BMW DTC P27D2 – Pressure Control Solenoid ‘S’ Stuck On
DTC P27D2 meaning on BMW
DTC P27D2 indicates that the Pressure Control Solenoid ‘S’ is stuck on in a BMW vehicle. The solenoid is responsible for regulating hydraulic pressure within the transmission. When it gets stuck in the on position, it can lead to various transmission issues.
BMW DTC P27D2 symptoms
Symptoms of DTC P27D2 in a BMW may include harsh shifting, delayed shifting, transmission slipping, decreased fuel efficiency, and in some cases, the transmission may go into a limp mode where it operates in a single gear.
BMW DTC P27D2 causes
The common causes of DTC P27D2 in a BMW include a faulty pressure control solenoid ‘S’, wiring issues, low transmission fluid level, contaminated transmission fluid, or internal transmission problems.
BMW DTC P27D2 seriousness
Ignoring DTC P27D2 in a BMW can lead to further transmission damage and potentially leave you stranded on the road. It is important to address this issue promptly to prevent more severe and costly repairs.
How to diagnose DTC P27D2 on BMW
To diagnose DTC P27D2 on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes from the vehicle’s transmission control module. They would then inspect the pressure control solenoid ‘S’, check the wiring for any damage, and ensure the transmission fluid level and condition are within specifications.
How to fix DTC P27D2 on BMW
Fixing DTC P27D2 on a BMW usually involves replacing the pressure control solenoid ‘S’ if it is found to be faulty. Additionally, any damaged wiring should be repaired, and the transmission fluid should be flushed and replaced if it is contaminated. In some cases, internal transmission repairs may be necessary.
How to erase DTC P27D2 on BMW
Once the underlying issue causing DTC P27D2 has been fixed, the fault codes can be cleared using a diagnostic scanner. This will erase the DTC P27D2 code from the vehicle’s memory and reset the transmission control module. It is important to ensure that the repair has been successful before clearing the fault codes.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.