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Dash cracking on sedan

Has anyone else had this issue, not sure why it is happening on my series 2 sedan, I guess it might have had a harder life before I purchased it in 2011, I always use a windscreen shade if parked in the sun, but as you can see from the pictures, my dash is cracking, it started about 2 years ago, but now is cracking in more obvious places (first location wasn't even where the sun would impact it).  Over $1k for a new dash, plus shipping, so I don't really want to go down that path, I was thinking of removing it and trying some of the local auto upholsterers to see if they can put a layer of vinyl over it, if they have something that matches almost exactly, but then I am worried about things like vents and other items not fitting back in.

Any ideas?

20160912_104032[1].jpg

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I can see the yellow foam backing through the cracks, so it is all the way through the vinyl, I have been very careful to keep the sun off the dash whenever possible (always use a windscreen cover when parked in the sun, and all windows are tinted), same as my old J30 maxima that didn't have any cracking at all when I got rid of it when it was 18 years old, so I can only assume it was treated fairly badly before I got it in 2011.

I have been looking out for a 2nd hand dash, but it seems Series 2/3 parts are fairly few and far between.  I am also not sure if the coupe dash is the same, I assume they would be, but considering the cost, it isn't worth the risk, unless someone can confirm 100%?  Maybe the Stag dash is the same too?

Edited by sonicii

the vinyl actually still seems quite flexible, even around the cracks, pushing on it doesn't cause it to crack further or produce new cracks, but it does feel a little 'sticky'.  My theory is the vinyl is actually shrinking due to 'who knows what', and that is causing the cracks to appear.  I have been using meguairs products since I have had the car, like I have on other cars, but this is the only time I have ever had this issue on a car, thus my assumption it was something used on it earlier in its life.

Anyway, I searched the part numbers on epc and it shows the same number for the S2/3 V35 coupe and sedan and Stagea.

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