NewYall Air Suspension Compressor Valve Block for Mercedes GL350 GL450 GL550 ML250 ML350 ML400 CL550 CL600 S350 S400 S550 S600 R350 R500 R320 R63/S65/S63/CL65/CL63/65/ML63 AMG

Works fantastic

2007 Mercedes Benz S550 4matic. Just had a mechanic replace this since they were replacing a decent amount of the airmatic suspension already. I was having car too low and adjusting warnings pretty regularly and assumed it was from the only things I didn't replace, my front suspension. I have it sit for 4 hours and I come out to the front being too low and not willing to go up. It leaves me stuck 20 miles from anything with a wrench so I had to get it towed. I find out my suspension is fine but the back of the block is leaking from a seam in the plastic. The mechanic confirmed with a leak down test. Thing couldn't even last a year and even that would be too short of a lifespan. Poor craftsmanship with a return window of only one month. Don't waste your time with this one.

Fixed the uneven leveling issue with my 2010 GL450. Pain in the butt to switch out but worth it to be normal again!

Come to find out the strut was the issue, but now I know all the components are new.

The product worked as expected

I have installed a couple of these over the years without any issues. First, after installing the valve block the o-rings were not sealing properly. I had to go buy new o-rings to get everything to seal properly. Then, after installing it I noticed the rear suspension was not as high as it was previously. Now, after only 2 months (and 30 days after the return window) the valve block is no longer sending air to the rear bags (both sides). Disappointing to have to replace this again after only 2 months. I would not purchase this again. Spend the extra $50 and get a better quality valve block.

Good fit work like it should fix my air ride problem

BEWARE ONLY 6-MONTHS WARRANTY. THIS IS A STUPID BASIC PART, THERE IS NO REASON IT SHOULDN'T HAVE A 12-MONTH + WARRANTY. Mine went 10 months and broke down in the lake of the Ozarks on Sunday 4th of July weekend. There were no rental places open and had to uber a hour away to Jeff city to get a rental. Repair took a week to get in / get parts / install. Luckily there was a reputable repair place that works on euros. If not, it would have been a flatbed to a dealership in Columbia 1.5 hours away. 5 days car rental, 5.25 hours down, 5.25 hours back. Food spoiled in coolers sitting in the heat for a week. I know that's not what I thought about when I purchased it, but whats the worst case scenario where you could be stuck?