for $80/week.
Which a far cry from buying it for ~$500.

The rear is much easier, the lower arm pivot bolt is very short. I did not even have to disconnect the lower shock mount. Raising the lower arm back is a little tricky, but not impossible.

Summary:

Front - need compressor
Rear - no compressor, did each side in less 1 hr.
I could not find anything on Performance Products web site about tool rental. Is this something they do not advertise?
 

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96' E320
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307 Posts
You can get a spring compressor for about $50 at your local auto parts store.

Side note: remember what we said about the amount of tension the front coils are under!!! Without proper causion they could fuck you up.
 

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2006 W220 S430 and 2010 W204 C300 Sport
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227 Posts
I had to call Performance Products to find out about the spring compressor rental. It is also subject to availability, they only have a few to rent.

As for the $50 auto parts rental compressor, none of them will probably work. The internal one is too large for the W210 coils and the external type is very dangerous because it is hard to get the correct placement of the tool on to the coil. I used the external type only to ease the tension when the lower arm was disconnected at the ball joint.
 

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1998 E320
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50 Posts
I concur with Rob. The front springs definitely require the proper spring compression tool. I removed the lower A-arm bolts, sway bar bolt, tried a generic internal compressor (nope), and eventually was able to get a pair of external compressors to work. Still not pretty.
While you're working in the area, be sure to closely inspect the upper spring perch. Is it rusting?
 

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god damn

i fucked uP! i have a 00 E430 4Matic tried to take the front shocks off cant. It pined the axle. i removed the fork for the shock and the upper bolts. NOW ITS STUCK i cant do SHI! damnit. damnit. damnit. its a lot harder then it looks. I guess the 4matic is way different. i dont even know what to do now. Im about to remove the whole hub assembly to get it off of the axle thats the only way out. Its pinning my BUSHING.
 
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