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-   -   DDM Coilover - Problems starting (http://forum.e46fanatics.com/showthread.php?t=665854)

Calsoldier 04-13-2009 05:09 PM

DDM Coilover - Problems starting
 
Hey guys,

Everything has been running more or less smoothly within the past 4-5 months that I've had these coilovers but recently I've started to notice a loud thump in the driver-side rear that sounds to be a shock mount issue. I lifted the car and took a look under only to notice that the rear shock has split into what looks like two pieces? (the gap will not close even after tightening down the collars). I had the shock taken out for further inspection and the rear shock mount is indeed intact and well.

Here are some pictures to give you guys an idea what I'm talking about***********:

Broken side: (notice the gap)

http://photos-a.ak.fbcdn.net/hphotos..._3615775_n.jpg

http://photos-h.ak.fbcdn.net/hphotos..._1763239_n.jpg

Passenger-side (no gap, the way it should be):

http://photos-c.ak.fbcdn.net/hphotos..._7574285_n.jpg

Contacted DDM about this but they want to me send in the shock for inspection and then warranty/advise me on it. I simply cannot have the car out of commission for weeks and was willing to show pictures/put a deposit on a new shock to speed up the process but was denied.

Oleg

n2Bimmer 04-13-2009 05:46 PM

i dont get it, what is wrong with it, what is right and what is wrong????

Calsoldier 04-13-2009 06:29 PM

Quote:

Originally Posted by n2Bimmer (Post 9767998)
i dont get it, what is wrong with it, what is right and what is wrong????

Cliff notes: Thump on unloaded suspension. Rear shock has gap that other shock does not which cannot be closed by tightening the collar. RSM's are in good condition.

NightWolfe 04-13-2009 07:15 PM

Ummm ... you know that part is hollow right? There is nothing in that part of the shock .. did you look at it when you installed it to see if it was like that originally? There honestly doesn't look like there is anything wrong there

Have you checked or replaced all your other bushings? Mileage on the car?

ryanwhite74115 04-15-2009 01:08 PM

rcab's??????

cancell 04-16-2009 02:43 PM

Check the differential and trailing arm bushings

Custom3 04-16-2009 02:50 PM

look fine to me....you properly never noticed that gap...I have mines in my hands right now and im looking at them (not installed on the car) and they have that same gap you posted on the first pic.

TheRusski 04-16-2009 02:55 PM

Wow hold on, deposit on the new shock? arent they suppose to be lifetime warranty, and you should get a free replacement?

Custom3 04-16-2009 02:57 PM

did you install the coilovers yourself? and if you did...did you use a chisel/flat head screw driver and hammer to tighten the collar as the instructions recommended?

DrM3 04-16-2009 03:39 PM

Quote:

Originally Posted by EuroBmrDude (Post 9789191)
Wow hold on, deposit on the new shock? arent they suppose to be lifetime warranty, and you should get a free replacement?

This is very common...
You get a lifetime warranty, but u put a small deposit until the shock is inspected. They then send you out the brand new replacement, once it is inspected and is considered under warranty they give you the deposit back. Simple and smart process.

Custom3 04-17-2009 02:49 PM

updates?

dens_310 04-18-2009 10:23 AM

So What happened...?

Bimmer^Hue 04-18-2009 01:41 PM

Fail lol

Calsoldier 04-18-2009 06:12 PM

Got it fixed. The gap is still there but that was not the root of the problem. Seems like the RSM's were not fully tightened down on the shock from the factory and started making noises. Tightened the nut and the sound has gone away. But now on an unrelated issue, my front coilover shock dampening adjustment seizes. I don't need to adjust the dampening right now so I'll deal with it when I do.

southpaw 04-23-2009 08:28 PM

wow. wtf.
i have the SAME Exact THUNK in the rear drivers side too whenever i come off of a bump :wtf:

tinkwithanr 04-24-2009 09:20 AM

^^ Then you should pry tighten your RSM's...

Calsoldier 04-25-2009 10:32 PM

Quote:

Originally Posted by southpaw (Post 9836054)
wow. wtf.
i have the SAME Exact THUNK in the rear drivers side too whenever i come off of a bump :wtf:

Yeah, looks like the RSM's might not have been the problem. The thump is back, and everything seems tight.

NightWolfe 04-27-2009 12:54 AM

Have you replaced your RTABs?

southpaw 04-28-2009 12:27 AM

Quote:

Originally Posted by tinkwithanr (Post 9838815)
^^ Then you should pry tighten your RSM's...

Quote:

Originally Posted by Calsoldier (Post 9847503)
Yeah, looks like the RSM's might not have been the problem. The thump is back, and everything seems tight.

fixed it thanks :hi:

swervin09 04-28-2009 01:58 AM

DDM suspension +/-
 
Calsoldier-
How are you liking the DDM suspension you installed. I am currently researching the sub$1K systems and would like to know your input on the ride quality? the handling? comfort? etc? My '03 330i ZHP is equipped with M-Tech suspension. I have 18" BBS wheels and powerflex polyurethane FCABs so stiffness is not a set back for me.


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