← View Generic P0734 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
P0734: P0734: Transmission Control System Malfunction
on 2018 BMW X5
Fix Cost
$200 - $1000
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2018 BMW
X5
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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 P0734 Mean on 2018 BMW X5?
The transmission control system is malfunctioning, causing issues with gear shifting and transmission operation.
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Symptoms
- • Difficulty shifting gears
- • slipping or hesitation between gears
- • transmission warning light on
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Common Causes
- • Faulty transmission control module
- • faulty transmission solenoids
- • low transmission fluid level
- • clogged transmission filter
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How to Fix P0734 on 2018 BMW X5
1. Check transmission fluid level and top off if necessary. 2. Scan for trouble codes and clear them. 3. Replace faulty transmission solenoids. 4. Replace transmission control module if necessary.
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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
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Related Diagnostic Codes
Other codes that may appear with P0734
P0732
Sequential Code
P0732: Transmission Control System Malfunction
Medium
P0733
Sequential Code
P0733: Transmission Control System Malfunction
Medium
P0735
Sequential Code
P0735: Transmission Control System Malfunction
Medium
P0736
Sequential Code
P0736: Transmission Control System Malfunction
Medium
💡 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