I own two Acura Mdxs. 2009 sport and 2011 advance. Both these vehicles active damper systems have failed multiple times. Acura or american Honda keeps replacing these failed parts with the same failed part # 51606-stx-A59. These parts are failing prematurely. We should not be replacing these parts at 50,000 miles. This is a suspension part and a real safety concern. I have replaced these ads struts now 5 times on my 2009. 3 fronts and 2 rears. I recently had 2 struts replaced on my 2011 MDX advance. I take the time now to point out this major glaring issue so the NHTSA can look into this matter further. Please look at mdxer's and acurazine complaints on this issue. Every person who owns these higher priced models is having these same issues. Many are driving around with this issue not knowing. I did for 20,000 miles on my 2009 MDX not knowing why my vehicle was making clunking noises and had a suspension like a truck. Please look into this issue. Acura sometimes covers these failed parts 100%, some 50%, but most they let the customer pay 100%. the glaring fact is that these ads struts seem to fail just outside the vehicles warranty. Acura knows this is an issue, they extended the warranty on these longer because of this issue. I feel strongly that this is a major issue and that all ads struts should be covered by american Honda 100%. I urge you to look into this issue. I have replaced 7 ads struts, so far, on both my Mdxs which I still both own. Please I urge you to look into this major issue

- Ridgewood, NJ, USA

The contact owns a 2011 Acura MDX. The contact heard noises coming from the front of the vehicle on numerous occasions. In addition, the vehicle vibrated violently while driving between speeds of 60-65 mph or higher. The vehicle was taken to a dealer to be repaired. The manufacturer was made aware of the issue. The failure mileage was 52,000.

- Dublin, CA, USA

The contact owns a 2011 Acura MDX. While driving at approximately 15 mph, the passenger side control arm separated from the bolt. The vehicle was taken to the dealer who diagnosed that the passenger side control arm and the knuckle needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 29,000.

- Wilmington , DE, USA