gtr886

Does anyone who how many quarts transmission oil do you need to fill in after that service?

C32 Transmission Service Kit

ali saklaoui

4 quarts +the additive

greasybenz

What additive?

Its 6-7 quarts if drained properly. Make sure to drain the torque converter as well to get all the fluid out.

TemjinX2

yeah i believe i used about 7qts when i did mine. its more like 12qts if your doing a flush. i just changed mine because of time issues.

make sure you change the filter as well and clean the magnet in the drop pan.

Zeppelin

So does this kit come with 7-12qts of fluid? says it has everything.

TemjinX2

in my personal opinion, i would go with oem atf.

boohooramblers

+1
I would also stick with MBZ ATF. Are you still under warranty?

Refer to Splinter's very first post/thread on MBWorld for very useful information and instructions.

Popo

Every year I use my Mityvac and suck out as much ATF via the tranny dipstick as i can, then i pour back in the same amount of new MBZ ATF. I figure this means the fluid is fully replaced approx every 3 or 4 years. I will admit however that so far the fluid does not seem that dirty and still has the "sweet" smell.

I would love to do a full drain including the torque converter, but have not had the guts to try this yet

t1n0

I have an '03 C32 AMG, 101k miles. Although my tranny is working fine, my mechanic says that the transmission service is recommended at 90-100k miles. He says it entails draining the fluid replacing the filter and gaskets, and a few small internal parts. he says he'll do it for $250. Everything else he has done for me has been on the economical side and done promptly.
I don't like messing with a transmission that is working fine, but all hydraulic/lubricant fluids and filters should eventually be serviced.
1) is this a regular 100K service?
2) should I leave well enough alone, or do the maintenance?
3) isn't $250 a bit much for a filter, fluids and gaskets service?

BTW, I think I have read somewhere that the C32 AMG has the 5 series transmission in it and can handle about 500 hp. So even under full throttle, the C32's 349 HP are only pushing it to 70% load. Has anyone else read about the specifics about this transmission?

MarcusF

Regarding your questions -

Personally, I'd get the fluid changed ASAP.

Transmissions are rated by torque, not HP. Per Kleemann, all 722.6 transmissions fall into one of four continuous load rating categories (IE the transmission will handle this load amount continuously without failure) - 330 Nm (243 foot pounds), 580 Nm (427 foot pounds), 900 Nm (663 foot pounds), and 1000 Nm (737 foot pounds). Supercharged V8's got a 900 Nm box, V12's got a 1000 Nm box, non-AMG M113 V8's got a 580 Nm box and non-AMG M112 V6's got a 330 Nm box. I have no idea what boxes were put in the M112-K and non-K M113 AMG. Although, if you tell me your transmission part number, I may be able to look it up.

I've had my transmission flushed once by a dealer, and serviced once by a dealer. The flush was under $350. To determine if you're getting a deal, you can compare the parts that were used on my car (your parts will be similar). These are current dealer list prices:

transmission pan gasket (part number 140-271-00-80) - $17.50
transmission fluid (part number 001-989-21-03-10) - $17.50 each
Transmission oil filter (part number 140-277-00-95) - $18.00
Lock pin (part number 140-991-00-55) - $0.90

If they simply drop the pan, you're looking at 5 liters, and parts will be about $125. A flush uses more fluid. I don't know about an '03 C32, but I know by 2003 MB stopped putting torque converter drain plugs in all CLKs. That means to change all the fluid requires a flush.

t1n0

Thanks for the great info. I'm going to assume the transmission is the 427-ft-lb model (the second in the list you provided) as a C32 engine has about 330 peak torque.
I called my mechanic and he says the job he will do involves the entire fluid (flush) done through the cooling hose b/c these don't have torque converter drain plugs.
Considering that, doesn't $250 seem a little on the cheap side?
He's also going to replace the shift linkage bushing for $30.

spr

The m113 has the same tranny as supercharged counterparts- you just flash the TCU.

ML500K

+1 used approx 7 quarts but did it twice cause I had to replace the tranny IC plate not long afterwards. I would go with the OEM stuff too...

Dingleberry

forgive my ignorance. what is this plate you speak of and where is it located? got a pic of it?

ML500K

Part no. A140 270 1161 (Y3/6)
Electric Control Unit, its the top piece that holds the solenoids. What happened was that it wouldn't upshift. Star diagnosed this and i had it replaced in 1 hour.

cheers,