Gearbox Peugeot AMN8

The Peugeot AMN8, or EAT8, 8-speed automatic transmission has been produced in Japan since 2017 and is installed in front-wheel drive Peugeot, Citroën, Opel, DS models with a 2.0 BlueHDi diesel engine. This transmission is essentially a modification of the Aisin TG-81SC and is also known as the AWF8G45.

8-speed AT family: AMN8, ATN8.

Specifications

Type	automatic transmission
Number of gears	8
Type of drive	front
Engine volume, l	up to 2.0
Torque output, Nm	up to 400
Recommended oil	Aisin AW-2
Oil capacity, liter	7.2
Partial replacement, liter	3.5
Maintenance	every 60 000 km
Gearbox lifespan, km	~300 000 km
Weight, kg	95

Gear ratios Peugeot AMN8

Using the 2021 Peugeot 5008 with a 2.0 BlueHDi 180 diesel as an example:

Main	2.953
1st	5.518
2nd	3.183
3rd	2.050
4th	1.492
5th	1.234
6th	1.000
7th	0.800
8th	0.673
Reverse	4.221

Using

The transmission was installed on:

• Citroen C4 Picasso II (B78) in 2018 – …;
• Citroen C5 Aircross I (C84) in 2019 – 2020;
• Citroen SpaceTourer I (K0) in 2018 – …;
• DS DS7 I (X74) in 2017 – 2020;
• DS DS9 I (X83) in 2020 – …;
• Opel Grandland X (A18) in 2017 – 2020;
• Opel Zafira D (K0) in 2018 – …;
• Peugeot 308 II (T9) in 2017 – 2021;
• Peugeot 508 II (R8) in 2018 – 2020;
• Peugeot 3008 II (P84) in 2017 – 2020;
• Peugeot 5008 II (P87) in 2017 – 2022;
• Peugeot Traveller I (K0) in 2018 – …;
• Toyota ProAce 2 (MPY) in 2018 – …

Disadvantages of the Peugeot AMN8 gearbox

• This automatic transmission is used with powerful diesel engines, and its torque converter clutch wears out quickly;
• Then dirty grease clogs the valves in the valve body, and the transmission begins to struggle;
• All remaining transmission problems are related in one way or another to its regular overheating;
• The small heat exchanger becomes clogged by 100,000 km, and the lubricant temperature rises;
• This reduces the lifespan of the Teflon rings, and then the pressure drops, causing the clutches to burn out.