2007 Ford Focus C-Max 1.6 TDCi (110) Ghia DPF Durashift-cvt (cont. variable) – Workshop Service & Repair Manual

DPF (Diesel Particulate Filter) issues can lead to poor performance and higher emissions. To resolve these problems:

1. Initiate a Regeneration: Drive at higher speeds to perform a forced regeneration of the DPF.
2. Inspect for Blockages: Check for soot buildup or blockages in the DPF.
3. Examine the Differential Pressure Sensor: Ensure it is functioning properly and reading accurately.
4. Clean or Replace the DPF: If necessary, clean the filter or replace it if it is beyond repair.
5. Consult the Manual: Our manual includes detailed procedures and diagnostics for managing DPF issues effectively.

Turbocharger issues can significantly affect engine performance. To address these issues:

1. Check for Leaks: Inspect the turbocharger and associated hoses for oil or air leaks.
2. Examine Turbo Components: Verify that the turbocharger is not damaged and the shaft has minimal play.
3. Inspect the Wastegate: Ensure that the wastegate is operating correctly and not stuck.
4. Clean the Air Filter: A clean air filter can prevent turbocharger issues.
5. Consult the Manual: Our manual provides step-by-step instructions for diagnosing and repairing turbocharger problems.

Faulty EGR (Exhaust Gas Recirculation) valves can impact engine performance. Here’s how to address them:

1. Check for Blockages: Inspect the EGR valve and its passages for carbon buildup.
2. Clean the Valve: Use an appropriate cleaner to remove carbon deposits from the EGR valve.
3. Test Valve Operation: Ensure that the EGR valve opens and closes properly.
4. Replace if Needed: If cleaning does not resolve the issue, consider replacing the EGR valve.
5. Consult the Manual: Our manual offers detailed guidance on diagnosing and repairing EGR valve faults.

Limp-home mode restricts performance to protect the engine. To address this:

1. Read Error Codes: Use an OBD-II scanner to retrieve and interpret any stored error codes.
2. Inspect Sensors and Wiring: Check all relevant sensors and wiring for faults or damage.
3. Reset the ECU: Sometimes resetting the ECU can clear limp-home mode issues.
4. Verify Fluid Levels: Ensure that all engine fluids are at proper levels.
5. Consult the Manual: Our manual provides comprehensive troubleshooting steps for limp-home mode activation.

Electrical issues can be complex but manageable. Here’s how to tackle them:

1. Check Fuses and Relays: Inspect and replace any blown fuses or faulty relays.
2. Examine Wiring: Look for damaged or loose wiring connections.
3. Test Electrical Components: Verify that all electrical components, such as lights and windows, are functioning correctly.
4. Inspect the Battery: Ensure the battery and alternator are in good condition.
5. Consult the Manual: Our manual includes detailed diagnostics and solutions for various electrical issues.