Review on 🚗 DEDC Rear Air Suspension Spring Assembly: BMW X5 X6 E70 E71 E72 - 2007-2012 by Sean Young

At 120,000 miles my 2008 X5 started hissing and sagging in the left rear corner. There was a significant leak in the left rear air spring. A BMW part costs about $350, so I started buying a NON-BMW part. I settled on an Arnott brand nib, which has great reviews and sells for around $180. Installation was easy, the fit was good, and the Arnott part looked and felt the same as the original BMW part it replaced. That was about a year ago. I've now driven about 130,000 miles and over the past few weeks I've noticed that the right rear end sags when the X5 has been parked for more than 8 hours. This time I decided to go with an inexpensive DEDC spring mainly because of the easy interchangeability of these springs, thinking that if this DEDC spring didn't hold, it would be an easy fix. I installed the DEDC element in my 2008 X5 yesterday. Again, the job was very easy, it took me about 20 minutes. The build quality of the DEDC parts looked good and they fitted together perfectly so there were no issues with installation. After installation drove approx. 20 km without problems. When comparing a factory BMW air spring to this DEDC replacement air spring, I noticed that the DEDC part weighs less than the factory one. It's a subtle difference, but I'm wondering if I'm getting 130,000 from this part of DEDC. or maybe just 30,000 miles. My only fear is that the DEDC isn't as reliable as the original part and won't last as long, although it looks well made. For now I'll give the DEDC part the benefit of the doubt and give it a 4 star rating. Only time will tell if the original part is as good. If not I will replace it with an Arnott nib and update this review.