2026 Mercedes-Benz GLS facelift review: Big in size, bigger on luxury

At first glance, this car looks like a private jet that decided to trade its wings for four massive 21-inch wheels—but is it really just an S-Class on stilts, or is there more to this humongous German flagship than just sheer presence?

Buying a luxury car today is more confusing than ever. You are standing at a crossroads where electric power meets traditional V8 muscle, and where digital screens are slowly replacing the tactile joy of leather and wood. But for the elite Indian buyer, the search for the “ultimate” usually ends at one three-pointed star. The Mercedes-Benz GLS has long been crowned the “S-Class of SUVs,” but with the 2026 facelift, Mercedes is trying to prove that even a king can learn new tricks.

If you’re planning to buy this car, here’s what you must know: the 2026 iteration is a masterclass in “more.” More screens, more power, more intelligent suspension, and unfortunately, a bit more strain on your bank account. Having personally tested and analyzed over 100 high-end machines in the last 12 years—from the whisper-quiet Rolls-Royces to the fire-breathing Lamborghinis—I can tell you that the GLS has a unique way of making you feel invincible.

But here’s the catch—behind the new “Digital Light” headlamps and the standard “Superscreen,” competition from the BMW X7 and the Range Rover is fiercer than ever. Is the GLS still the wholesome luxury statement it used to be, or has it become a bit too “tech-heavy” for its own good? This is where things get interesting. Let’s dive into Part 1 of our expert analysis.

H2: Quick Overview: The Flagship Refined

The 2026 Mercedes-Benz GLS facelift arrived in India with a clear goal: to bridge the gap between the “standard” luxury SUV and the ultra-lavish Maybach world. While it retains its iconic, massive footprint, the updates are focused on hardware and software.

Under the hood, every engine option—whether you pick the smooth 450 petrol or the torque-heavy 450d diesel—now comes with 48V mild-hybrid assistance. But the real headline for 2026 is the “MBUX Superscreen” and the “Cloud-Based Suspension” that uses real-time road data to predict every bump before you hit it. In India, it remains the default choice for the industrialist who needs to seat seven people in absolute, uncompromised comfort.

H2: Exterior Design Analysis: Commanding the Road

In my 12 years of reviewing automobiles, few cars have the “get out of my way” aura of a GLS. For 2026, Mercedes hasn’t reinvented the wheel; they’ve just made it shinier.

H3: The New Lighting Signature

The updates are subtle but high-tech.

  • Digital Light Headlamps: These are now standard. They don’t just light up the road; they use millions of micro-mirrors to project warning symbols or guide lines directly onto the tarmac. It’s a bit of “sci-fi” tech that makes night driving through rural India significantly safer.
  • The Star Pattern: Look closely at the DRLs and taillamps. They now feature a triple “three-pointed star” signature. It’s a lovely detail that reminds everyone behind you exactly what you’re driving.

H3: Musketry and Sophistication

  • The Grille: It’s even larger now, with four horizontal louvers finished in Silver Shadow. It gives the GLS a wider, more upright face that demands respect.
  • Wheel Designs: You get 21-inch wheels as standard, but for the 2026 facelift, the new 22-inch AMG multi-spoke rims are the ones to have. They fill the massive wheel arches perfectly.
  • Ground Clearance: At 200 mm (unladen), it sits tall. But because it has air suspension, you can raise it even further to clear those monsoon-damaged roads without breaking a sweat.

H2: Interior Design & Comfort: The “S-Class of SUVs” Realized

If the exterior is about presence, the interior is about peace. The 2026 Mercedes-Benz GLS facelift review: Big in size, bigger on luxury title is truly earned the moment you shut the soft-close doors.

H3: The MBUX Superscreen Revolution

The dashboard has undergone a digital surgery.

  • Triple Screen Setup: You now get three 12.3-inch displays under a single glass panel. There’s a screen for the driver, a central command center, and a dedicated screen for the front passenger.
  • MB.OS Integration: The system runs on the new Mercedes-Benz Operating System. It uses AI to learn your habits. If you usually call your office at 10 AM, the car will suggest the contact on the screen exactly at that time. It’s like having a digital butler.

H3: The Seven-Seater Palace

  • Second Row Royalty: Space here is gargantuan. You get power-adjustable seats that recline like business-class pods. The “Boss Mode” allows the rear passenger to push the front seat forward, creating a lounge-like legroom experience.
  • Third Row Reality: Direct to the reader—unlike many “5+2” SUVs, the GLS third row is actually usable for adults on shorter trips. It even has its own climate zone and USB-C ports.
  • Materials: Every surface is draped in Nappa leather or high-quality wood trim. The new “Maybach-style” air vents with vertical slats add a touch of old-school class to the high-tech cabin.

H2: Engine Specifications & Performance: Effortless Might

Mercedes knows that a car this big needs a heart that doesn’t struggle. The 2026 lineup in India is simpler yet more powerful.

H3: Technical Specifications Table (2026 Models)

FeatureGLS 450 4MATIC (Petrol)GLS 450d 4MATIC (Diesel)
Engine Type3.0L Inline-6 Turbo3.0L Inline-6 Turbo
Hybrid System48V Mild-Hybrid (ISG)48V Mild-Hybrid (ISG)
Max Power381 hp (+20 hp boost)367 hp (+20 hp boost)
Max Torque500 Nm (+200 Nm boost)750 Nm (+200 Nm boost)
0-100 km/h6.1 Seconds6.4 Seconds
Transmission9G-TRONIC Automatic9G-TRONIC Automatic

H3: Performance Dynamics

  • The Inline-6 Silk: Both engines are incredibly refined. The petrol is whisper-quiet, while the diesel offers a relentless wall of torque that makes this 2.5-tonne SUV feel surprisingly light on its feet.
  • The ISG Advantage: The Integrated Starter Generator (ISG) ensures that the stop-start system is completely seamless. You won’t feel the engine “cranking”; it just wakes up instantly.
  • 9G-TRONIC: The 9-speed gearbox is tuned for comfort. It shifts so smoothly that you only realize a gear change has happened by watching the tachometer.

H2: Mileage and Fuel Efficiency: The Heavyweight’s Appetite

Even when you’re spending over ₹1.5 crore, the range on a tank matters for those long Bombay-to-Goa runs.

  • Petrol Efficiency: Expect 7-9 kmpl in the city and 11 kmpl on the highway.
  • Diesel Efficiency: This is the highway king. It can realistically deliver 10-12 kmpl in the city and an impressive 14-15 kmpl on a steady cruise.
  • Fuel Tank: With a 90-litre capacity, the diesel version can theoretically give you a range of nearly 1,000 km on a single fill-up.

H2: Features & Technology: Beyond the Screens

The 2026 GLS is packed with “intelligent” luxury that goes beyond just looking pretty.

  • Energizing Comfort: This feature coordinates the climate control, ambient lighting, music, and seat massage to “refresh” or “relax” you based on your mood.
  • Augmented Reality HUD: The Head-Up Display projects navigation arrows directly onto the windshield, so they look like they are floating on the road ahead of you.
  • Soft-Close Doors: In a car this quiet, you don’t want to be slamming doors. A gentle push is all it takes for the vacuum pumps to pull them shut silently.

H2: Ride Quality & Real-World Driving: The “Cloud-Based” Magic

How does a 2.5-tonne titan handle the unpredictable, often cratered roads of an Indian monsoon? This is where the 2026 Mercedes-Benz GLS facelift review: Big in size, bigger on luxury reveals its most expensive secret: E-Active Body Control.

In my 12 years of reviewing luxury cars, I’ve seen many air suspension systems, but this is different. It uses a 48V electrical architecture to power four individual actuators at each wheel.

  • Road Surface Scan: A stereo camera scans the road ahead at 1,000 times per second. If it sees a pothole or a patch of broken tarmac in Jodhpur or Mumbai, it pre-adjusts the suspension before you reach it. The result? You don’t feel the bump; the car simply absorbs it and stays level.
  • The “Curve” Function: Have you ever felt that annoying “lean” when a tall SUV takes a corner? The GLS has a “Curve” mode that leans the car into the bend—much like a motorcyclist—to neutralize centrifugal force. It’s an eerie but incredibly comfortable sensation.
  • The Off-Road Recovery: Here is an expert insight—if you ever get stuck in deep sand (a real possibility in Rajasthan), the GLS has a “Free-Driving Mode.” The car literally bounces its body up and down to increase the tire pressure and shake itself free. It looks hilarious, but it works brilliantly.

But here’s the catch—while it’s a master of comfort, the GLS is no sports car. If you try to drive it like an AMG sedan, you’ll be reminded of its massive inertia. It is built to waft, not to race.

H2: Safety Features: The 9-Airbag Fortress

Safety isn’t just a list of features for Mercedes; it’s a legacy. The 2026 GLS is arguably one of the safest places to be on Indian roads.

  • Standard 9 Airbags: Unlike most cars that stop at 6 or 7, the GLS provides nine airbags, including a driver’s knee airbag and side-impact airbags for the second-row passengers.
  • Level 2 ADAS (Advanced Driver Assistance): The facelift brings a more refined radar-camera suite. It includes:
    • Active Brake Assist: Which can now detect oncoming traffic while you’re making a turn.
    • Evasive Steering Assist: Helping you steer around an obstacle if a collision is imminent.
  • Pre-Safe Impulse Side: This is a bit of “magic.” If the car senses a side impact is unavoidable, it uses the seat bolsters to push you toward the center of the car, away from the door, milliseconds before the crash.

H2: Price & Variants: The 2026 India Landscape

Mercedes-Benz India has kept the lineup simple but high-spec for the facelift. Most buyers in India opt for the Diesel (450d), but the Petrol (450) is making a strong comeback for those who want absolute silence.

2026 Mercedes-Benz GLS India Price Table (April 2026)

VariantEngineEx-Showroom PriceOn-Road Price (Est.)
GLS 450 4MATIC3.0L Petrol MHEV₹ 1.32 Crore₹ 1.49 Crore
GLS 450d 4MATIC3.0L Diesel MHEV₹ 1.34 Crore₹ 1.55 Crore
GLS AMG Line (Top)Choice of Petrol/Diesel₹ 1.44 Crore₹ 1.66 Crore

*Note: For those who find even this “basic,” the Maybach GLS 600 sits at approximately ₹3.23 Crore, but for most industrialists, the standard GLS 450d is the “sweet spot” of value and luxury.

H2: Competitor Comparison: The Luxury Heavyweights

FeatureMercedes GLS 450dBMW X7 xDrive40dRange Rover (HSE)
Seating7 Full-Size Seats6 or 7 Seats5 or 7 Seats
Torque750 Nm700 Nm700 Nm
0-100 km/h6.4 Seconds5.9 Seconds6.1 Seconds
Tech VibeFuturistic / ScreensDriver-CentricMinimalist / Regal
Price (Base)₹ 1.32 Crore₹ 1.28 Crore₹ 2.31 Crore

H2: Pros and Cons: The Unfiltered Truth

Pros:

  • Unmatched Space: The only luxury SUV where the 3rd row is genuinely usable for adults.
  • Suspension Magic: E-Active Body Control makes Indian roads feel like silk.
  • Perceived Quality: The MBUX Superscreen and Nappa leather make it feel like a ₹2 Crore car.
  • Quietness: The insulation is so good you’ll find yourself whispering to your passengers.

Cons:

  • Size: It is a nightmare to park in old residential colonies or tight mall basements.
  • Tech Overload: The 3-screen dashboard can be distracting and has a steep learning curve.
  • Efficiency: Even with mild-hybrid tech, it’s a thirsty beast in city traffic.

H2: Who should buy this vehicle?

You should buy the 2026 Mercedes-Benz GLS facelift if you are an industrialist or a high-flying professional who travels with family or security. If you need a car that can effortlessly swallow six people and their luggage for a weekend trip to a hill station, and you want to arrive feeling as fresh as when you left, the GLS has no equal. It is for those who value “comfort above all else.”

H2: Who should avoid it?

Avoid this car if you plan to drive yourself in crowded city centers. Its length (over 5.2 meters) makes it cumbersome in Mumbai or Bangalore traffic. If you want a “sporty” SUV that feels like a big hatchback, the BMW X7 will serve your ego better. Also, if you only need seats for four, the S-Class sedan offers even better rear-seat luxury for a similar price.

H2: Expert Verdict: Still the King of Seven

The 2026 Mercedes-Benz GLS facelift review: Big in size, bigger on luxury concludes that the GLS remains the benchmark.

Mercedes hasn’t tried to make it a sports car; they’ve doubled down on making it the ultimate lounge on wheels. By integrating the Superscreen and the predictive suspension, they have moved the goalposts for the BMW X7. It is big, it is bold, and in 2026, it is more wholesome than ever. It isn’t just an SUV; it’s a statement that you have arrived—and you brought the whole family with you.

H2: FAQs: Your Questions Answered

Q1: Is the GLS better than the BMW X7?

If you need a genuine 7-seater, yes. The GLS has a more usable third row. However, if you want a more “engaging” drive, the BMW X7 feels sharper behind the wheel.

Q2: Can the GLS handle Indian floods?

It has a water-wading depth of 500 mm. While it can handle water-logged streets better than a sedan, it is still a complex electronic machine; we recommend avoiding deep water.

Q3: Does it have a spare tire?

Yes, it comes with a space-saver spare wheel tucked under the boot floor, which is a lifesaver on Indian highways where run-flats often fail.

Q4: Which is the better engine for India?

The 450d (Diesel) is the better all-rounder. The 750 Nm of torque makes overtakes effortless on the highway, and it offers much better range than the petrol.

Q5: Is the Superscreen standard?

In the 2026 Indian facelift, the MBUX Superscreen (3 screens) is standard on the AMG Line and an optional extra on the base 450 models.

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