Description
This is the original Audi rear electric auxiliary heater for the Audi A8 / S8 D3 (4E). It is the electric heater element built into the rear lower air duct, supplied under OEM number 4E0 819 013 with the control electronics 4E0 910 013 (GKR 9140010461).
The unit heats the air going to the rear footwell and rear cabin, giving faster warm-up – especially on diesel models, where it works as an additional heater (Zuheizer / Zusatzheizung) while the engine is still cold.
Common signs of a faulty unit: no warm air at the rear, slow cabin warm-up on cold starts, or a heater-related fault stored in the climate control system.
OEM: 4E0819013 (4E0 819 013) · 4E0910013 (4E0 910 013) · GKR 9140010461 · later version 4E0819013A
Fits: Audi A8 / S8 D3 (4E), 2002–2010
Used, cleaned, inspected and tested. Please match both part numbers with your original before ordering. Professional installation is recommended.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/









