Mercedes-Benz GL-Class / GLS SUV (X166) · GL / GLS
X166
Halfway through its life, the car changed name.
- Production
- 2012–2019
- Body
- SUV
- Chassis
- X166

Halfway through its life the car changed name: the GL-Class became the GLS in 2015, positioning itself explicitly as the S-Class of sport utility vehicles.
Built at Tuscaloosa from June 2012, the X166 offered the M276 V6, the M278 and M157 V8s and the OM642 diesel, with 7G-TRONIC and later 9G-TRONIC, permanent 4MATIC and optional AIRMATIC with the ACTIVE CURVE SYSTEM anti-roll setup.
The AMG GL 63 and its GLS 63 successor produced 585 PS. Production ran to April 2019.

Every model.
11 model phases across 2012–2019 — engines, transmissions and series codes for the X166.
| Malli | Mallivuodet | Valmistettu | Alusta | Moottori | Vaihteisto | Yhteensä |
|---|---|---|---|---|---|---|
| GL 350 BlueTEC 4MATIC | 2013–2016 | 03.2012–12.2015 | 166.824 | 642.826 | 722.9 | sisältyy yllä olevaan |
| GL 400 4MATIC | 2014–2015 | 09.2013–12.2015 | 166.856 | 276.821 | sisältyy yllä olevaan | |
| GL 450 4MATIC | 2013–2014 | 06.2012–09.2014 | 166.872 | 278.928 | 722.9 | 33,368 |
| GL 450 4MATIC | 2015–2016 | 07.2014–01.2016 | 166.864 | 276.821 | 722.9 | sisältyy yllä olevaan |
| GL 500 / GL 550 4MATIC | 2013–2016 | 03.2012–12.2015 | 166.873 | 278.928 | sisältyy yllä olevaan | |
| AMG GL 63 4MATIC | 2013–2016 | 09.2012–12.2015 | 166.874 | 157.982 | 722.9 | sisältyy yllä olevaan |
| GLS 350 d 4MATIC | 2017–2019 | — | 166 | 642 | 722.9 | sisältyy yllä olevaan |
| GLS 400 4MATIC | 2016–2019 | — | 166 | 276 | 725.0 | sisältyy yllä olevaan |
| GLS 450 4MATIC | 2017–2019 | — | 166 | 276 | 722.9 | sisältyy yllä olevaan |
| GLS 500 / GLS 550 4MATIC | 2017–2019 | — | 166 | 278 | 725.0 | sisältyy yllä olevaan |
| AMG GLS 63 4MATIC | 2017–2019 | — | 166 | 157 | 722.9 | sisältyy yllä olevaan |
* Julkaistu tuotantoluku kattaa kyseisen mallin kaikki sarjat; lähde ei erittele sitä tarkemmin.

Year by year.
From GL-Class launch to the GLS rename — the changes that identify early and facelift X166 seven-seaters.
- 2013
- The second-generation GL reached the US with standard seven-seat packaging, 4MATIC, AIRMATIC air suspension, electromechanical steering and COLLISION PREVENTION ASSIST.
- The range included GL 350 BlueTEC, GL 450, GL 550 and GL 63 AMG, with Crosswind Assist and ATTENTION ASSIST standard.
- 2017
- The facelift renamed GL-Class as GLS and introduced a more upright grille, revised hood, bumpers, headlamps and LED tail-lamp graphics.
- A new steering wheel, freestanding media display and touchpad modernized the cabin; 9G-TRONIC replaced the seven-speed automatic on non-AMG versions.
- DYNAMIC SELECT provided configurable drive programs, while the GLS 63 adopted Mercedes-AMG branding and 577 hp in US specification.
- 2019
- The X166 completed its final US model year before replacement by the X167 GLS.
