Mercedes-Benz EQB Heater Matrix Replacement Parts

No — the EQB is a fully electric vehicle with no internal combustion engine, which means it has no coolant-fed heater matrix of the kind found in petrol or diesel cars. Electric vehicles use a heat pump or electric PTC (positive temperature coefficient) heater element to warm the cabin instead. If your heating system has failed, you are most likely looking for a heat pump component, PTC heater element, or associated valve rather than a heater matrix. A Mercedes specialist or breaker who stocks EQB parts will be able to point you toward the correct component against your registration.

Because the EQB has no combustion engine there is no heater matrix in the system, so the warm air in the cabin comes from either the heat pump assembly or a PTC electric heater element fitted in the HVAC unit. Faults are often traced to the heat pump compressor, refrigerant circuit components, or the PTC heater itself. Describe your symptoms to a Mercedes-specialist breaker and give them your full registration so they can identify the exact part number for your build — EQB heating systems can vary between AMB and PHEV-adjacent configurations.

No heater matrix will fit an EQB because the car was never built with one — there is no provision in the EQB's HVAC system to accept a coolant-fed matrix. Fitting a heater matrix from any other Mercedes model is not applicable here. If you are sourcing a used heating component for your EQB, focus on heat pump or PTC heater parts specific to the EQB's generation and confirm compatibility with the breaker using your registration.

The EQB (X243) was introduced in the UK from 2022 onwards as a single generation to date, and trim levels such as Sport, AMG Line, AMG Line Premium, and AMG Line Premium Plus do not change the fundamental HVAC architecture — there is no heater matrix on any of them. However, trim level and optional equipment packages can affect specific HVAC components such as the heat pump, which was available as an option on some variants rather than standard across all trims. Always confirm the exact part needed against your registration with the breaker, as build-option differences can affect compatibility.

It is very unlikely to be correct — the EQB is a battery-electric vehicle and has never been fitted with a heater matrix on any variant sold in the UK. It is possible there has been a misidentification, either of the part or of the vehicle. We would strongly recommend querying this with the breaker, clarifying that your vehicle is the fully electric EQB rather than a combustion-engined equivalent such as the GLB, and asking them to identify the correct heating component against your registration number.