Examination
Maintaining the correct oil level is essential for proper automatic transmission operation. Therefore, the check should be carried out with increased attention every 10,000 km.
The measuring rod is located in the engine compartment. ATF is also poured here (Automatic Transmission Fluid).
Attention: The check must be carried out with the box warmed up (80°С).
Warm up the engine, the oil in the box should have a temperature of about 804.
Put the unloaded car on a flat area, tighten the hand brake.
The engine must be running at idle when checking to fill the torque converter.
Set the gear lever to position «R», apply the handbrake.
Remove the oil-measuring rod and wipe it with a clean, lint-free cloth, preferably with a piece of leather. Then fully insert the rod, pull it out again and read the reading.
At a normal level on a heated box (around 80°C) The oil should reach the MAX mark on the stem.
Attention: Since February 1985, a new oil dipstick has been installed, with which you can quickly determine the oil level. After a test drive and warming up the temperature of the oil in the box to 40°C, the oil level should not rise above the lower ball on the measuring rod. At an oil temperature of about 80°C, its level should be between the MIN and MAX marks on the dipstick. The new dipstick can also be installed on older vehicles.
Oil is poured through a clean funnel, preferably with a fine mesh. The difference in volume between the MAX and MIN·marks is 0.5 liters.
Caution: Do not overfill with oil. Too much of it can cause malfunctions in the operation of automation. When overfilling, be sure to drain or suck out excess oil with a syringe.
At the same time, check the oil on the dipstick for smell and color. Burnt pads give off a burnt smell. Contaminated oil can lead to transmission control problems.
Attention: Only fill with ATF approved by BMW.
More than 100 ATF oils are listed in the car's instruction manual. In principle, all oils for automatic transmissions with the designation «Dexron II».
All permitted oils are allowed to be mixed. Do not use any additives or additives.
If the torque converter is not filled with ATF, do not start the engine or tow the vehicle.
After checking the level and topping up, fully insert the dipstick again.
Press the brake pedal and slowly change all gears. Then check the oil level again.