Optimize Comfort with the BMW i3 Electric Auxiliary Heater

Published by Drust February 3, 2026

In colder months, maintaining cabin warmth without draining the battery is a priority—especially for electric vehicles like the BMW i3. The BMW i3 electric auxiliary heater delivers targeted heat efficiently, preserving range while keeping passengers comfortable.

2014 BMW i3 60Ah Rex Electric auxiliary heater - 64129873690 - Genuine ...

2014 BMW i3 60Ah Rex Electric auxiliary heater - 64129873690 - Genuine ...

Source: shop.bmw.ca

The BMW i3 Electric Auxiliary Heater: How It Works

Designed to complement the i3’s efficient electric powertrain, this auxiliary heating system uses advanced heat pump technology to deliver quick, consistent warmth. Unlike traditional resistive heaters, it minimizes energy use by drawing heat from the environment, maximizing range and efficiency. Integrated smart controls allow seamless integration with the i3’s climate system, ensuring responsive and precise temperature management.

BMW I3 I01 Hybrid Electric Auxiliary Electrical Coolant Water Heater ...

BMW I3 I01 Hybrid Electric Auxiliary Electrical Coolant Water Heater ...

Source: picclick.co.uk

Maximizing Range and Efficiency

The auxiliary heater operates in harmony with the i3’s battery management system, drawing power only when needed and adjusting output based on cabin temperature and external conditions. This intelligent approach extends driving range significantly compared to conventional heating, making it ideal for daily commutes and long trips in winter without sacrificing performance.

BMW I3 I01 Hybrid Electric Auxiliary Electrical Coolant Water Heater ...

BMW I3 I01 Hybrid Electric Auxiliary Electrical Coolant Water Heater ...

Source: picclick.co.uk

Enhanced Comfort and Convenience

Beyond energy savings, the BMW i3 electric auxiliary heater ensures immediate warmth on chilly mornings, reducing reliance on pre-heating the entire cabin. Its quiet operation and fast response deliver a cozy, personalized experience. With easy integration into the i3’s digital dashboard, users can monitor and control heating settings via the infotainment system or mobile app.

Genuine BMW - 64125A66204 - ELECTRIC AUXILIARY HEATER (64-12-5-A66-204)

Genuine BMW - 64125A66204 - ELECTRIC AUXILIARY HEATER (64-12-5-A66-204)

Source: www.ecstuning.com

The BMW i3 electric auxiliary heater is a smart, efficient solution that elevates winter comfort without compromising range. By preserving energy and enhancing cabin warmth, it proves that electric vehicles can deliver luxury performance in any season. Upgrade your i3 today and experience heating that’s both intelligent and uncompromising.

Original BMW Electric auxiliary heater (64125A66203) | HUBAUER-Shop.de

Original BMW Electric auxiliary heater (64125A66203) | HUBAUER-Shop.de

Source: www.hubauer-shop.de

With buyers increasingly turning to the pre-owned market for their i3 as the new-model market steadily dries up, one thing people will be looking out for is the BMW i3 "auxiliary cabin heating system." It's a longer name for something that we more often simply call a heat pump. I am looking to buy a 120 Ah I3. I live in the UK.

2014 BMW i3 60Ah Rex Electric auxiliary heater - 64129873690 - Genuine ...

2014 BMW i3 60Ah Rex Electric auxiliary heater - 64129873690 - Genuine ...

Source: shop.bmw.ca

I am aware that the auxiliary cabin heating will heat up the vehicle before setting off (whilst connected to your home charging unit). My BMW garage says that this added extra will improve battery efficiency by up to 30%. The sales assistant.

BMW I3 I01 Hybrid Electric Auxiliary Electrical Coolant Water Heater ...

BMW I3 I01 Hybrid Electric Auxiliary Electrical Coolant Water Heater ...

Source: picclick.co.uk

BMWPartsDeal.com offers genuine Electric Auxiliary Heater With Pump for 2020 BMW i3 Base (I01) with great price and fast delivery. 2014-2021 BMW I3 Electric Auxiliary Heater Control Unit 40K Miles 9363105 OEM City Motors Chicago (8874) 99.8% positive. Electric auxiliary heater with pump for BMW i3 120Ah - Order your original BMW car spares with our part diagrams ️ Search by model or part number ️ Honda parts with manufacturer warranty.

New & Original BMW i3 I01 Electric Flow Heater | eBay

New & Original BMW i3 I01 Electric Flow Heater | eBay

Source: www.ebay.com

Electric auxiliary heater Part Number: 64129873690 Supersession (s): 64-12-9-873-690; 64126827186; 64129490556; 64129893003; 64219310499; 64219335239; 64219363105 Fits i3 (2014 - 2021) Diagrams and Kits Ask a question What This Fits Product Types Services Electric auxiliary heater with pump. The electric resistance cabin heater has failed in a few i3's. If you buy a 2020 U.S.

BEV, it could have the heat pump option which would provide heat above -10 ºC/14 ºF with the electric resistance cabin heater providing heat at lower temperatures. Electric auxiliary heater. BMW i3.

Genuine BMW Part - 64129873690. Ships from NW BMW Parts, Fife WA. Only Original BMW i3 Heater and Air Conditioning from an authorised BMW Centre maintain the exceptional performance of your BMW.

Competitive pricing and expert care mean your BMW i3 keeps performing up to your exacting standards. 2014-2021 BMW I3 Electric Auxiliary Heater Control Unit 40K Miles 9363105 OEM $229.50 previous price$255.00.