Problem with a BMW X3 2.0 L TD 2005 121k

No power over 30 mph and EML on, fault codes stored for faulty glow plugs, throttle body and DPF blockage, new DPF only fitted the month previously.

The fault was cured by replacing the glow plugs and throttle body, removing the inlet manifold/swirl flaps and manually cleaning with Forté Diesel Intake Cleaner. The DPF was then removed and manually cleaned with Forté DPF Off-Car Cleaner as per instructions, carrying out an extended Forté New Generation Engine Flush and adding Forté Diesel Specialist Injector Cleaner and Forté DPF Cleaner and Regenerator into the fuel tank. The vehicle was then taken on an extended road test with the vehicle power and performance restored.

Thanks to John at John Miller Motor Services in Penryn, Cornwall

Problem with a FORD FOCUS 1.6 L TDCi 2005 89k

EML on and fault code stored for a Diesel Particulate Filter (DPF) fault, suspect DPF blocked due to short stop/start driving.

The fault was cured by removing the DPF and manually cleaning with Forté DPF Off-Car Cleaner as per instructions, carrying out an extended Forté New Generation Engine Flush and adding Forté Diesel Specialist Injector Cleaner and Forté DPF Cleaner and Regenerator into the fuel tank. The vehicle was then taken on an extended road test with the vehicle power and performance restored.

Thanks to Mark at Pipers Auto Services in Dorking, Surrey.

Problem with a VW GOLF 2.0 L TDi 2013

 EML on and fault code stored for a DPF fault, unable to carry out DPF regeneration. DPF checked on diagnostic machine showing filter blockage 58%.

The fault was cured by removing the DPF and manually cleaning with 2 x Forté DPF Off-Car Cleaner as per instructions, carrying out an extended Forté Advanced FormulaMotor Flush adding Forté Diesel Specialist Injector Cleaner and Forté DPF Cleaner & Regenerator into the fuel tank. After cleaning the DPF was regenerated and the filter reading was rechecked showed the filter blockage at 4%.

Thanks to Matt at DNA Vehicle Services in Bodmin, Cornwall.

Problem with a VAUXHALL ZAFIRA 1.9 L CDTi 2009 119k

EML on and fault code stored for a DPF fault, engine will only run on idle, suspect fault due to excessively blocked DPF. After further investigation, the DPF was removed and the engine power was restored.

The fault was cured by removing the DPF and manually cleaning with 2 x Forté DPF Off-Car Cleaner as per instructions, adding Forté Diesel Specialist Injector Cleaner and Forté DPF Cleaner & Regenerator into the fuel tank. The vehicle was then taken on an extended road test with the vehicle power and performance restored.

Thanks to Kerry at Alfords Auto Repair Ltd in Saltash, Cornwall. 

Problem with a MERCEDES C220 2.2 L CDi 2011 138k

EML on and fault code stored for a DPF fault, suspect DPF blocked.

The fault was cured by removing the DPF and manually cleaning with Forté DPF Off-Car Cleaner as per instructions, carrying out an extended Forté Advanced Formula Motor Flush and adding Forté Diesel Specialist Injector Cleaner and Forté DPF Cleaner & Regenerator into the fuel tank. The vehicle was then taken on an extended road test with the vehicle power and performance restored.

Thanks to Pete at MDT Auto Engineers in Yate, Bristol