Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the part of the car that helps keep the air cool for the engine is using too much electricity. It's like when a toy uses too much battery power and stops working right.
The code P146F indicates an issue with the charge air cooler coolant pump, specifically that it is drawing too much current, which can affect its performance.
The charge air cooler coolant pump is responsible for circulating coolant to reduce the temperature of the air entering the engine. The P146F code is triggered when the Engine Control Module (ECM) detects that the pump is drawing more current than expected, which could indicate a fault in the pump or its electrical circuit.
• Check Engine Light illuminated
• Reduced engine performance
• Overheating issues
• Faulty charge air cooler coolant pump
• Electrical short in the pump circuit
• Obstruction in the coolant system
Charge Air Cooler: A device that cools the air entering the engine to increase efficiency.
Coolant Pump: A pump that circulates coolant to manage temperatures within the engine system.
• Use an OBD-II scanner to confirm the code.
• Inspect the charge air cooler coolant pump and its wiring for damage.
• Check for obstructions in the coolant system.
• Replace the faulty charge air cooler coolant pump.
• Repair or replace damaged wiring in the pump circuit.
• Clear any obstructions in the coolant system.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Audi A4
• Volkswagen Golf
• BMW 3 Series
• Regularly inspect and maintain the coolant system.
• Ensure proper electrical connections.
• Replace worn-out components promptly.
Engine Performance
• Avoid driving the vehicle until the issue is resolved to prevent engine damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with the vehicle manufacturer for warranty coverage on the charge air cooler system.
This code has been associated with vehicles using turbocharged engines where efficient cooling is critical for performance.
High – This issue can lead to engine overheating and reduced performance if not addressed promptly.
Driving with this code active may lead to safety hazards due to potential engine overheating.
• Engine at operating temperature
• Vehicle under load
The charge air cooler coolant pump is typically located near the front of the engine bay, close to the radiator.
Q: Can I drive with a P146F code?
A: It's not recommended to drive with this code active, as it can lead to engine overheating and damage.
Q: How do I reset the P146F code?
A: After repairs, use an OBD-II scanner to clear the code from the vehicle's computer.
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