The Mercedes-Benz GLS X166 is the SUV the world bought before the Maybach GLS existed. Sold from 2015 model year through the 2019 model year, the X166 is technically a continuation chassis of the second-generation Mercedes GL-Class introduced for 2013, with a substantial 2016 facelift that brought a new front fascia, the 9G-TRONIC transmission as standard across the range, and — in a Mercedes naming reshuffle that affected most of the SUV catalogue — a rename from GL-Class to GLS. The same hardware shipped under both names: GL 350, GL 500, GL 63 AMG until late 2015, then GLS 350, GLS 500, GLS 63 AMG from MY2017 onward. Mansory's X166 programme is dimensioned around the post-facelift bodyshell and accepts both naming-period donors as a single SKU set; the front bumper has a small SKU split between pre-facelift and post-facelift bumper apertures, but all other components are common.
In Hodoor's full-size Mercedes-Benz SUV stack, the X166 sits below the current GLS X167 (2020+) standard programme and the Maybach GLS X167 luxury flagship. The smaller GLE V167 has its own kit at that page; the GLE Coupe C167 lives at this one. The previous GL-Class slug (also covering X166 cars but with the older GL naming convention) sits at this URL.
The X166 GLS sits on a body-on-frame floor architecture introduced for the 2013 model year GL — a heavy, cleat-class platform with a full ladder-frame backbone and four-corner air suspension as standard. The car is a true seven-seat full-size SUV: wheelbase 3 075 mm, length 5 130 mm, width 1 982 mm (excluding mirrors), kerb weight 2 480 kg in GLS 350 trim and approximately 2 530 kg in GLS 63 AMG. Suspension is the Mercedes-Benz AIRMATIC air-spring system with the optional Active Curve System active anti-roll bars on AMG and 500 trims. Drivetrain is the 4MATIC permanent four-wheel drive with a low-range transfer case option (the GL-class heritage feature, retained through the X166 generation but dropped in the cleaner X167 successor). The X167 GLS that replaced this car in 2020 moved to a unibody-with-aluminium-floor architecture, lost the low-range option, gained 84 mm of wheelbase, and is dimensionally a meaningfully different chassis — body panels do not transfer between X166 and X167 in any combination.
Mansory's X166 programme is body-and-wheels by default; engine modules are optional and quoted as separate SKUs against specific engine codes within the X166 range:
Mid-aggression catalogue, dimensioned to a +30 mm bonded fender flare with a replacement front-and-rear bumper pair. Hand-laid 2x2 twill weave on visible aerodynamic pieces, PU-RIM composite on the bumpers and fenders, with optional dry-carbon for the bonnet. Components:
Factory X166 GLS ships at 19"-21" depending on trim; AMG donors run to 22". Mansory X166 fitment is a flat 22" staggered forged set: 295/30 R22 front and rear in standard fitment, PCD 5x112, centre bore 66.5 mm, ET range matched to the +30 mm flare. Patterns: M.7 classic multi-spoke, FD.16 dual-spoke concave, YN.5 double-Y. Finishes: satin black, polished face with contrast spoke, two-tone diamond-cut, matte gunmetal, paint-to-sample matched to the body. The +30 mm flare absorbs the 295-section tyre cleanly; owners running standard arches without the bonded flare are routed to a 21" forged option instead. Forged catalogue: hodoor.world/collection/forgedwheels. The wheel set carries TÜV documentation against X166 GLS 63 AMG kerb weight at 2 530 kg.
The X166 is now a six-to-eleven-year-old chassis. The order book in 2026 reflects that — strong second-hand collector demand on AMG donors, steady tail of long-term-owner refreshes on V8 cars, falling commission rates on V6 and diesel donors as the 9G-TRONIC drivetrain ages out. Geographic profile:
Body kit (full): four to five weeks from the workshop. Power module (where applicable): four weeks for calibration plus exhaust commission. 22" forged wheel set: four weeks. Email [email protected] with VIN and donor specification (GLS 350d / GLS 400 / GLS 500 / GLS 63 AMG, pre-facelift or post-facelift), or message WhatsApp +44 7488 818747 for landed-quote channels. Right-hand-drive UK and Asian-market donors ship on the same SKU set as left-hand-drive cars; the kit is not handed.
Will the X166 kit fit the current X167 GLS or Maybach GLS?
No. The X166 and X167 are different platforms with different bumper lines, fender geometry, door-shut-lines and rear-quarter signatures. The X167 GLS has a separate Mansory programme (linked here) and the Maybach GLS X167 a third dedicated kit (here). Panels do not transfer in any combination.
Pre-facelift GL or post-facelift GLS — same kit?
Two SKUs on the front bumper only — the pre-facelift GL-Class (2013-late 2015) bumper aperture is different from the post-facelift GLS (2016-2019). All other components (bonnet, fenders, rear bumper, side skirts, roof spoiler, mirrors) are common between the two faces. Specify the donor's build year at order so the correct front bumper SKU is bundled.
Does the kit affect MAGIC BODY CONTROL or Active Curve System?
No. The kit is body-and-wheels; AIRMATIC and Active Curve System run on factory calibration. The 22" forged wheel set is dimensioned to the OEM rolling circumference within Mansory's tolerance; ride-height and active-roll calibration are unaffected.
Slug typo — why does the URL say "gly-class"?
Historical slug from the original Hodoor catalogue migration when the URL convention was set against an early product import. The product is the Mercedes-Benz GLS X166 — the slug is a fixed legacy identifier for SEO continuity reasons and does not affect the part fitment, the SKU set, or the order channel.
GLS 63 AMG quad-exhaust vs GLS 350d twin-exhaust — does the rear bumper need to be re-ordered if the donor is later swapped from diesel to AMG?
Yes. The rear bumper diffuser is dimensioned around the donor's specific exhaust bezel count. Quad-bezel rear bumpers fit GLS 63 AMG and GLS 500 donors; twin-bezel rear bumpers fit GLS 400 and GLS 350d donors. A donor swap that changes the exhaust footprint requires the matching rear bumper SKU.
Does the third-row seat geometry change with the kit installed?
No. The third-row seat, the second-row sliding mechanism and the cargo-area floor all run on OEM hardware. The Mansory programme is exterior body and wheels only; interior package space is unchanged across all seven seating positions.
