Can anyone tell me the oil capacity for the auto transmission on the 728i
e38 (UK spec) 5HP18. Mine had been leaking at the oil cooler pipes and with
180K on the clock, I decided to replace both the filter and oil. I drained
about 3 litres out but have put around 5 litres back in with no overflow.
The oil is a synthetic lifetime oil which cost me £66.00 from the maindealer
for 5 litres. I want to know approx how much more to buy.