How many liters of lubricant need I to change torque converter? its bmw e60 (520i) '04 with automatic gearbox.

DTC P0741: Torque Converter Clutch (TCC) - Stuck Off
Circuit/System Description
The torque converter clutch (TCC) pressure control (PC) solenoid is part of the control solenoid (w/body and TCM) valve assembly and is not serviced separately. The shift solenoid (SS) 1 supplies transmission fluid to the TCC PC solenoid when commanded OFF. The TCC PC solenoid regulates transmission fluid through the TCC regulator valve in the lower valve body and the TCC control valve in the pump, to the TCC when commanded ON and exhausts fluid when commanded OFF. When the TCC is applied, the engine is coupled directly to the transmission.

Your best bet , take it to a qualified repair shop.

check fluid level and condition of trans--cud be a bad torque converter--a pressure test may need to be done--automatics are very complex--may need an update done at a private shop with an analyser that does a data stream--get it test driven by the mechanic or aamco

it sounds like the gearbox is very low on fluid. maybe the drain bung has come out of the torque converter. you will need the car on stands, and remove the cover under the engine and gearbox with 4 screws. it will be dirty and hard to get to but you need to turn the engine over by hand with a socket on the front of the engine (battery disconnected) until you see a bung on the torque converter which is underneath between the engine and gearbox. there is a small cutaway in the bell housing so that you can see it. there should be a small bolt with an internal 5mm allen key head, if it is loose or there is a just a hole you may have your problem. i am fairly sure a merc of thois age will have the bung. also check the gearbox bung as well. if you get someone to pour fluid in while you are under neath you may be able to see where it comes out. some fluid will come out if you overfill the gearbox without running it, i.e. with a complete fill of fluid you need to start the engine to fill the torque converter.

either you have a problem with the gearbox oil pump or the converter.

How to check & change oil in automatic transmission on 2000 VW Passat 4Motion:

At the bottom of the automatic gearbox (tiptronic) you will find 2 threaded plugs on below surface. First (in front of the car) is for emptying, and second is for filling up. Tightening torque is 24 Nm.



Automatic Transmission Fluid (ATF) checking:
1. Requirements for check:
1.1. Vehicle standing on level surface.
1.2. Transmission must not be in fail-safe mode.
1.3. Shift lever in "P" position, parking brake applied.
1.4. Engine idling.
1.5. Air Conditioner and heater OFF.
1.6. ATF temperature must not exceed 104 Fahrenheit degree (40 Celsius degree) at start of test.
1.7. Only ATF with designation ESSO LT 71 141 may be used. Do not use any lubricant additives.
1.8. Automatic Transmission Fluid ATF - part number: G 052 162 A2 (1 liter wrapping)
1.9. An ATF level check when transmission oil temperature is too low results in overfilling, when too high results in underfilling.
2. CAUTION: Too much or too little ATF will affect the operation of the transmission. The ATF level must be checked at regular intervals.
3. The oil level is correct if a slight amount of oil runs out when ATF temperature is between 86 Fahrenheit degree (30 Celsius degree) and 113 F deg (45 C deg) (caused by increase of oil level when heated). For warmer climates, 122 F deg (50 C deg).
4. Hang filled ATF reservoir VAG 1924 as high as possible.
5. Shift lever in "P" position, engine running at idle.
6. Place oil drip pan under transmission oil pan.
7. Remove ATF filler plug (at the bottom of the automatic gearbox you will find 2 threaded plugs on below surface. First (in front of the car) is for emptying, and second is for filling up.
8. With ATF temperature between 86 Fahrenheit degree (30 Celsius degree) and 113 F deg (45 C deg), for warmer climates, 122 F deg (50 C deg), a slight amount of oil will flow from filler hole when ATF level is correct.
9. If necessary drain or top off ATF to attain correct oil level. Top ATF with filler hook from VAG 1924 ATF reservoir. Insert VAG 1924 (tool) ATF reservoir filler hook into filler hole and top off until a slight amount of oil flows from filler hole.
NOTE: Fit filler hook into one of the oil deflector cap slots placed on the filler opening.
CAUTION: Do not press filler hook upward or oil deflector cap can be pushed off.
10. Reinstall ATF filler plug. Tightening torque is 24 Nm.

The automatic gearbox oil capacity (drain & refill) is 2,6 ... 3,0 litres.
The front differential oil capacity is 0,75 litres. Oil type: SAE 75 W / 90 Synthetic.
The rear differential oil capacity is 1,5 litres. Oil type: SAE 90.


Another automatic gearbox type for 2.5 TDI engine:



Front differential versions:



Rear differential versions:



Please do rate my response. Thanks!

Torque convert spins up when you accelerate, increasing fluid pressure to your automatic transmission to engage engine. Pressures vary between shifts to change gears ratios. Hope that makes sense...

if i was you i would change the torque converter its the safest bet, the box must have been very low on oil and maybe slipping for a time to burn the oil black!!!
however you may still get away with cleaning the internal filter and just flushing the old box out with ATF and refilling it with fresh ATF oil
yes,,its been cooked up, but mine still worked for years after i cooked it up and it changed much smother after that too??

possably a baring inside your gear box, if you know how 2 change a gearbox, good stuff, but first take it to a garage to see if they can pick up on it, before you do any work

hi Roger, to change the manual gearbox to an automatic one would be extreemly difficult, you would need a complete donor vehicle including the EGS control unit and the complete wiring harness and very deep pockets with unlimited funds. It would be more cost effective to buy an automatic vehicle. hope this helps. regards mark.