C2 Turbo

My 2014 E63S wagen has been lately making some hissing and pissing sounds and than a noise that sounds like as some one popped open a relieve valve or something like that. Reading archives mentions that as normal but what I am noticing is, from time to time, passenger side seems to sit bit lower than the driver. There's no suspension malfunction light on, is it possible to have issue without the warning sign?

Thanks

Juice1979

Is it only when parked or all the time even when the car is on. I had a similar issue on my cls63 and the dealer had to replace the compressor and some other components. However, mine was on when the car was parked. Luckily I was under warranty.

kenneyd

Any suspension mods? Or completely stock?

C2 Turbo

Completely stock. No suspension dash lights on.

kenneyd

Ive found that tiny differences in the front suspension can cause large differences in the rear. The reason is the front springs usually have 4-6 times the spring rate of the rear. This is common on the cars like with airbags all all 4 corners or coilovers etc.
However, with the e63 having fixed coils up front. makes this less likely.
check your tire pressures, especially in the front.
Look for leaky shocks front and rear
also for any broken links on the sensors. Its possible you have a bas sensor or airbag in the rear as well.

C2 Turbo

It's still under MBZ ELW warranty so dropped it off for an oil change and for some other minor issues.

Bilal Dinc

maybe leaky airbag. its a somewhat common issue
these are good replacements https://www.fcpeuro.com/Mercedes~Ben...eywords=arnott