Whch springs are these?

[dporto]

Hi,  I've done quite a bit of searching regarding spring types spring rate codes etc...And haven't been able to really determine without doubt what's on my car. I've got a  '99 C4 with 137,000 mi. on it. I can say fairly confidently that the suspension is not "original" (it's very stable, tight and firm with very little body roll - quite impressive actually - I can't see it being original with 137,000 mi.). So, I've recently had the front wheels off and I've seen the spring markings. The fronts are top mark - 1 green bottom marks, 1 lilac/pink 1 green. The sway bar has the green mark, but I think all the C4's have these. In the rear, I haven't had the wheels off, and can't see anything on the springs...the sway bar has the green paint mark... Has anyone got any firm grasp on this stuff?

  **The actual colors were washed out by the flash on my phone, the colors I "painted in" are pretty close to the actual ones...

Edited February 13, 2015 by dporto

[Loren]

The lower green mark is the compensation spring spacer size (green = 6.5 mm).

 

The upper marking are likely violet/green - which would be the US standard suspension.

 

From the Porsche 996 Service Manual:

- Violet color dot = standard running gear C4 RoW/USA

- Red-purple color dot = sport-type running gear C4 RoW

- Orange color dot = sport-type running gear C4 USA

[dporto]

Hi Loren, thanks for the reply. The lilac/green are the lower marks. The upper mark is green. The shock has a round purple mark on it (not in photo above)

[Loren]

The two marks designate the type of suspension - the single mark the compensation spacer required.

 

You will need to determine if the color is violet (US standard) or re-purple (RoW sport). It would be unusual to have that RoW sport spring on a US car. Most people that go "sport" get the 10 mm lower sport which is different colors.

[dporto]

I'll take a photo of the mark on the shock/strut later on and post it here - Thanks again

[dporto]

Ok, here they are, no flash... hopefully this ends this inquiry ;)

Edited February 14, 2015 by dporto