In electric and hybrid vehicles, lithium-ion batteries are almost exclusively used. These batteries need to be kept within their ideal temperature range to perform at their best.
When the temperature deviates, both performance and lifespan decrease. To maintain this ideal environment, batteries are equipped with a cooling system that requires regular maintenance.
As a fluid management specialist, MAHLE Aftermarket has developed a product specifically for the e-mobility market: E-CARE Fluid. This device can also be used with traditional combustion engines, making it a worthwhile investment.
Electric vehicles primarily rely on two cooling methods: air and liquid cooling. Liquid cooling is the more efficient option, as it uses coolant to regulate operating temperatures. The coolant circulates through hoses, cooling plates, and a radiator or heat exchanger, much like it would in a combustion engine.
There are many reasons to drain the coolant: while each manufacturer has its own strategy, many require periodic coolant changes. Additionally, whenever repairs or battery removals are needed, the cooling system must be emptied and refilled.
Leak testing is also becoming standard maintenance for EVs, much as it has been for combustion engines.
E-CARE Fluid includes an up-to-date database of nearly all EV makes and models, providing information on coolant type, quantity, and the appropriate adapter. MAHLE will offer an accessory kit with around 20 different adapters, covering a wide range of vehicles across all powertrain types. The device features two tanks: one to collect used coolant for potential reuse and another that can mix and refill new coolant automatically when needed. Depending on the vehicle, you can rely on the device’s integrated database for precise, automated filling and process adjustments, or opt to work manually, inputting as much or as little information as necessary.