Hello, I need High Altitude control unit for an Eberspächer D5WS that can is compatible with Westfalia central unit. Is it possible?

Question

Hello, I need High Altitude control unit for an Eberspächer D5WS that can is compatible with Westfalia central unit. Is it possible?

This question is related to Eberspacher Hydronic D5W SC water heater ECU 12v control | 225201040011 | 225201019002.

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Answers (1)

Answered by Butler Technik's David Butler
Posted 16th February, 2026 at 10:34 by David Butler

thank you for your enquiry. If your D5WS Heater is original OEM Merc, VW then it may not be possible to retro-fit a High Altitude kit. Could you please tell us the build year of your heater? Or perhaps email a photo of the heater dataplate to sales@butlertechnik.com

This will allow us toconfirm compatibility of the High Altitude kit with your heater ECU

thank you

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