DPFMaxCare

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DPFMaxCare Professional DPF cleaning service based in Yeovil. We restore diesel particulate filters using advanc

Not every DPF job starts with a huge pressure reading.This BMW 1 Series arrived at 13 mbar. During cleaning, soot came o...
05/10/2026

Not every DPF job starts with a huge pressure reading.

This BMW 1 Series arrived at 13 mbar. During cleaning, soot came out first and ash followed as the process continued — a good example of why the starting number alone does not tell the full story.

The monolith appeared visually intact and the pressure line was checked clear. After washing, reverse rinsing and machine drying, the final bench reading was 1 mbar — around 92% less measured restriction.

✅ 13 mbar → 1 mbar
✅ Soot + ash removed
✅ Monolith visually intact
✅ Pressure line checked clear

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

dpfmaxcare.co.uk

04/10/2026

13 mbar didn’t look dramatic — but watch what the clean released.

This BMW 1 Series DPF had mixed soot and ash loading. During cleaning, soot came out first, followed by ash as the process continued.

After a full off-car wash, reverse rinse and machine dry, the final bench reading dropped to 1 mbar — around 92% less measured restriction.

✅ Soot + ash removed
✅ Monolith visually intact
✅ Pressure line checked clear
✅ Final bench reading: 1 mbar

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

dpfmaxcare.co.uk

A useful reminder that a lower restriction reading is not guaranteed after every clean.This oil-contaminated Peugeot 308...
03/10/2026

A useful reminder that a lower restriction reading is not guaranteed after every clean.

This oil-contaminated Peugeot 308 DPF released a large amount of oily soot, oil residue and ash during an extended machine clean. The monolith appeared visually intact during camera inspection, yet after drying the bench restriction remained approximately 50 mbar or slightly higher.

That matters because professional DPF cleaning is also about diagnosis and honest reporting. If contamination is removed but restriction remains abnormal, the next step is to investigate the vehicle-side cause — turbocharger, intake/boost system, crankcase breather, oil consumption, sensors and regeneration history.

✅ Contamination removed
✅ Monolith visually inspected
⚠️ Restriction remained high
➡️ Further diagnosis recommended

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

dpfmaxcare.co.uk

02/10/2026

Not every DPF can be recovered by cleaning alone.

This Peugeot 308 1.5 Diesel DPF was heavily contaminated with oil, soot and ash. A substantial amount of contamination was removed during an extended off-car cleaning process, including repeated flushing in both directions and machine drying.

The important part: after drying, bench restriction still remained around the original level. Camera inspection showed the monolith visually intact, so the filter was documented honestly and further vehicle-side diagnosis was recommended.

Cleaning can remove contamination — but it cannot repair the cause of oil ingress or guarantee recovery of every DPF.

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

dpfmaxcare.co.uk

Good flow does not always mean perfect DPF condition.This Ford Transit arrived with 33 mbar of measured restriction. Soo...
01/10/2026

Good flow does not always mean perfect DPF condition.

This Ford Transit arrived with 33 mbar of measured restriction. Soot and ash were removed during off-car cleaning, reverse rinsing and machine drying, bringing the final reading down to 1 mbar — approximately a 97% reduction.

During the borescope inspection, however, we also found a localised irregular/glazed area consistent with suspected thermal damage to the substrate. Cleaning restored excellent flow, but it cannot repair thermal damage.

✅ 33 mbar → 1 mbar
✅ Soot & ash removed
✅ Pressure ports / connections checked clear
⚠️ Suspected local thermal damage documented

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

dpfmaxcare.co.uk

30/09/2026

33 mbar ➜ 1 mbar — but the pressure result wasn’t the whole story.

This Ford Transit DPF was heavily restricted with soot and ash. After off-car pulse cleaning, reverse rinsing and machine drying, measured restriction fell by approximately 97%.

Borescope inspection also showed a localised area consistent with suspected thermal damage. Flow was restored, the damage was documented, and vehicle-side diagnosis was recommended.

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

dpfmaxcare.co.uk

A good example of why proper DPF cleaning should always include testing before and after the process.This Vauxhall Vivar...
29/09/2026

A good example of why proper DPF cleaning should always include testing before and after the process.

This Vauxhall Vivaro arrived at 33 mbar and was heavily loaded with soot and ash. The monolith looked intact, both pressure pipes were clear and there were no visible signs of oil contamination.

After professional off-car cleaning, reverse rinsing and machine drying, the final reading was 2 mbar — approximately a 94% reduction in measured restriction.

✅ 33 mbar → 2 mbar
✅ Heavy soot & ash removed
✅ Pressure pipes clear
✅ Monolith visually intact

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

dpfmaxcare.co.uk

28/09/2026

33 mbar ➜ 2 mbar. 🔧

This Vauxhall Vivaro DPF was heavily loaded with soot and ash. After inspection, pulse cleaning, reverse rinsing and machine drying, differential pressure dropped by approximately 94%.

✅ Heavy soot & ash removed
✅ Monolith visually intact
✅ Pressure pipes clear
✅ Final test: 2 mbar

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

dpfmaxcare.co.uk

One of those jobs that shows why we test, not guess. 🔍This Mercedes Sprinter DPF arrived with a 28 mbar restriction. Aft...
26/09/2026

One of those jobs that shows why we test, not guess. 🔍

This Mercedes Sprinter DPF arrived with a 28 mbar restriction. After a full off-car cleaning cycle, a significant amount of soot and ash was removed.

During final testing we also found a leak in the flexi section. Because air was escaping through the leak, the very low final pressure reading could not be treated as a reliable true result.

✅ DPF cleaned & dried
✅ Internal structure inspected
✅ Pressure lines checked
⚠️ Flexi leak identified and reported

Proper DPF cleaning is more than just washing the filter — inspection and testing matter too.

📍 DPF MaxCare – Yeovil
🌐 dpfmaxcare.co.uk

26/09/2026

Mercedes Sprinter DPF cleaning 🔧

28 mbar before cleaning. Heavy soot and ash removed, then a flexi leak was identified during final testing — exactly why proper inspection and pressure testing matter.

DPF MaxCare – Yeovil
Professional off-car DPF cleaning

Address

31 Westfield Crescent
Yeovil
BA213DF

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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