P0748Bmw I4Years: 1996 - 2026
Pressure Control Solenoid A Electrical
Reviewed by ASE Certified Technician
What does this mean?
Code P0748 indicates a problem with pressure control solenoid A in the transmission.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Bmw I4 models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
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Common Causes
Faulty transmission pressure control solenoid
Low, dirty, or burnt transmission fluid
Worn or faulty transmission valve body
Damaged, chafed, or broken wiring harness
Symptoms to Watch For
- Check Engine Light is illuminated
- Hard or harsh gear shifting
- Transmission slipping between gears
- Delayed gear engagement
- Transmission stuck in one gear