LEGO Mercedes-Benz G 500 PROFESSIONAL Line (42177)

Name: LEGO Mercedes-Benz G 500 PROFESSIONAL Line
Brand: LEGO
SKU: 42177

A boxy Technic G-Wagon that actually drives, steers and shifts gears like the real thing.

Brick Rated Score

4.2/5

Set 42177 · 2024

Pieces2,891

Minifigsn/a

Year2024

Set number42177

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The verdict

I have a soft spot for Technic that pulls off real mechanics AND a body I'd happily leave on a shelf, and this one manages both.

You get a working straight-6, four-wheel drive with diff locks, and steering that lines up dead straight, all wrapped in that unmistakable boxy G-Class shape. It isn't cheap and there are a couple of fiddly bits near the end, but for the money it's one of the more satisfying licensed Technic builds I've handled from 2024. If you want function and looks in the same box, I'd grab it.

Best for: Technic fans who want working mechanics and a display-worthy shape in one build

The full review

The Mercedes-Benz G 500 PROFESSIONAL Line is one of those Technic releases that won me over faster than I expected. It's a 2,891-piece LEGO(R) set that manages the thing Technic doesn't always pull off: it's a proper working machine and a model you'd genuinely want on display. The real G-Wagon is famous for being a brick on wheels, all boxy angles and squared-off corners, and this set leans right into that. What you end up with actually looks like the truck, not a vague suggestion of one.

Under that boxy skin there's a lot going on, and this is the part that got me. You've got a working straight-6 engine, four-wheel drive routed through three differentials, diff locks for the off-road stuff, and a pair of shifters behind the front axle. One switches between low and high torque, the other flips you between drive and reverse. The steering is the detail I keep coming back to: the wheel sits dead straight when the front wheels point straight ahead, which sounds small until you notice how often Technic cars get it wrong. The suspension is smooth too, and the whole drivetrain feels engineered rather than approximated.

I'll be straight with you about the rough edges. This is a 249 dollar set, so it's a real commitment and not an impulse buy. A few builders have grumbled that the hood hinges drift out of alignment and open a little awkwardly, and there's a bit of flex in the beam that holds the dashboard and windshield together. If you were hoping the off-road PROFESSIONAL badge meant a working winch, it doesn't have one, and that's a fair thing to be mildly annoyed about. And with an 18+ Technic model like this there are no minifigs, so don't expect a little driver.

If you're the kind of builder who loves watching gears mesh and axles turn, and you also want a finished model that looks sharp on a shelf, this hits both marks better than most. The Brickset community has it sitting at a solid 4.3 out of 5, which tracks with how much people seem to enjoy it. If you're purely after raw function-per-dollar, or you want playable minifig action, look elsewhere. But for a display-and-function Technic build that celebrates a genuinely iconic vehicle, I'd recommend this one without hesitating.

The parts story

What the build is actually like, and the pieces worth knowing about.

The build has a rhythm I really liked. The chassis and all the mechanical guts come together fast, and by around bag 6 you've basically got a rolling, shifting, steering skeleton done. From there the pace changes and the rest is bodywork, which is where the boxy G-Class shape slowly appears panel by panel. It kept me engaged the whole way because there are neat little tricks tucked in throughout, like the steering drivetrain that keeps the wheel centered and the service-position hood that props up like the real truck. It's a meaty build that rewards you at both ends: mechanical satisfaction first, then the styling payoff.

For parts nerds there's real stuff here. The set introduces new molds including a Technic axle and pin connector angled at 168.75 degrees, a bigger 87.9 x 36 off-road tyre, a fresh wheel cover, and a new crank disc and piston combo that lets LEGO build a tighter, smaller engine. On top of that, around thirty elements showed up for the first time in the new Reddish Orange (color 402), from beams to panels to fairings, so recolor hunters have plenty to grab. On value, it works out to roughly 8.6 cents per piece, which is decent for a licensed Technic model and cheaper per part than something like the McLaren P1.

Fun facts

01The set celebrates 45 years of the G-Class, which first rolled off the line in Graz, Austria in 1979 and has barely changed its boxy silhouette since.
02The real G-Wagon exists partly because the Shah of Iran suggested Mercedes build a rugged off-roader, and it later won the grueling 10,000km Paris-Dakar rally in 1983.
03It was designed by Milan Reindl and uses a brand new crank disc and piston system that lets Technic pack a working straight-6 into a smaller space than earlier sets could manage.
04Around thirty parts debuted in the new Reddish Orange color inside this set, so it's a small treasure chest for builders who chase fresh recolors.