Second Hand Mercedes-Benz Citan Heater Motor

Yes, the Citan has a heater blower motor (also called a blower fan or heater fan motor) that drives air through the cabin heating and ventilation system, and it is fitted across all engine and trim variants of the van. It sits behind the dashboard on the nearside and is responsible for pushing air through the vents whether you are using heat, ventilation, or air conditioning. If your heater has stopped blowing air altogether, or only works on certain speeds, the heater motor or its resistor pack is almost certainly the cause.

The first-generation Citan ran from 2012 to 2021 as the W415, and heater motors within this generation are generally considered the same part across that production run since the dashboard and HVAC architecture did not change fundamentally. That said, confirm the exact part number with the breaker against your registration, as minor production changes can sometimes affect connector types or mounting details. The second-generation Citan (W420, 2022 onwards) is a completely different platform and its heater motor will not interchange with the W415.

Trim level does not affect which heater motor is fitted to the Citan — the blower unit is the same part regardless of whether your van is a base worker-spec model or a higher-specification variant. The only caveat worth checking is whether your van has air conditioning, as some Citans were supplied without it, and the HVAC control unit differs; however, the blower motor itself is the same. You may find cosmetic differences around the dashboard trim when removing the old unit, but these do not affect the motor itself.

No — the W420 Citan launched in 2022 is built on a completely different platform to the earlier W415 and the two generations do not share HVAC components. The heater motor mounting, connector, and housing are not compatible across this generational boundary, so always make sure the breaker is supplying a part from a W415 if your van is a pre-2022 model. Confirm the part against your registration with the breaker to be certain.

If the fan works on some speed settings but not others, the most likely cause is the heater resistor pack rather than the motor itself — the resistor controls the different fan speeds and is a common failure item on the Citan. The motor itself tends to fail completely or become very noisy when it goes. It is worth confirming which component has failed before ordering from a breaker, as they are separate parts and priced accordingly.

The W415 Citan was sold in both panel van and Tourer (people-carrier) body styles in the UK, and in most cases the heater motor is shared between them as the dashboard and HVAC system are fundamentally the same. However, confirm with the breaker against your specific registration, as rear passenger heating arrangements in the Tourer could introduce additional components that differ from the standard van setup.