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

DPF (Diesel Particulate Filter) issues can significantly impact your vehicle's performance. Here’s how to address them:

1. Initiate a Regeneration Cycle: Drive at a high speed on the highway to initiate a forced regeneration of the DPF. This helps burn off accumulated soot.
2. Check for Blockages: Inspect the DPF and associated exhaust pipes for blockages or severe soot build-up.
3. Examine the Differential Pressure Sensor: Ensure the sensor is not clogged or malfunctioning.
4. Clean or Replace the DPF: If regeneration and cleaning efforts are unsuccessful, consider cleaning or replacing the DPF.
5. Consult the Manual: Detailed instructions for diagnosing and addressing DPF issues are available in our manual.

Turbocharger issues can affect your engine’s power and efficiency. To troubleshoot:

1. Inspect for Leaks: Check the turbocharger and hoses for oil leaks or signs of damage.
2. Examine Turbo Components: Ensure the turbocharger itself is intact and the shaft has minimal play.
3. Check the Wastegate: Verify that the wastegate opens and closes correctly to manage boost pressure.
4. Replace Air Filter: A clogged air filter can cause turbocharger problems; replace it if necessary.
5. Refer to the Manual: Our manual provides detailed steps for diagnosing and repairing turbocharger issues.

Faulty EGR (Exhaust Gas Recirculation) valves can affect engine performance and emissions. Follow these steps:

1. Inspect for Carbon Deposits: Check the EGR valve and its passages for carbon build-up or blockages.
2. Clean the EGR Valve: Use an appropriate cleaner to remove carbon deposits from the valve and its passages.
3. Test Valve Operation: Ensure the EGR valve operates correctly, opening and closing as required.
4. Replace the Valve: If cleaning does not resolve the issue, replace the EGR valve with a new one.
5. Consult the Manual: Our manual includes thorough instructions for diagnosing and fixing EGR valve faults.

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

1. Retrieve Error Codes: Use an OBD-II scanner to read the error codes from the vehicle’s ECU.
2. Inspect Sensors and Wiring: Check for faults or damage in relevant sensors and wiring.
3. Reset the ECU: Sometimes, resetting the ECU can clear limp-home mode and restore normal operation.
4. Check Fluid Levels: Ensure that oil, coolant, and other essential fluids are at proper levels.
5. Refer to the Manual: Our manual provides detailed diagnostics and solutions for limp-home mode activation.

Electrical issues can be challenging but manageable. Here’s how to address them:

1. Check Fuses and Relays: Inspect and replace any blown fuses or faulty relays in the vehicle’s fuse box.
2. Examine Wiring: Look for damaged or loose wiring connections throughout the vehicle.
3. Test Electrical Components: Verify that electrical components such as lights, windows, and other accessories are functioning correctly.
4. Inspect the Battery: Ensure the battery is in good condition and fully charged.
5. Consult the Manual: Our manual offers detailed troubleshooting and repair instructions for various electrical problems.