Airtronic M2 D4 Diesel Heater w/Installation Kit & EasyStart Pro Controller (no fuel pick-up tube)


Espar’s AIRTRONIC 4 Air Heater is designed for applications such as Small cargo, Marine, Large Sleepers and Cabs. This Air Heater cycles quietly through four heat levels to maintain a desired comfort setting without idling your engine.

Airtronic S2/M2 – our new Airtronic family

The new Airtronic family is the logical further development of the successful Eberspächer air heater. With its robust components and the latest control system, the Airtronic now features both functional expansions and a longer service life.

The new Airtronic is equipped with automatic altitude adjustment as standard. A new brushless motor has extended the service life to 5,000 hours. This new motor, a modern control system and the use of the latest metering pump technology also improve the acoustics. Furthermore, the new Airtronic uses the pioneering Eberspächer CAN bus technology.

2 in stock

airtronic s2 d2 diesel heater winstallation kit and easystart pro controller 2
Airtronic M2 D4 Diesel Heater w/Installation Kit & EasyStart Pro Controller (no fuel pick-up tube) $1,991.01

Warranty:  2 Years

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Alternate Part Numbers:  20.2827.20.0400

Voltage:  12V


  • Interfaces: CAN, LIN (only 12 V), S+
  • Service life 5,000 h
  • Brushless motor
  • Use of the latest EasyStart Pro and EasyStart Web control units
  • Diagnostics and parameter assignment via EasyScan
  • Starting capability down to -46 °C
  • Stepless heating performance control
  • Noise emissions optimized
  • Use of acoustically improved metering pump
  • Integrated altitude sensor:
    – Automatic altitude adjustment up to 3,000 m
    – Optimized combustion

Additional features:

  • Universal installation kit for all versions
  • Air scoops provided separately to the installation kit
  • Metering pump included in delivery with Airtronic S2/M2
  • Identical to Airtronic 1:
    – installation positions
    – repair and spare parts
    – installation space and mechanical interfaces (air, exhaust and combustion air)
  • Heating-air connection diameters:
    – 2 kW: Ø 60 mm and Ø 75 mm
    – 4 kW: Ø 75 mm and Ø 90 mm
  • ADR compatibility of the 24 V versions

EasyStart Pro – the intelligent permanently installed control unit

The new, permanently installed EasyStart Pro control unit is based on Eberspächer CAN bus communication and is designed for the new Hydronic S3 Economy / Hydronic Commercial and Airtronic S2 / M2 heater generations. In addition to a timer function, the new control unit is equipped with many new product features such as.


  • Intuitive navigation with control knob
  • Integrated temperature sensor
  • Up to two heaters can be operated separately, or two identical heaters (Airtronic or Hydronic) can be operated as a group
  • Simple diagnostics function in text form for users
  • Detailed diagnostics function for the workshop
  • Integrated residual-heat function for Hydronic heaters: efficient heating mode by using the engine’s residual heat
  • Altitude mode can be activated manually above 1,500 m (Hydronic S3 Economy)
  • Easy-to-read system status display (home screen)
  • Timer function: up to three programming locations available
  • Display and LED color ring for clear status detection in all operating conditions
  • Various installation versions possible (surface mounting with concealed or visible cable routing, flush mounting)
  • Mounting-optimized ribbon cable
  • Endless heater operating time can be set (Airtronic and Hydronic)
  • Menu navigation available in 25 other languages in addition to English and German (from Q4/2018 via EasyScan)

Additional features:

  • Setup assistant simplifies installation
  • Maintenance interval setting possible
  • Immediate heating via the long-press function
  • Integration of an additional CAN control unit possible: EasyStart Web (from Q4/2018) or additional EasyStart Pro
  • Permanent display illumination possible
  • ADR compliant
  • Easy diagnostics via EasyScan; no disassembly required

DISCLAIMER for International Orders.

Duties and Taxes: Import duties, taxes, and brokerage fees are not included in the product price or shipping and handling cost and it will be collected upon delivery from the carriers for certain packages.

Additional information

Weight 25 lbs
Dimensions 28 × 17 × 9 in


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