The General Motors 4L40E 4-speed automatic transmission was assembled in Strasbourg from 1998 to 2001 and installed in base versions of the BMW 3 Series E46 models under the designation A4S200R. This transmission is essentially a stripped-down version of the 5L40E 5-speed automatic.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | rear |
| Engine volume, l | up to 1.9 |
| Torque output, Nm | up to 200 |
| Recommended oil | ATF Dexron VI |
| Oil capacity, liter | 9.0 |
| Partial replacement, liter | 5.0 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 78 |
Gear ratios GM 4L40E
Using the example of a 2000 BMW 3-Series with a 1.9 liter engine:
| Main | 4.44 |
| 1st | 2.400 |
| 2nd | 1.467 |
| 3rd | 1.000 |
| 4th | 0.723 |
| Reverse | 2.000 |
Using
The transmission was installed on:
- BMW 3-Series E46 in 1998 – 2001.
Disadvantages of the GM 4L40 gearbox
- This is a relatively rare transmission, but it doesn’t have any major reliability issues;
- It’s ruined by infrequent oil changes: the solenoids and channels in the valve body suffer from dirt;
- The adjustable petal-type oil pump is also very sensitive to dirty oil;
- It’s also important to monitor the transmission’s cooling, otherwise the rubberized pistons will simply peel off.
