The Opel AR35 4-speed automatic transmission was produced in France from 1989 to 2003 and installed in rear-wheel drive models such as the Senator, Omega, Frontera, and Monterey. This automatic transmission was essentially a variation of the well-known 4L30E automatic transmission from General Motors.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | rear / all wheel |
| Engine volume, l | up to 3.5 |
| Torque output, Nm | up to 310 |
| Recommended oil | ATF Dexron VI |
| Oil capacity, liter | 8.7 |
| Partial replacement, liter | 4.5 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 80 |
Gear ratios Opel AR35
Using the example of a 1990 Opel Senator with a 3.0 liter engine:
| Main | 3.7 |
| 1st | 2.40 |
| 2nd | 1.48 |
| 3rd | 1.00 |
| 4th | 0.72 |
| Reverse | 1.92 |
Using
The transmission was installed on:
- Cadillac Catera 1 (GM2800) in 1996 – 2001;
- Opel Frontera B (U99) in 1998 – 2004;
- Opel Senator B (V88) in 1989 – 1993;
- Opel Monterey A (M92) in 1992 – 1998;
- Opel Monterey B (M98) in 1998 – 2000;
- Opel Omega A (V87) in 1989 – 1994;
- Opel Omega B (V94) in 1994 – 2003.
Disadvantages of the Opel AR35 gearbox
- This is a fairly reliable automatic transmission, but it can be a bit of a hassle at high mileage;
- The main problems are related to rapid wear of the torque converter clutches;
- Wear debris clogs the solenoids in both valve bodies and corrodes their wiring;
- Vibrations due to critical wear of the torque converter clutches can damage the oil pump bushing;
- Weak points of this transmission include the brake band and gear selector.
