2022-2024 Audi Start/Stop System Not Working TSB

Audi Technical Service Bulletin 00 22 58 2045316/6, issued on August 19, 2022, offers workshop information regarding the Start/Stop system. This bulletin supersedes an earlier TSB, Group 00 number 20-42, dated October 7, 2020, incorporating updates for newer model years and revised technical information. The TSB is applicable to all Audi vehicles from model years 2013-2024 equipped with the Start/Stop system.

This informational bulletin helps technicians and owners understand the complex conditions that govern the Start/Stop system's operation, clarifying why an Audi Start/Stop system not working as anticipated might not always indicate a fault.

Symptoms of an Audi Start/Stop System Malfunction

Owners may notice the following behaviors that lead them to believe their Audi Start/Stop system not working correctly:

• The Start/Stop system does not shut down when the driver thinks it should.
• The engine is not automatically switched off or on.
• The engine restarts from Start/Stop for reasons unknown to the driver.

Understanding the Audi Start/Stop System

The Start/Stop system is designed to automatically stop and restart the engine to improve fuel efficiency and reduce emissions. However, its operation is subject to numerous conditions. The engine will only automatically switch off if specific criteria are met:

• The engine has reached its minimum operating temperature.
• The vehicle has exceeded 10 km/h (6 mph) or 3 km/h (2 mph for manual transmissions) after ignition and has come to a complete standstill.
• The battery's charge level is sufficient to ensure the engine can be restarted.
• The defrost function is deactivated.
• The driver is wearing a seat belt.
• The driver's door and the hood are closed.
• The engine speed is below 1,200 rpm.
• The diesel particulate filter (DPF) is not in the regeneration process.
• The target HVAC temperature has been reached.
• The road incline is under 10°.
• The steering wheel is not turned more than 270° (3/4) when the vehicle comes to a standstill.
• For automatic vehicles, the brake pedal must be pressed and held firmly.
• For manual vehicles, no gear is selected, and the clutch is not pressed.

Conversely, the engine will not automatically switch off under certain conditions, even if the driver expects it to. These include when a trailer is electrically connected, the system has been manually deactivated, the brake pedal is not pressed hard enough, the parking aid is switched on, or the interior temperature has not yet been reached. A low battery charge or excessive electrical consumers can also prevent the system from activating.

Furthermore, the engine may automatically restart without driver involvement if the vehicle moves above 3 km/h (2 mph), the selector lever is in