BMW DTC P105D – Cold Start Intake Air Temperature Too Low (Bank 1)
DTC P105D meaning on BMW
The DTC P105D code on a BMW indicates that the cold start intake air temperature is too low in Bank 1. This means that the temperature of the air entering the engine during cold starts is below the expected threshold, which can affect the engine’s performance and emissions.
BMW DTC P105D symptoms
Symptoms of the DTC P105D code on a BMW may include rough idling during cold starts, decreased engine performance, reduced fuel efficiency, and potentially an illuminated check engine light on the dashboard.
BMW DTC P105D causes
The causes of the DTC P105D code on a BMW can vary, but common reasons include a faulty intake air temperature sensor, issues with the intake air temperature sensor circuit, or problems with the engine’s cold start system.
BMW DTC P105D seriousness
While the DTC P105D code may not cause immediate harm to the vehicle, it can lead to decreased engine performance and increased emissions if left unresolved. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P105D on BMW
To diagnose the DTC P105D code on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer system. They would then inspect the intake air temperature sensor, check the sensor’s wiring and connections, and perform tests to determine the root cause of the issue.
How to fix DTC P105D on BMW
Fixing the DTC P105D code on a BMW may involve replacing the faulty intake air temperature sensor, repairing any damaged wiring or connections, or addressing issues with the cold start system. It is recommended to follow the manufacturer’s repair procedures and use quality replacement parts to ensure proper functionality.
How to erase DTC P105D on BMW
To erase the DTC P105D code on a BMW, a mechanic can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer system. Once the issue has been addressed and fixed, the code can be erased to reset the check engine light and ensure that the problem has been resolved.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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