Next-Generation Power System: GRECH POWER™
This year’s most exciting update is the debut of GRECH POWER™, a complete reengineering of the Terreno-ion’s power infrastructure. Highlights include:
- Lithionics 51V Battery System with 16,896-watt hours and rapid charging.
- 3,000W Victron Inverter for smooth, silent energy conversion and remote monitoring.
- ARCO Zeus Alternator & Regulator, now Bluetooth-capable and more efficient.
- Garmin SERV+™ Control System with Timberline integration and full diagnostic support.
- Starlink Roam satellite internet—pre-installed and standard across all 2026 models.
- Inline chassis battery charger, roof-mounted solar, and an upgraded Fusion® audio system.
Whether you’re off-grid or parked at a campground, this new system offers improved reliability, expanded power capacity, and smart connectivity at your fingertips.
Comfortable Living, On and Off the Grid
This Class B motorhome includes a fully enclosed wet bath with a window and privacy shade, a molded sink and vanity, a ceramic toilet with macerator, and a retractable clothesline. It’s a private space intended for convenience and daily use.
Heating and cooling are handled by the Timberline diesel-powered hot water and heating system and a 15,000 BTU air conditioner with heat pump. A power lift vent fan with a rain sensor helps regulate airflow, and tank monitors keep you informed on water usage.
Fresh (26 gallons), gray (27 gallons), and black (13 gallons) tanks are all 12V heated, making this coach capable of handling year-round adventures.
Safety and Performance from Mercedes-Benz
Under the hood, the Terreno-ion is powered by a 4-cylinder diesel engine with 211 horsepower and 332 lb-ft of torque, paired with a 9-speed 9G-TRONIC transmission. Mercedes-Benz safety technologies include:
- DISTRONIC Active Distance Assist
- Lane-Keeping, Attention Assist, and Brake Assist
- Blind Spot Assist and Parking Assist
- LED headlamps and a wet wiper system
- Swiveling, heated, power front seats
- MBUX multimedia with a 10.25″ touchscreen
All this, combined with Grech’s polished aluminum wheels, custom fiberglass body kit, and air suspension, creates a driving experience that’s both smooth and secure.
Find a 2026 Terreno RV for Sale at Mountain Luxe RV
If you’re looking for a balance of refined comfort, efficient design, and AWD performance, at Mountain Luxe RV, you can find a Terreno RV for sale that exceeds expectations. With both floor plans and the GRECH POWER™ standard, this model is ready to meet the demands of modern RV life.
To schedule a tour or request pricing, contact us directly by phone at (877) 658-9378 or e-mail: info@mountainluxerv.com. Our team is here to help you find the coach that fits your road ahead—wherever it leads.
And don’t forget to watch our latest videos on the Mountain Luxe RV YouTube Channel.
