CL65 lowers by itself after sitting in the garage for 2 weeks
#26
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Not so!!
The leak was more like a weep, it's probably taken years to empty.
And when it did empty it didn't cause any damage. If Mercedes says just top it up from time to time, then that's good enough for me. I am not suggesting
that if it was gushing out you didn't get it fixed, but I guess it starts in a slow way. Any way I will check mine every 3 months and top it, if it needs it.![drive](https://mbworld.org/forums/images/smilies/driving.gif)
The leak was more like a weep, it's probably taken years to empty.
And when it did empty it didn't cause any damage. If Mercedes says just top it up from time to time, then that's good enough for me. I am not suggesting
that if it was gushing out you didn't get it fixed, but I guess it starts in a slow way. Any way I will check mine every 3 months and top it, if it needs it.
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
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#29
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LS7 powered Corvette
If the suspension drops after sitting for 2 weeks it is not entirely abnormal. Now, if a strut bled out and was sitting on the ground overnight you would have a problem. You have a front and rear valve block controling the front/rear struts seperately. The first step in resolving such problem would be to flush the system out and install a new filter which is located in the resevoir underhood. If that doesn't work, then the valve for that strut in the block is leaking.
#30
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If the suspension drops after sitting for 2 weeks it is not entirely abnormal. Now, if a strut bled out and was sitting on the ground overnight you would have a problem. You have a front and rear valve block controling the front/rear struts seperately. The first step in resolving such problem would be to flush the system out and install a new filter which is located in the resevoir underhood. If that doesn't work, then the valve for that strut in the block is leaking.
Cost over a grand to replace though.
#31
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'05 CL65, '07 Pathfinder, '97 SL600 (sold), 23 other cars (sold)
Guys, thanks a lot for your the tips and insights, this forum is great! ![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
As I've mentioned earlier, I am dropping the car off next Monday, will see what happens. I have warranty till 03/2010, so why not use it. Ray Catena in Union (Route 22) is less than 10 min from me, and thus far, they've been nothing but extra nice, but thanks, I will keep Frank Scott in mind.
I did some driving on Christmas weekends, afterwards parked her in the garage the usual, and past Saturday checked everything, now it's sitting on the wheels only on the left side(!), right side seems to be at normal level. No oil on the floor. I checked the level in the res., it's ok, too. When I start up the car, red warning comes up, but it doesn't level on it's own, until I press the level button... Looks like the simple flush may not fix it.![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
I will keep you posted once I get this issue straightened out.
Thanks again!
![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
As I've mentioned earlier, I am dropping the car off next Monday, will see what happens. I have warranty till 03/2010, so why not use it. Ray Catena in Union (Route 22) is less than 10 min from me, and thus far, they've been nothing but extra nice, but thanks, I will keep Frank Scott in mind.
I did some driving on Christmas weekends, afterwards parked her in the garage the usual, and past Saturday checked everything, now it's sitting on the wheels only on the left side(!), right side seems to be at normal level. No oil on the floor. I checked the level in the res., it's ok, too. When I start up the car, red warning comes up, but it doesn't level on it's own, until I press the level button... Looks like the simple flush may not fix it.
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
I will keep you posted once I get this issue straightened out.
Thanks again!
Last edited by Totalman; 01-05-2009 at 02:34 PM.
#32
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Sounds like a bad control block or a valve that is not shutting completely. Though this happens to many cars it's not the way the system was designed.
Get a fluid change, flush, and a new filter to see if it helps. There is probably some debris contamination making a valve stick open.
Get a fluid change, flush, and a new filter to see if it helps. There is probably some debris contamination making a valve stick open.
I have been through 6 blocks on my SL55 and it still sags in the front when it sits for a week at a time. Not as bad as before but it still low.
I have done 2-3 fluid flushes as well!
The rear was fixed finally however.
#33
Totalman, since you have a warranty, you should def. have everything you can done under it while you still can. This stuff is more $$$ the more you leave it alone. On a side note, some of you are saying you've had valve blocks and other components replaced multiple times. I was under the impression that the replacement parts had a better design to prevent the problems. Is this not true? I guess I would've expected that. For instance, if you replace all this stuff once, shouldn't it be good for at least another 75-100k?
#34
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'05 CL65, '07 Pathfinder, '97 SL600 (sold), 23 other cars (sold)
My CL65 has 24k on it, and one owner since sold new in 03/2006. So, looks like it takes about 2 years before ABC starts giving up...
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#35
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'05 CL65, '07 Pathfinder, '97 SL600 (sold), 23 other cars (sold)
Picked up my car from the service last night. According to the invoice, they found leak from dual line from ABC pump to front level valve (there was absolutely no signs of anything on the garage floor, however). They drained power steering and ABC fluids, removed reservoirs, underpanels, evacuated AC system (!?), removed both AC compressor lines, and installed engine hoise and lower sub frame (no clue about the last one, but seems that all that work was just to get access to the problem area?).
Then they replaced dual line and line connecting to front level valve, flushed ABC system, charged AC system, added power steering fluid, and retested everything, using rodeo actuation.
Best of all, didn't cost me anything, since all this was warranty repair. The car is back in the garage, will see how long it will hold this time around, before relaxing the sphincter.![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
Then they replaced dual line and line connecting to front level valve, flushed ABC system, charged AC system, added power steering fluid, and retested everything, using rodeo actuation.
Best of all, didn't cost me anything, since all this was warranty repair. The car is back in the garage, will see how long it will hold this time around, before relaxing the sphincter.
![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
Last edited by Totalman; 01-16-2009 at 10:18 AM.
#37
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Picked up my car from the service last night. According to the invoice, they found leak from dual line from ABC pump to front level valve (there was absolutely no signs of anything on the garage floor, however). They drained power steering and ABC fluids, removed reservoirs, underpanels, evacuated AC system (!?), removed both AC compressor lines, and installed engine hoise and lower sub frame (no clue about the last one, but seems that all that work was just to get access to the problem area?).
Then they replaced dual line and line connecting to front level valve, flushed ABC system, charged AC system, added power steering fluid, and retested everything, using rodeo actuation.
Best of all, didn't cost me anything, since all this was warranty repair. The car is back in the garage, will see how long it will hold this time around, before relaxing the sphincter.![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
Then they replaced dual line and line connecting to front level valve, flushed ABC system, charged AC system, added power steering fluid, and retested everything, using rodeo actuation.
Best of all, didn't cost me anything, since all this was warranty repair. The car is back in the garage, will see how long it will hold this time around, before relaxing the sphincter.
![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
The reason they did all that work is because one of the ABC lines runs along the front subframe right under the engine oil pan. So removal of that one line requires dropping the subframe and removing the A?C compressor to access the line at the pump. I have actually seen a couple of these lines blow off completely and spray fluid on the belt, causing the belt to fall off.
#38
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Aren't you glad you had it repaired. I'd imagine that would have been $2,000+ had you paid for all that work after the warranty expired.
For everyone else. If you have a warranty and the car is leaking down, take it in and have it repaired. The suspension is not supposed to drop or leak down.
For everyone else. If you have a warranty and the car is leaking down, take it in and have it repaired. The suspension is not supposed to drop or leak down.
#39
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'05 CL65, '07 Pathfinder, '97 SL600 (sold), 23 other cars (sold)
Of course, I'm glad this was done now, and done for free. Thanks a lot for all of your inputs, guys! ![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
It's just this is actually my 26th car, and over the years, I've developed a feeling... In short, I try not to let mechanics touch my vehicles unless absolutely necessary, and whenever possible, try to watch over their shoulders. I know this may not sound sane, but... have you ever noticed how you run for years w/o any issues, but once you let them fix something more or less substantial, you become a regular customer, and things just start failing on you
It's just like in a casino, when they change a dealer on you - deck is the same, you didn't move to another spot, nothing really changed, but you go south right away...
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
It's just this is actually my 26th car, and over the years, I've developed a feeling... In short, I try not to let mechanics touch my vehicles unless absolutely necessary, and whenever possible, try to watch over their shoulders. I know this may not sound sane, but... have you ever noticed how you run for years w/o any issues, but once you let them fix something more or less substantial, you become a regular customer, and things just start failing on you
![crazy](https://mbworld.org/forums/images/smilies/crazy.gif)
![devil](https://mbworld.org/forums/images/smilies/devil.gif)
#40
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I have a small leak, from a pipe under the engine so I have to top up
sometimes. They want a ridiculous price (over a grand) to replace it.
sometimes. They want a ridiculous price (over a grand) to replace it.
#41
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Here's a little read up on ABC which should make you understand what a complex system this is:
Active Body Control, or ABC, is the Mercedes-Benz brand name used to describe fully-active suspension, that allows control of the vehicle body motions and therefore virtually eliminates body roll in many driving situations including cornering, accelerating, and braking.
In the ABC system, a computer detects body movement from sensors located throughout the vehicle, and controls the action of the active suspension with the use of hydraulic servomechanisms. The hydraulic pressure to the servos is supplied by a high pressure radial piston hydraulic pump. A total of thirteen sensors continually monitor body movement and vehicle level and supply the ABC controller with new data every ten milliseconds. Four level sensors, one at each wheel measure the ride level of the vehicle, 3 accelerometers measure the vertical body acceleration, one acceleration sensor measures the longitudinal and one sensor the transverse body acceleration. At each hydraulic cylinder a pressure sensor monitors the hydraulic pressure. As the ABC controller receives and processes data, it operates four hydraulic servos, each mounted in series on a spring strut, beside each wheel. Almost instantaneously, the servo regulated suspension generates counter forces to body lean, dive, and squat during various driving maneuvers. A suspension strut, consisting of a steel coil spring and a shock absorber are connected in parallel, as well as a hydraulically controlled adjusting cylinder, are located between the vehicle body and wheel. These components adjust the cylinder in the direction of the suspension strut, and change the suspension length. This creates a force which acts on the suspension and dampening of the vehicle in the frequency range up to five hertz.
The system also incorporates height adjustable suspension, which in this case lowers the vehicle up to eleven millimeters between the speeds of 60 km/h (37 mph) and 160 km/h (99 mph) for better aerodynamics, fuel consumption, and handling.
The ABC system also allows self-levelling suspension, which raises or lowers the vehicle in response to changing load (i.e. the loading or unloading of passengers or cargo). Each vehicle equipped with ABC has an “ABC Sport” button that allows the driver to adjust the suspension range for different driving style preferences. This feature allows the driver to adjust the suspension to maintain a more level ride in more demanding driving conditions. It was introduced in 1999 on the top-of-the-line Mercedes-Benz CL-Class. This system is standard on all Mercedes-Benz SL and CL Class models and on some S Class models sold in the U.S.
#42
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Yea... that's pretty ridiculous for a car that cost more than $140,000 - NOT! The price is very fair considering the price of the actual hose and the amount of labor involved in getting the hose out.
Here's a little read up on ABC which should make you understand what a complex system this is:
Active Body Control, or ABC, is the Mercedes-Benz brand name used to describe fully-active suspension, that allows control of the vehicle body motions and therefore virtually eliminates body roll in many driving situations including cornering, accelerating, and braking.
In the ABC system, a computer detects body movement from sensors located throughout the vehicle, and controls the action of the active suspension with the use of hydraulic servomechanisms. The hydraulic pressure to the servos is supplied by a high pressure radial piston hydraulic pump. A total of thirteen sensors continually monitor body movement and vehicle level and supply the ABC controller with new data every ten milliseconds. Four level sensors, one at each wheel measure the ride level of the vehicle, 3 accelerometers measure the vertical body acceleration, one acceleration sensor measures the longitudinal and one sensor the transverse body acceleration. At each hydraulic cylinder a pressure sensor monitors the hydraulic pressure. As the ABC controller receives and processes data, it operates four hydraulic servos, each mounted in series on a spring strut, beside each wheel. Almost instantaneously, the servo regulated suspension generates counter forces to body lean, dive, and squat during various driving maneuvers. A suspension strut, consisting of a steel coil spring and a shock absorber are connected in parallel, as well as a hydraulically controlled adjusting cylinder, are located between the vehicle body and wheel. These components adjust the cylinder in the direction of the suspension strut, and change the suspension length. This creates a force which acts on the suspension and dampening of the vehicle in the frequency range up to five hertz.
The system also incorporates height adjustable suspension, which in this case lowers the vehicle up to eleven millimeters between the speeds of 60 km/h (37 mph) and 160 km/h (99 mph) for better aerodynamics, fuel consumption, and handling.
The ABC system also allows self-levelling suspension, which raises or lowers the vehicle in response to changing load (i.e. the loading or unloading of passengers or cargo). Each vehicle equipped with ABC has an “ABC Sport” button that allows the driver to adjust the suspension range for different driving style preferences. This feature allows the driver to adjust the suspension to maintain a more level ride in more demanding driving conditions. It was introduced in 1999 on the top-of-the-line Mercedes-Benz CL-Class. This system is standard on all Mercedes-Benz SL and CL Class models and on some S Class models sold in the U.S.
Here's a little read up on ABC which should make you understand what a complex system this is:
Active Body Control, or ABC, is the Mercedes-Benz brand name used to describe fully-active suspension, that allows control of the vehicle body motions and therefore virtually eliminates body roll in many driving situations including cornering, accelerating, and braking.
In the ABC system, a computer detects body movement from sensors located throughout the vehicle, and controls the action of the active suspension with the use of hydraulic servomechanisms. The hydraulic pressure to the servos is supplied by a high pressure radial piston hydraulic pump. A total of thirteen sensors continually monitor body movement and vehicle level and supply the ABC controller with new data every ten milliseconds. Four level sensors, one at each wheel measure the ride level of the vehicle, 3 accelerometers measure the vertical body acceleration, one acceleration sensor measures the longitudinal and one sensor the transverse body acceleration. At each hydraulic cylinder a pressure sensor monitors the hydraulic pressure. As the ABC controller receives and processes data, it operates four hydraulic servos, each mounted in series on a spring strut, beside each wheel. Almost instantaneously, the servo regulated suspension generates counter forces to body lean, dive, and squat during various driving maneuvers. A suspension strut, consisting of a steel coil spring and a shock absorber are connected in parallel, as well as a hydraulically controlled adjusting cylinder, are located between the vehicle body and wheel. These components adjust the cylinder in the direction of the suspension strut, and change the suspension length. This creates a force which acts on the suspension and dampening of the vehicle in the frequency range up to five hertz.
The system also incorporates height adjustable suspension, which in this case lowers the vehicle up to eleven millimeters between the speeds of 60 km/h (37 mph) and 160 km/h (99 mph) for better aerodynamics, fuel consumption, and handling.
The ABC system also allows self-levelling suspension, which raises or lowers the vehicle in response to changing load (i.e. the loading or unloading of passengers or cargo). Each vehicle equipped with ABC has an “ABC Sport” button that allows the driver to adjust the suspension range for different driving style preferences. This feature allows the driver to adjust the suspension to maintain a more level ride in more demanding driving conditions. It was introduced in 1999 on the top-of-the-line Mercedes-Benz CL-Class. This system is standard on all Mercedes-Benz SL and CL Class models and on some S Class models sold in the U.S.
However paying 140k for a car should give you 10 years hassle free motoring.
Just because it's expensive does not mean necessarily that you have to keep
throwing money at it. I have a 9 year old VW Golf, cost 12 K and besides
services and a wheel bearing nothing else has gone wrong.
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
#43
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W220 S65 AMG
Thanks for the lengthy reply
However paying 140k for a car should give you 10 years hassle free motoring.
Just because it's expensive does not mean necessarily that you have to keep
throwing money at it. I have a 9 year old VW Golf, cost 12 K and besides
services and a wheel bearing nothing else has gone wrong.![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
However paying 140k for a car should give you 10 years hassle free motoring.
Just because it's expensive does not mean necessarily that you have to keep
throwing money at it. I have a 9 year old VW Golf, cost 12 K and besides
services and a wheel bearing nothing else has gone wrong.
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
Don't forget that the $140K does come with a warranty!
#44
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Sorry I love my Merc's but I get more faults than I think it should give me,
and the faults are expensive to fix. I had to replace the gearbox in my S600
at 48000 miles, just out of warranty. In the end Mercedes gave half towards
the cost of 7K, and whilst I appreciate it they should have replaced it F.O.C.
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)