BMW DTC P270C – Transmission Friction Element ‘C’ Temperature Too High
DTC P270C meaning on BMW
DTC P270C on a BMW indicates that the Transmission Friction Element ‘C’ Temperature is Too High. This fault code is specific to the transmission system and points to an issue with the temperature of the friction element ‘C’ within the transmission.
BMW DTC P270C symptoms
Symptoms of DTC P270C on a BMW may include harsh shifting, slipping transmission, delayed engagement when shifting gears, illuminated Check Engine Light, and in some cases, the transmission may go into a failsafe mode to prevent further damage.
BMW DTC P270C causes
The causes of DTC P270C on a BMW can vary, but common reasons include low transmission fluid level, dirty or contaminated transmission fluid, a faulty transmission temperature sensor, issues with the transmission control module, or internal transmission problems such as a malfunctioning solenoid or clutch.
BMW DTC P270C seriousness
DTC P270C should be taken seriously as it directly relates to the temperature of a critical component within the transmission system. Ignoring this fault code can lead to further damage to the transmission and potentially result in costly repairs if not addressed promptly.
How to diagnose DTC P270C on BMW
To diagnose DTC P270C on a BMW, a professional diagnostic scanner capable of reading transmission fault codes is required. The technician will perform a scan to retrieve the specific fault code and then proceed with further testing to pinpoint the exact cause of the high transmission friction element ‘C’ temperature.
- Check transmission fluid level and condition
- Inspect transmission temperature sensor
- Test transmission control module
- Conduct a thorough visual inspection of the transmission components
How to fix DTC P270C on BMW
Fixing DTC P270C on a BMW may involve the following steps:
- Ensure the transmission fluid level is correct and the fluid is clean
- Replace the transmission temperature sensor if faulty
- Address any issues with the transmission control module
- Repair or replace any damaged transmission components such as solenoids or clutches
- Perform a transmission flush and refill with fresh fluid
How to erase DTC P270C on BMW
Once the underlying issue causing DTC P270C on a BMW has been resolved, the fault code can be cleared using a diagnostic scanner. The technician can use the scanner to erase the code from the vehicle’s memory, and the Check Engine Light should turn off if the repair was successful.
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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