The F23 5-speed manual transmission was produced at Getrag from 1998 to 2011 and was installed in Opel models such as the Astra, Vectra, and Zafira with engines up to 230 Nm of torque. This transmission was also installed in American cars such as Pontiac, Saturn, and Chevrolet.
Specifications
| Type | manual transmission |
| Number of gears | 5 |
| Type of drive | front / all wheel |
| Engine volume, l | up to 2.6 |
| Torque output, Nm | up to 230 |
| Recommended oil | API GL-4, SAE 75W-85 |
| Oil capacity, liter | 2.0 |
| Replacing the oil | every 60 000 km |
| Replacing the filter | every 60 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 46 |
Gear ratios Opel F23
Using the example of a 2003 Opel Zafira with a 2.2 liter engine:
| Main | 4.170 |
| 1st | 3.577 |
| 2nd | 2.022 |
| 3rd | 1.348 |
| 4th | 0.977 |
| 5th | 0.909 |
| Reverse | 3.308 |
Using
The transmission was installed on:
- Opel Astra G (T98) in 1998 – 2005
- Opel Astra H (A04) in 2004 – 2007
- Opel Corsa C (X01) in 2003 – 2006
- Opel Combo C (F06) in 2004 – 2011
- Opel Meriva A (X03) in 2004 – 2010
- Opel Signum A (Z03) in 2003 – 2005
- Opel Vectra B (J96) in 1999 – 2002
- Opel Vectra C (Z02) in 2002 – 2007
- Opel Zafira A (T98) in 1999 – 2005
- Chevrolet Cavalier 3 in 2000 – 2005
- Chevrolet Cobalt 1 (GMX001) in 2004 – 2010
- Chevrolet HHR 1 (GMT001) in 2005 – 2011
- Pontiac G5 1 (GMX001) in 2005 – 2007
- Pontiac Grand Am 5 (GMX130) in 1998 – 2005
- Pontiac Sunfire 1 in 1999 – 2005
- Saturn Ion 1 (GMX357) in 2002 – 2007
- Saturn Vue 1 (GMT315) in 2001 – 2007
Disadvantages of the Opel F23 gearbox
- This is a reliable manual transmission, and the only complaint often made is difficulty shifting;
- The cause of the manual transmission lever sticking is wear on the plastic sleeve and the gearshift sleeve;
- A loose gear selector mechanism can also be the culprit;
- After 200,000 km, the input shaft bearings often start to hum;
- To eliminate transmission noise, add more than 2 liters of oil to the transmission.
