September 2026 New Heater Core: Mercedes-Benz GLA250
Heater-core repairs can involve significant dashboard disassembly, so correct fitment matters before a vehicle enters the service bay. A unit that appears similar may still differ in tube layout, dimensions, connections, or application details.
Our September 2026 North America release adds one new heater core Part # for the Mercedes-Benz GLA250 2.0T. The source sheet lists coverage beginning with the 2025 model year and provides two OE references for verification.
New Part at a Glance
| Category / Part # | Vehicle Fitment | OE Reference | Fitment Check |
|---|---|---|---|
|
Heater Core 1.18.13602 |
2025– Mercedes-Benz GLA250 2.0T |
2478308100 A2478308100 |
Confirm exact model year, 2.0T application, OE number, tube layout, and original unit before ordering. |
Heater Core Coverage for the Mercedes-Benz GLA250 2.0T
Part # 1.18.13602 adds heater-core coverage for the Mercedes-Benz GLA250 with the 2.0T application. The release sheet lists the year range as 2025– and provides OE 2478308100 and A2478308100 as lookup references.
Because the source uses an open-ended year range, buyers and service advisors should confirm the exact model year rather than assuming coverage for every later vehicle. Compare the OE number and the original heater core’s connections and tube orientation before installation.
Why Verification Matters on a Heater-Core Repair
The heater core transfers heat from engine coolant to the cabin air stream. Possible warning signs include weak cabin heat, a sweet coolant odor, windshield fogging, dampness near the passenger-side floor, or unexplained coolant loss. These symptoms are not proof of heater-core failure on their own; cooling-system leaks, air trapped in the system, blend-door faults, thermostat issues, or restricted coolant flow can produce similar complaints.
For repair shops, diagnosis before disassembly helps avoid unnecessary labor. Pressure-test the cooling system when appropriate, inspect accessible hoses and connections, and verify that the heater core is the confirmed source of the problem.
Fitment reminder: Confirm the vehicle year, model, 2.0T engine application, Part #, OE reference, and original component configuration before ordering or installation.
Need Help Confirming the Right Part?
Send the Alpart Auto Parts team the vehicle year, model, engine details, and the OE number from the original component. These details help parts buyers, repair shops, and vehicle owners narrow the correct application before the repair begins.