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#4684783 - 03/05/18 04:06 AM Replacing coils w/ struts; All 4 or none?
dlundblad Online   happy


Registered: 09/30/13
Posts: 10033
Loc: Indiana
The Volvo in my signature is due for some fresh suspension. Thinking either Sachs or Bilstein Tourings.

I can get "loaded" Sachs with the coil ready to install or I can get just the strut itself and swap everything over.

Question being, would I run into any issues replacing just the front coils, but not the rear?
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4684803 - 03/05/18 05:49 AM Re: Replacing coils w/ struts; All 4 or none? [Re: dlundblad]
Billbert Online   content


Registered: 10/09/09
Posts: 363
Loc: California
you are likely to have an increased ride height in the front of your car, it will throw off the headlight adjustment and you will get a bit of the (lowrider look) without the car being low. Best to replace all 4 springs.
_________________________
If you think you can, or if you think you can't, You are probably right.

Auto Instructor / ASE Master Tech

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#4684829 - 03/05/18 06:37 AM Re: Replacing coils w/ struts; All 4 or none? [Re: Billbert]
Trav Offline


Registered: 11/20/06
Posts: 18882
Loc: MA, Mittelfranken.de
+1 The springs are 16 years old and definitely sagging, you don't notice it as they are all sagging at the same rate.
You could do the fronts with the coils as a unit and buy the springs extra for the rears if they don't sell an assembly. Look at Lesj÷fors Springs if Sachs doesn't make them.
Make sure to get any dot colors of the old coils if there are any Lesj÷fors make to exact OE.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

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#4684957 - 03/05/18 09:12 AM Re: Replacing coils w/ struts; All 4 or none? [Re: dlundblad]
maxdustington Online   content


Registered: 01/21/17
Posts: 665
Loc: Toronna
You should do all four, it would be weird to have the front stiff and the rear bouncy.
_________________________
03 Jetta AWP/09A 200k kms
Edge 0W40 + Mann 719/30

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#4685119 - 03/05/18 11:51 AM Re: Replacing coils w/ struts; All 4 or none? [Re: dlundblad]
jaj Offline


Registered: 08/21/03
Posts: 1060
Loc: Vancouver, Canada
If it were I, because it sounds like you don't need springs, I wouldn't replace them. However, if you're doing the work yourself and you like the convenience of the full corner module for the front, then do the fronts first and see how if ride height changes. If the front end rides higher, then replace the rear springs when you do the rear end, but if the car's still level, then just replace the rear shocks.

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#4685139 - 03/05/18 12:12 PM Re: Replacing coils w/ struts; All 4 or none? [Re: jaj]
maxdustington Online   content


Registered: 01/21/17
Posts: 665
Loc: Toronna
Originally Posted By: jaj
If it were I, because it sounds like you don't need springs, I wouldn't replace them. However, if you're doing the work yourself and you like the convenience of the full corner module for the front, then do the fronts first and see how if ride height changes. If the front end rides higher, then replace the rear springs when you do the rear end, but if the car's still level, then just replace the rear shocks.


A few summers ago I had a 2000 Golf that I put new struts and rebuilt the front suspension. I put that entire suspension on a 2003 Jetta a year later but replaced the springs with low mileage used neuspeed sport springs that I got off of kijiji. The springs made more of a difference in the way the car felt more than any of the other stuff, and the springs were like 1/3 the cost of the other components (bilstein touring stuts and an IDparts front end kit). I know that I replaced worn sport springs with new, stiffer sport springs but the car did not crash over bumps and actually absorbed some of the impacts. The car had about 195k km on it on completely stock suspension down to the tie rod ends IIRC.

I've seen people say that springs never need to be replaced, but they made my car feel brand new. I know factory springs are expensive, but you can always get good quality aftermarket springs for cheaper. I am not sure that you could get a stiffer spring in a stock ride height though.
_________________________
03 Jetta AWP/09A 200k kms
Edge 0W40 + Mann 719/30

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#4685422 - 03/05/18 05:22 PM Re: Replacing coils w/ struts; All 4 or none? [Re: Trav]
slacktide_bitog Offline


Registered: 03/20/08
Posts: 6159
Loc: USA
Originally Posted By: Trav
+1 The springs are 16 years old and definitely sagging, you don't notice it as they are all sagging at the same rate.
You could do the fronts with the coils as a unit and buy the springs extra for the rears if they don't sell an assembly. Look at Lesj÷fors Springs if Sachs doesn't make them.
Make sure to get any dot colors of the old coils if there are any Lesj÷fors make to exact OE.


approved

Get the Sachs quick struts and then buy the rear springs too thumbsup

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#4689785 - 03/09/18 04:36 PM Re: Replacing coils w/ struts; All 4 or none? [Re: dlundblad]
dlundblad Online   happy


Registered: 09/30/13
Posts: 10033
Loc: Indiana
Confession:

I ended up just buying the quickies for the front and shocks for the rear; no rear coils.

Between the replacement control arm/ ball joint and 4 corners of suspension, I'm at $900. I'll take some measurements and if it looks to be needed, I'll get some Lesjofors rears for $70 each. At the moment, the rear looks to be higher than the front so we shall see. shrug

They were supposed to be in today, but they look to be held up on the east coast from weather.


Edited by dlundblad (03/09/18 04:41 PM)
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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