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Code P1472

Quick reference

P1472 at a glance

Plain-language meaning
This code means there's a problem with the car's system that checks for leaks in the fuel tank. It's like a sensor isn't working right, so the car can't tell if there's a leak.
Urgency
Moderate – While not immediately dangerous, it can lead to emissions test failure and potential fuel leaks.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
Multimeter, OBD-II scanner, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means there's a problem with the car's system that checks for leaks in the fuel tank. It's like a sensor isn't working right, so the car can't tell if there's a leak.

Explanation

The P1472 code indicates an issue with the electrical circuit that controls the solenoid responsible for testing the fuel tank's integrity.

Technical description

The Diagnostic Module Tank Leakage (DM TL) system uses a solenoid to create pressure in the fuel tank to check for leaks. This code is triggered when the control circuit for this solenoid has an electrical fault, preventing the system from functioning correctly.

Symptoms

• Check Engine Light is on

• Failed emissions test

• Possible fuel odor

Common Causes

• Faulty DM TL solenoid

• Damaged wiring or connectors

• Blown fuse in the circuit

Glossary

DM TL: Diagnostic Module Tank Leakage

Solenoid: A device that converts electrical energy into mechanical movement

Diagnosis steps

• Inspect the wiring and connectors for damage.

• Test the DM TL solenoid for proper operation.

• Check the fuse related to the DM TL circuit.

Repair procedures

• Replace the DM TL solenoid if faulty.

• Repair or replace damaged wiring or connectors.

• Replace the blown fuse.

Tools required

• Multimeter

• OBD-II scanner

• Basic hand tools

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• BMW 3 Series

• BMW 5 Series

• BMW X5

Preventive measures

• Regularly inspect wiring for damage.

• Ensure connectors are properly seated.

• Perform routine maintenance checks.

Error code type

Sensor Issue

User experience recommendations

• Have a professional diagnose the issue.

• Avoid driving with a full tank until resolved.

Warranty information

Check with the vehicle manufacturer for warranty coverage on emissions-related components.

Historical data

This code has been commonly associated with BMW vehicles due to their specific DM TL system design.

Urgency level

Moderate – While not immediately dangerous, it can lead to emissions test failure and potential fuel leaks.

Testing conditions

• Engine at operating temperature

• Vehicle on a level surface

Component location

The DM TL solenoid is typically located near the fuel tank or in the rear of the vehicle.

FAQs

Q: Can I drive with a P1472 code?
A: Yes, but it's best to get it fixed soon to avoid emissions issues.

Q: Will this code affect my car's performance?
A: It may not affect performance directly, but it can lead to emissions problems.

Optional diagnostic gear

Tools that may help diagnose P1472

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

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Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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