Autoterm diesel heating kit for Mercedes Sprinter (after 2017): thermal independence in both sizes

The Mercedes Sprinter is a benchmark for high-end van conversions. Robust, spacious, available in several lengths, it lends itself admirably to conversion into a living van — provided you add a worthy autonomous heating system. This Autoterm kit is designed specifically for Sprinters produced after 2017 (W907/910 generation), with a heater sized to the body: Air 2D (2 kW) for L1H1 and L2H2 formats, Air 4D (4 kW) for the larger L3H3 and L4H3 lengths.

In both cases, the heater is installed under the chassis in a protective mounting box bolted to the frame rail. The interior remains entirely available for the fit-out, with no visible floor cut-out or floor-level obstruction. For the L1H1/L2H2, warm air is distributed via a 60 mm duct through the included clamps and grilles. For the L3H3/L4H3, the 4 kW output of the Air 4D and its 90 mm duct effectively cover the most generous volumes, up to 168 m³/h of airflow. The Comfort Control panel manages the temperature up to 30 °C from inside the van.

Certified E2-10R and E2-122R, VASP compatible. 2-year warranty, extendable to 3 years with installation by an Autoterm-approved professional.

How do I identify my Sprinter size and check the generation?

Your Sprinter's generation is easy to identify: the W907/910 (post-2017) has a wider grille with a prominent Mercedes star bar and an MBUX interface. The model code is also visible on the manufacturer's plate affixed to the driver's door frame.

Contents of the Autoterm heating kit – Mercedes Sprinter (after 2017)

SKU 9.390_L1L2 (Air 2D – L1H1/L2H2):

• 1 Autoterm Air 2D diesel heater (2 kW) with its complete base kit
• 1 Comfort Control panel + extension cable
• 1 mounting box + adapted mounting support kit for Sprinter W907/910
• 2 m of ultra-resistant duct Ø 60 mm
• 2 clamps Ø 60 mm · 2 grilles Ø 60 mm · hose clips
• Fuel connection system adapted to the Sprinter

SKU 9.390_L3L4 (Air 4D – L3H3/L4H3):

• 1 Autoterm Air 4D diesel heater (4 kW) with its complete base kit
• 1 Comfort Control panel + extension cable
• 1 mounting box + adapted mounting support kit for Sprinter W907/910
• 2 m of ultra-resistant duct Ø 90 mm
• 1 air outlet adapter Ø 96-90 mm · 2 clamps Ø 90 mm · 2 grilles Ø 90 mm
• 1 deflector Ø 90 mm · 4 hose clips 90 mm
• Fuel connection system adapted to the Sprinter

How do I install the heating kit on a Mercedes Sprinter?

The mounting box bolts onto the Sprinter chassis frame rail. The fuel tap connects without drilling the tank. The electrical cables connect to the vehicle's electrical system or the fit-out battery bank. For SKU 9.390_L1L2, the 60 mm duct passes through the floor to distribute warm air. For SKU 9.390_L3L4 (Air 4D), the duct is Ø 90 mm — the Ø 96-90 mm air outlet adapter is included in the kit.

The installation manuals and certificates of conformity are available on the Autoterm website — useful to keep for the VASP file and during technical servicing.

Useful complementary products:

• Additional heating duct Ø 60 mm – for L3H3 and multi-outlet distribution
• 7 L or 13 L auxiliary fuel tank
• Additional clamps and grilles

A heating kit compatible with VASP certification

The Autoterm Air 2D and the Autoterm Air 4D are both certified E2-10R and E2-122R, the two European standards required to approve an autonomous heater as part of VASP certification. The certificates are provided by Autoterm and must be handed to the inspector at the time of the approval inspection.

Technical specifications of the Autoterm heating kit – Mercedes Sprinter (after 2017)

SKU 9.390_L1L2 – Autoterm Air 2D (L1H1/L2H2)

• Heating output: 0.8 kW (min.) to 2 kW (max.)
• Heated air volume: 34 to 86 m³/h
• Fuel consumption: 0.10 to 0.24 L/h
• Power consumption: 10 to 29 W
• Air duct diameter: Ø 60 mm

SKU 9.390_L3L4 – Autoterm Air 4D (L3H3/L4H3)

• Heating output: 1 kW (min.) to 4 kW (max.)
• Heated air volume: 70 to 168 m³/h
• Fuel consumption: 0.12 to 0.51 L/h
• Power consumption: 10 to 57 W
• Air duct diameter: Ø 96 mm (Ø 90 mm adapter included)

Specifications common to both kits

• Fuel: Diesel
• Voltage: 12 V
• Exhaust diameter: Ø 24 mm
• Maximum operating altitude: up to 4,200 m
• Control panel: Comfort Control (included)
• Mounting: External under chassis (mounting box included)
• Compatible vehicles SKU 9.390_L1L2: Mercedes Sprinter L1H1 / L2H2, from 2017 (W907/W910)
• Compatible vehicles SKU 9.390_L3L4: Mercedes Sprinter L3H3 / L4H3, from 2017 (W907/W910)
• Certification: E2-10R / E2-122R (VASP compatible)
• Warranty: 2 years (3 years with installation by an approved installer)

Complementary products for your Sprinter fit-out

• Autoterm Air 2D heater only – for the L1H1/L2H2
• Autoterm Air 4D heater only – for the L3H3/L4H3
• Heating duct Ø 60 mm – for the L1H1/L2H2
• Auxiliary fuel tank
• Van heaters category