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2006 CL55 AMG, 2002 E320 (totaled), '72 Datsun Z
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138 Posts
Discussion Starter #1 (Edited)
My '06 CL55 W215 is in limp mode. Posting here as more readers and this isn't chassis specific. Need some help figuring this out

  • Limp mode
  • wife said it felt like the transmission was slipping
  • Fluid level is good
  • 92k miles on the car
  • 15k miles on fluid flush, conductor plate, pilot bushing
  • P2561, P2562, P220A from Autel scanner
  • P0715, P0730 from BlueDriver scanner
  • No oil or water in the TCM (very clean circuit board)
  • Don't see any oil in the coolant
  • wow is the fluid dirty, but doesn't smell burnt (see video)
  • Do not smell glycol in the fluid
Thinking valvebody/solenoids. The Sonnax rebuids include the solenoids. Is this the route to go with a flush/filter/conductor plate? Other candidates are the pump went out or the clutch packs are gone.

IMG_2467.png 00310285-F262-4F92-BD58-06D1871CD793_1_105_c.jpeg


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2006 CL55 AMG, 2002 E320 (totaled), '72 Datsun Z
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138 Posts
Discussion Starter #3
Probably need a whole valve body not just conductor plate
Oops, yeah Sonnax valve body includes the solenoids, I'll correct the post. Exactly what I'm thinking.
 

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W123 1985 T-model M110
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28 Posts
Oops, yeah Sonnax valve body includes the solenoids, I'll correct the post. Exactly what I'm thinking.
Problem may be in oil pump. Or with linear(main pressure solenoid)
Or with bushes or o-rings.
Need rebuild and relook the valvebody,change placement shift pressure with main.
And check.

Also could take 4 wires from transmission or to tranmission connector, from shift solenoids. And test on clear road each gear in manual shifting without pressure regulators- for testing oil pump, o-rings and bushing

Отправлено с моего GM 5 Plus через Tapatalk
 

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Registered
2006 CL55 AMG, 2002 E320 (totaled), '72 Datsun Z
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138 Posts
Discussion Starter #5
Oh great... Valve body casting is 0106 for the AMG, which Sonnax does not rebuild. Victory Racing has a valve body for it without the solenoids SGA150 Street Valve Body - VRP Speed.

There is a lot of fine metal on the magnet (see video). Does this point at a pressure problem? Does this amount of metal mean the clutches are gone? Trying to figure out if the transmission needs to come out and go get sent over to Sun Valley Transmissions or if its worth attempting a valve body swap. I like the idea of swapping Main and Shift pressure solenoid, thanks Kolleso.

 

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W220 Moderator
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6,338 Posts
Hi,

My advice having seen that grey sludge on your finger is do not waste your money fitting new / rebuilt parts in that Transmission, the whole Trans and Torque Converter needs rebuilding ;)

Do not forget to thoroughly flush the Cooler Lines and Cooler (backwards flow direction), pump solvent like Kerosene through it then blow through with compressed air ;)
If you skip that step, you will just fill the new / rebuilt Trans with debris :(

If you go the route of swapping this that and the other you will simply contaminate new parts with debris from the old transmission, which is clearly way beyond the "quick fix" stage ;)

HTH
 

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Registered
2010 S500
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72 Posts
  • Limp mode
  • wife said it felt like the transmission was slipping
  • FLUID LEVEL IS GOOD
  • 92k miles on the car
  • 15k miles on fluid flush, conductor plate, pilot bushing
  • P2561, P2562, P220A from Autel scanner
  • P0715, P0730 from BlueDriver scanner
  • No oil or water in the TCM (very clean circuit board)
  • Don't see any oil in the coolant
  • wow is the fluid dirty, but doesn't smell burnt (see video)
  • Do not smell glycol in the fluid
FIRST THING IS CHECK THE FLUID LEVEL
 

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Too many to list
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8,808 Posts
A good used valve body is $250 on ebay , With free returns - or $20 at a pick your part wrecking yard . Not much risk to try IT and see if it fixes it as long as your doing your own labor for free
 

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W220 Moderator
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6,338 Posts
In the case of this Transmission that is wasted money, not just $250 but add on a new Pan Gasket, Oil and Filter, so probably around 25% of the cost of simply getting it rebuilt properly.

Also not just the expense, but time wasted and frustration that it didn't work out, or maybe it will work again but be slipping, so will only last another couple of hundred miles at best.

The grey looking sludge is formed from seriously worn clutch material, and aluminium wearing not to mention the sparkly bits which will be the metal backing of clutches with no lining left rubbing on the steel intermediate plates and creating swarf .............

Trans is FUBAR.
 

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2006 CL55 AMG, 2002 E320 (totaled), '72 Datsun Z
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138 Posts
Discussion Starter #11 (Edited)
Trans is going to come out. After I dumped the rest of the fluid in the pan there was some sparkly brass at the bottom. Wife says she drove 10 miles before calling AAA. Think pump/valve lost pressure and she rode on the clutch packs. Ride 'em cowgirl! Sun Valley Transmissions the way to go? This is my first benz trans project besides fluid flushes. I appreciate your advice guys.
 

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Outstanding Contributor , SDS Guru
1998 MB E300TD, 1997 MB E36 AMG, 2001 MB E55 AMG
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3,657 Posts
Sun valley if you're planning on keeping the car for 5+ years. Otherwise go with a used unit from junkyard or something... These trans hardly fail. They usually fail from lack of maintenance.
 

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2006 CL55 AMG, 2002 E320 (totaled), '72 Datsun Z
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138 Posts
Discussion Starter #13
Sun Valley has seen snap ring breaking or the torque converter imploding causing this kind of carnage. So maybe the transmission is fine. Still, with all that debris, I'd feel better with a cleaned out valve body and torque converter. Going the +5 option. Will back flow the lines and report back in a few weeks.
 

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W220 Moderator
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6,338 Posts
Going the +5 option
Hi, I haven't a clue what +5 option means, but please tell me they are at the very least going to strip that Transmission and clean it out / thoroughly check it all ??????

HTH,
 

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2005 S600
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540 Posts

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W220 Moderator
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6,338 Posts
I take the +5 to be a response to, "if you're going to keep it 5 or more years" statement that a full rebuild is in order.
Ah, good man, I saw the post but didn't connect the "5 years" dots, yep, I get that now, Thanks ;)

Being a Transmission ReBuilder myself for most of my life, (before I sold up), even if it is a Converter failure I wouldn't contemplate doing the job without stripping the Tranny ;)
 

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2006 CL55 AMG, 2002 E320 (totaled), '72 Datsun Z
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138 Posts
Discussion Starter #17
It will be fun to see how much crap comes out of the lines/coolers during the backflow. The back of the valve body had sludge coming off one of the mounting screws. YUCK. Does the exhaust need to come out when pulling the transmission on a W220 S55?? I think the W215 CL55 is pretty much the same thing. Big pipes on these cars.
 

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W220 Moderator
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6,338 Posts
Hi,

You can get 'em out without breaking down the exhaust, but I always remove the Exhaust, makes it heaps easier.

If you are doing it without a lift it's a horrible job, and personally in that case I would pay the Trans Specialist a bit extra to fit the bugger too ;)

Without a lift you will need to get the Car around 2ft 6" + high off the Ground, and you also need a Transmission Jack, it's very heavy and awkward holding it up in place while you get a few bolts in ;)

HTH,
 

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2006 CL55 AMG, 2002 E320 (totaled), '72 Datsun Z
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138 Posts
Discussion Starter #19 (Edited)
It will be on a lift. I'll pull the exhaust. Had the rear part of the exhaust out a few months ago to replace an ABC hydraulic line. Massive but easy

Extra bits in the "while I'm at it category". Anything else?
  • Exhaust Gaskets/bolts/nuts
  • O2 sensors
  • Rear main seal and plate
  • Flex discs
Thanks again for your guidance. Its great to get the benefit of your experience.
 

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Outstanding Contributor , SDS Guru
1998 MB E300TD, 1997 MB E36 AMG, 2001 MB E55 AMG
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3,657 Posts
Driveshaft carrier bearing, bushing and cover.
 
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