Problem with a JAGUAR XF 3.0L V6 2012 70k

Lack of power and EML on, fault codes stored DPF blockage and Air Flow Meter. DPF soot loading 47 grams, suspect fault due to DPF blockage.

The fault was cured by cleaning the DPF using the Forté Power-Clean DPF Cleaner and Forté  Power-Clean DPF Flush and carrying out an extended road test. After the road test the soot loading was rechecked showing 2 grams with the vehicle performance restored.

Thanks to Moose Autos in Fleetwood, Lancashire.

Problem with a VOLKSWAGEN GOLF 2.0L TDi 2004 170k

Vehicle cut out and unable to restart, suspect fault due to low fuel pressure/fuel blockage. After further investigation it was found that the fuel filter had never been replaced.

The fault was cured by replacing the fuel pump, fuel filter and manually cleaned fuel lines.
The oil system was also cleaned using Forté Advanced Formula Motor Flush and adding Forté Advanced Formula Diesel Treatment into the fuel tank. The performance was restored and the owner also reported that the vehicle had never driven so well.

Thanks to Russ at Green Lane Garage in Eltham, London.

Problem with a BMW 520D 2.0L 2007 169k

Engine management light on and lack of power, fault codes stored for glow plugs, throttle body and DPF blockage. New DPF and catalytic converter fitted a few months previously.

The fault was cured by fitting a new throttle body and glow plugs, removing the DPF and manually cleaning with 4 x Forté DPF Off-Car Cleaner as per instructions and cleaning the intake system with Forté Diesel Intake Cleaner. The oil system was also cleaned using Forté New Generation Engine 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 performance restored.

Thanks to Dean & Jay at Elkins Motors in Fareham, Hampshire.

Problem with a VAUXHALL VIVARO 137k

No obvious issues but seemed a little down on power.

Van ran on a dyno test producing 109 bhp (expected level 115 bhp).
Forté Power-Clean Diesel Intake Cleaner carried out for 40 minutes.

After road test the vehicle appeared a lot more responsive, more torque in higher gears and no turbo lag under acceleration. Repeating the dyno test 116 bhp was recorded.

Problem with a BMW 325d M57

Lack of power due to DPF blockage. Pressure values measured before treatment.

Forté Power-Clean DPF treatments carried out, measured values after treatment.

DPF soot load reduced and power restored. Test results shown below.
 

	Maximum recommended	Before treatment	After treatment
Idle	65	101.9	15.9
2000 rpm	150	403.9	73.9
Cut-off Speed	250	723.9	166.9