TRAKCAR

Just came back for a 1 week trip, usually I drive the car at least every third day or so. The car is sitting much lower than usual after 1 week.
Same all around, not one corner.

Does this mean it has a leak? Anything I should pay attention to when I start it up?

I do have CPO Starmark warranty, but the factory warranty expired a month ago.

Ifari

It is normal due to the construction of the metal valve blocks. Start it and raise it up.

JAYCL600

Once you put the key in and turn it it should raise back up to normal position, if it doesn't then take it in to get it looked at, obviously if the wheel is in wheel well dont drive it I think ive seen you on 6Speed?

Totalman

I've had this phenomena on mine. And no, it's not normal, although some live like this forever
I'm glad I took it to the MB service (mine is still under factory warranty), they found the leaking valve(s), overall fix + afterfix verification (rodeo, etc.) took 2 days and ~$1800 on paper (0 cost to me). If you have a warranty, by all means, attend to this problem.

TRAKCAR

OK, thanks for the comments.

It raised no problem after starting up, level, no warnings.
I will check it out with the next service I suppose.

Silver CL55

MB in the UK says, and I have the letter to prove it, that it is "normal" after 2 weeks or more.
It should not be happening after a week.
Colin.

Ifari

The MBZ STAR SERVICE Service Manual Library DVD states...

If the car lowers after being stationary for LESS than a week, this is likely due to a leak in the check valve of the front or rear valve block.

The internal leakage is the result of deposits or contamination. In order to remove the deposits...
Flush the ABC system and change the filter, then have a rodeo done.
If that does not work then the respective valve block must be replaced. This advice comes from the MB Star Service Library in the DTB section.


The MB STAR SERVICE Manual Service Library ALSO states that it is not unusual for the car to sink if sitting for MORE than a week...

If a vehicle lowers after sitting stationary for more than approximately a week, this is a characteristic of the hydraulic design and is not a complaint that requires repair. The Check Valves in the front and rear axle blocks have a metal valve seat. The inherent design of this sealing method, required for system durability, permits a limited level of leakage which can result in the vehicle slowly lowering. If the vehicle does not lower significantly until after approximately one week has passed, do not perform any repair attempts.

TRAKCAR

Thanks again, I will mention it at the next service and see what they say.