This guide is customized for your 2018 BMW X5
P0806: P0806: Transmission Control Module (TCM) Range/Performance Problem
on 2018 BMW X5
Important for 2018 BMW X5 Owners
Before starting repairs, verify which engine your 2018 BMW X5 has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does P0806 Mean on 2018 BMW X5?
Symptoms
- • Transmission hesitation
- • slipping
- • or difficulty shifting gears
- • unusual noises
- • or the transmission warning light on the dashboard.
Common Causes
- • Faulty transmission solenoid
- • faulty transmission sensor
- • low transmission fluid level
- • clogged transmission filter
- • or a faulty transmission control module.
How to Fix P0806 on 2018 BMW X5
1. Check transmission fluid level and condition. 2. Scan for any other trouble codes. 3. Test transmission solenoids and sensors. 4. Replace faulty solenoids or sensors. 5. Check and clean the transmission filter. 6. Update the transmission control module's software if necessary.
Need Maintenance Info for Your X5?
Get oil capacity, filter specs, and torque settings for your specific 2018 BMW X5.
View 2018 BMW X5 SpecsParts for 2018 BMW X5
Essential Tool
Related Diagnostic Codes
Other codes that may appear with P0806
P0804: Transmission Control Module (TCM) Range/Performance Problem
P0805: Transmission Control Module (TCM) Range/Performance Problem
P0807: Transmission Control Module (TCM) Range/Performance Issue
P0808: Transmission Control Module (TCM) Range/Performance Issue
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system