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Service bulletins for the 2020 Audi Q5

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1040 on file from NHTSA, as of 2026-10-19.

About P0C43 on the 2020 Audi Q5: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P0C43 are shown. Show all

Bulletins, newest first
Dealer 80C92020-10-06. Service bulletin. ENGINE AND ENGINE COOLING. Affected vehicles software configuration for monitoring a functional temperature sensor and coolant switching valve was based on known good and 'bad' temperature differentials. The 'bad' temperature differentials did not take into account certain normal variables. This condition could lead to a MIL with the following erroneous faults stored in the thermal management control module (00C5): P0C4300: Hybrid/EV Battery Pack Coolant Temperature Sensor "A" Circuit Range/Performance P0CE100: Hybrid/EV Battery Pack Coolant Control Valve "A" Stuck On
Bulletin 80C92020-10-06. Service bulletin. ENGINE AND ENGINE COOLING. Affected vehicles software configuration for monitoring a functional temperature sensor and coolant switching valve was based on known good and 'bad' temperature differentials. The 'bad' temperature differentials did not take into account certain normal variables. This condition could lead to a MIL with the following erroneous faults stored in the thermal management control module (00C5): P0C4300: Hybrid/EV Battery Pack Coolant Temperature Sensor "A" Circuit Range/Performance P0CE100: Hybrid/EV Battery Pack Coolant Control Valve "A" Stuck On
A1920072060218_22020-10-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT. This bulletin contains a software update for DTC P0C4300 or P0CE100.
A1920052060218_12020-08-06. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin contains a software update for DTC P0C4300 or P0CE100.
A1920032059530_12020-06-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. This bulletin contains instructions for creating a PSS for when DTC P0C4300 and/or P0CE100 is stored in the thermal management control module.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.