raverx3m

replaced the intake manifold with broken flaps didnt fix the transmission shudder
what it do:
when accelerating slowly the rpm bounces and i can feel the transmission shudder/studder or whatever its called
it seems to shift fine from gear to gear but when in gear it shudder
and its not slipping constantly. its more like intermittent slipping.or studder.

i dont know what type of transmission fluid is in it or when it was replaced last. it has 194k previous owner said car made love to freeway long time (90 mile daily round trip)

im planning to flush the transmission fluid including TQ
but i keep reading about some a89 type new transmission that needs a "new" style filter and i dont know how to tell what mine is
my vin is WDDGF8BB4BR169033

and where would be the cheapest place to get the flush kit

how hard is it to clean the valve assembly on this car?

cvx5832

A89. At 194k and fluid never replaced, highway miles or not, is definitely worth a shot. That said, don't expect miracles from a neglected transmission.

raverx3m

i didnt realize those were options for the specific vin.
i thought those were what was available. Thanks

is oem transmission fluid only one is is there something available from oreillys that is oem spec? Filter and fluid

JettaRed

iTrader: (1)

https://www.fcpeuro.com/products/mer...tosin-7229late

TimC300

In the W204 theres an earlier version (pre-2010) and later version of the Transmission. For this convo the difference is basically a deeper pan, different fill tube, different filter and different transmission fluid.

As stated above you have a 2011 which has the later version. Your transmission uses Mercedes spec 236.15 fluid. Which is blue in color.

heres the link to Mercedes BEVO so you can look up your cars operating fluids: https://operatingfluids.mercedes-benz.com/sheet/236.15

I would only use fluids meeting the Mercedes spec. I dont buy Mercedes brand since its expensive, for example I bought Shell transmission fluid for mine.

This is the list of Mercedes approved transmission fluids for your car.




Maybe you should go on FCPEuro and check out the prices. They should have everything you need. Fill in your cars info and it should show all your options. Just be sure the listing says something like "for option code A89".
















Above is all the parts you will need, minus the fluid. i bought my fluid off Amazon cheap but dont see ATF 134FE for sale on there. I bought all my other parts from IDParts because they are local and i can just pick up the parts. I also bought a new pan because mine is all rusted.

Gasket and bolts I bought Elring, got the CRP 12x17x1.5mm gasket for the transmission pan drain plug, went with an OEM filter,

May be worth checking out IDParts. Its mainly for diesel Mercedes vehicles but i find alot of items I need.

https://www.idparts.com/automatic-tr...00-p-3723.html





I also got my differential fluid from IDParts. For the front and rear diff i used a little less than 2 bottles total.

raverx3m

so these cars can handle non oem fluid then?
because hondas are extremely sensitive to non oem fluids.
i just flushed a 90s honda odyssey transmission that was shifting like a16 year old slamming gears. it blew out 2 engine mounts. but as soon as i put oem fluid(complete flush) it shifted like butter.


i just did transmission relearn and tried the lube guard that the youtube guy recommended.and it helped a little bit but i still get that rpm fluctuation while cruising.

feels like slippage during low(under 3000rpm) acceleration. but dont feel any weird shifting just cruising slippage.
i had transmissions slipping in honda v6 engines and its rather clear slippage. but i dont know what to make of this fluctuating pull while cruising.

could it be an ecm problem?
or bad fuse box.
i am getting some fuse box codes for front and rear fuse box circuits

cvx5832

Not sure about your A89 transmission, but my non-A89 7G has been very happy with Redline D6. Now with 240k.

JettaRed

iTrader: (1)

JettaRed

iTrader: (1)

What codes are you getting?

raverx3m

none so far. previous owner cleared everything before selling
im getting bunch of fuse box and what seems like random electrical codes.
no engine or trnsmission specific codes so far.

this car was driven on freeway daily. does that wear out the lock up solenoid faster than city driving?

i was reading the mhh or whatever that forum called and someone mentioned that this specific shudder while cruising and right after switching gear is my lock up disk being worn out and trying to engage constantly

but then someone also said that it could be my lockup solenoid faulty.
and then another person said they fixed this shudder by doing transmission update
and then people also said they had to replace transmissions for same shudder...
this is turning into another balance shaft issue that i had to fix on my old e350.

the more i read the more components seem to be involved in this. so far it could be EGR transmission, lock up clutch, lock up solenoid, programming, tcm,

cvx5832

Given that slip ratios are constantly calculated and checked against a map, if there's something wrong, that code will surely be in the EGS. Especially slip, which directly affects emissions.

raverx3m

Ordered from their ebay store. Thanks for the info

raverx3m

well looks like i got scammed.
after transmission flush it seems like it had red fluid in it
and probably a ton of friction modifiers so that it ran while he was trying to sell this junk
after replacing fluid with blue it will not even engage in gear just spins in every gear

cvx5832

Who did the transmission fluid change? And how can you tell it had friction modifiers?

raverx3m

fluid was reddish brown.
had alot of grey sludge in the pan
car was fluctuating rpm that i described in another thread
i did the fluid change its safe to assume he put some friction modifier to get it to run because when i test drove it i didnt feel anything
only about 20-30 minutes into driving when i got on the freeway i started feeling transmission slip while cruising on freeway
and the dude is being a lil beach and never responded to my messages after deal was done.
he claimed that mechanic said it needs spark plugs replaced...

raverx3m

it had no blue in it at all.

cvx5832

Thanks. Did you fill the transmission while the car was running?

raverx3m

i watched that euro guy on youtube did same steps as he did
cycled through gears etc
rpm speeds up when in gear.
slows down when in neutral or park

raverx3m

why? what are you thinking?

TimC300

So when you put the car in Drive it does not go at all?

Heres a sheet I made for when I get around to replacing my trans fluid: I dont have the 7g+ trans though.

raverx3m

yea it does not engage.
im assuming the tq is dead.
i dont know how many patches were in that fluid from previous owner.
probably destroyed the clutches with all the additives and red atf instead of blue.
rpm should drop when in gear. mine goes up instead.
dude knew what he did because he stopped responding to me right after he sold the car.

but he left bunch of paperwork from the shop that did the work last (the shop that supposedly told him that transmission was good and it just needs the spark plugs) im gonna call the shop and see what they tell me

TimC300

Can always get the car in the air, bring the trans fluid temp to 45C and remove the drain plug and check the fluid level. It the fluid drips out the level is good, if nothing comes out then its maybe under filled, if fluid pisses out its maybe over filled.

Odd that no check engine light is on. Did you scan the car for any fault codes?

raverx3m

dont have a lift. its a diy in my garage.and car is slightly lowered with "blownoemshockracing"

bought it for daily driver for better mpg but now its curretly costing me around 1000 dollars per zero miles

TimC300

Same here, i dont have a lift and my parking area is gravel. I have to drive my car on wood planks just to fit my floor jack under it. I hate going under the car.

cvx5832

No further input from me, unfortunately. If you filled it correctly and it's slipping, transmission could be toast. Any codes? I can't remember if you've already checked.