2007 Ford Focus C-Max 1.6 TDCi (110) Ghia DPF – Workshop Service & Repair Manual

DPF (Diesel Particulate Filter) problems can impact performance and increase emissions. To resolve these issues:

1. Perform a Regeneration: Drive at higher speeds to initiate a forced regeneration of the DPF.
2. Check for Blockages: Inspect the DPF and its surrounding components for blockages or soot buildup.
3. Inspect the Differential Pressure Sensor: Ensure it is functioning correctly and accurately measuring the DPF pressure.
4. Clean or Replace the DPF: If the above steps do not resolve the issue, consider cleaning or replacing the DPF.
5. Consult the Manual: Our manual includes detailed steps and troubleshooting for effective DPF management.

Turbocharger issues can affect engine performance. Here’s how to address them:

1. Inspect for Leaks: Check 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. Check the Wastegate: Ensure it is functioning properly and is not stuck.
4. Clean the Air Filter: A clean air filter helps 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 lead to performance issues. Follow these steps:

1. Inspect for Blockages: Check the EGR valve and its passages for carbon buildup or blockages.
2. Clean the Valve: Use a suitable cleaner to remove carbon deposits from the EGR valve.
3. Test Valve Operation: Ensure the EGR valve opens and closes correctly.
4. Replace if Necessary: If cleaning does not resolve the issue, replace the EGR valve.
5. Consult the Manual: Our manual includes detailed diagnostics and repair procedures for EGR valve faults.

Limp-home mode limits vehicle performance to prevent damage. To address this:

1. Read Error Codes: Use an OBD-II scanner to retrieve and interpret error codes from the ECU.
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 engine fluids are at the correct levels.
5. Consult the Manual: Our manual offers comprehensive troubleshooting and repair steps for limp-home mode issues.

Electrical issues can be complex but manageable. Here’s how to resolve 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 like lights, windows, and locks are functioning correctly.
4. Inspect the Battery: Ensure the battery and alternator are in good condition.
5. Consult the Manual: Our manual provides detailed guidance on diagnosing and fixing various electrical issues.