The Peugeot AT8 4-speed automatic transmission has been assembled at a plant in France since 2009 and is installed in many modern PSA models, most recently budget models. This transmission, like its Renault DP2 counterpart, is designed for engines with up to 200 Nm of torque.
Front-wheel drive 4-speed AT: AL4, AT8.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | front |
| Engine volume, l | up to 2.0 |
| Torque output, Nm | up to 200 |
| Recommended oil | Mobil ATF LT 71141 |
| Oil capacity, liter | 6.7 |
| Replacing the oil | every 65 000 km |
| Replacing the filter | every 65 000 km |
| Gearbox lifespan, km | ~200 000 km |
Gear ratios Peugeot AT8
Using the example of a 2014 Peugeot 301 with a 1.6 liter engine:
| Main | 4.700 |
| 1st | 2.724 |
| 2nd | 1.499 |
| 3rd | 1.000 |
| 4th | 0.710 |
| Reverse | 2.457 |
Using
The transmission was installed on:
- Citroen C3 II (A51) in 2009 – 2012;
- Citroen C3 Picasso II in 2009 – 2012;
- Citroen C4 II (B71) in 2010 – 2016;
- Citroen C-Elysee I (R31) in 2012 – 2017;
- Citroen DS3 I (A55) in 2009 – 2016;
- Citroen DS4 I (B75) in 2011 – 2012;
- Peugeot 207 I (A7) in 2009 – 2013;
- Peugeot 301 I (M33) in 2012 – 2017;
- Peugeot 308 I (T7) in 2011 – 2015;
- Peugeot 408 I (T73) in 2010 – 2017.
Disadvantages of the Peugeot AT8 gearbox
- Keep the heat exchanger clean, otherwise the automatic transmission will go into emergency mode;
- The most common failures in the transmission are the pressure control solenoids and the torque converter lockup solenoids;
- Next, the bushings wear out and the clutches wear out due to a drop in oil pressure;
- Friction dust then clogs the valve body and causes jerking during gear shifts.
