So I've had the MM coil overs (bilstein/hypercoil) since late 2011. Last year the right rear shock started leaking, so I got it replaced under warranty. A month or so ago the left rear started leaking and has since leaked all the fluid out and needs to be replaced. I have an IRS in the car, so it has the grooved shocks which makes the warranty only good for 3 years so I'm gonna have to buy the replacement this time. I contacted MM tech support and they said it's prob due to the fact that the rear coil overs don't have dust covers. Has anyone else had this issue with your rear coil overs? I'm gonna be pretty upset if I wind up having to buy a $200 shock every year and a half or so.
