BMW DTC P073A – Stuck in Gear 5
DTC P073A meaning on BMW
The DTC P073A code on a BMW indicates that the transmission is stuck in gear 5. This means that the transmission control module (TCM) has detected a problem with the gear ratio in the fifth gear, which can lead to drivability issues and potential damage to the transmission if not addressed promptly.
BMW DTC P073A symptoms
Symptoms of a BMW with DTC P073A may include harsh shifting, delayed engagement when shifting into gear, slipping in fifth gear, decreased fuel efficiency, and the transmission staying in fifth gear regardless of driving conditions.
BMW DTC P073A causes
The most common causes of DTC P073A on a BMW include low transmission fluid levels, a faulty transmission solenoid, a malfunctioning TCM, a worn clutch or clutch pack, or internal transmission damage.
BMW DTC P073A seriousness
Ignoring DTC P073A on a BMW can lead to further transmission damage and potentially leave the vehicle inoperable. It is crucial to address this issue promptly to prevent costly repairs and ensure the safety and drivability of the vehicle.
How to diagnose DTC P073A on BMW
To diagnose DTC P073A on a BMW, a mechanic will typically perform a thorough inspection of the transmission system, check the transmission fluid level and condition, conduct a scan of the TCM for fault codes, and perform a road test to observe the symptoms firsthand.
- Check transmission fluid level and condition
- Scan TCM for fault codes
- Perform a road test
How to fix DTC P073A on BMW
Fixing DTC P073A on a BMW may involve topping up or replacing the transmission fluid, replacing a faulty transmission solenoid, repairing or replacing the TCM, rebuilding the transmission if internal damage is found, or adjusting the clutch or clutch pack as necessary.
- Top up or replace transmission fluid
- Replace faulty transmission solenoid
- Repair or replace TCM
- Rebuild transmission if necessary
- Adjust clutch or clutch pack
How to erase DTC P073A on BMW
Once the underlying issue causing DTC P073A on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will reset the TCM and turn off the check engine light, allowing the vehicle to operate normally without the error code present.
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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