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  Skoda Octavia DPF warning light 7 Mar 2016 (Ask HJ)
  My Skoda Octavia 1.6 diesel is six months old and the DPF light has started to come on. I use it for daily commuting and school runs. About once a week...
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  DPF removal - is it legal to do so? 29 Jun 2013 (Ask HJ)
  What is the legal requirement in regards to the MoT, road tax and insurance, if you remove the diesel particulate filter and remap the engine of a Nissan...
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  Why don't I see any mention of DPF issues in pick-up trucks? 24 Jan 2017 (Ask HJ)
  There must be a lot of pickups used for short journeys, yet I haven't seen anyone mention DPF issues. Why is this?
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  How can I avoid DPF problems? 21 Feb 2016 (Ask HJ)
  The manual for my Ford Focus Estate 1.6 TDI instructs to occasionally run in lower gears at high revs but does not say how high for the revs or over what...
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  Will I have DPF problems with this driving style? 3 Dec 2014 (Ask HJ)
  I'm tempted by a 2010 36k Qashqai 2.0-litre diesel with FSH. I like everything about it but concerned whether I might have DPF issues. Annual mileage...
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  Buying a Volvo XC90 - which engine is best? 26 Sep 2013 (Ask HJ)
  I'm looking at purchasing a used Volvo XC90 (diesel) but don't want one with a DPF. I'm also unsure about the engine size - is the V8 worth the extra money...
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  Does a Honda CR-V Mk3 have a DPF? 5 Oct 2022 (Ask HJ)
  I have just purchased a Honda CR-V 2.2 diesel Mk3 model AWD. Does this vehicle have a DPF as I do not do much motorway driving? It is a 58 plate.
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  How do we fix our blocked DPF? 13 Apr 2018 (Ask HJ)
  Our car's DPF is blocked. I've have tried regenerating it by running it down the motorway, but it's had no effect. Is there anything else I can do?
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  Does the KIA Soul have a DPF? 6 Jul 2013 (Ask HJ)
  I will check whether the 2011 KIA Soul diesel automatic we are looking at has a DPF. It seems it will be a bonus if it has. We have looked at the Venga...
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  Is it legal to have the DPF removed from your car? 25 May 2013 (Ask HJ)
  A quick Google search shows lot of companies are offering DPF removal. I can see this as an option that would be considered by many with DPF issues. As...
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  How do I check the DPF is in place on a used car? 2 Jun 2025 (Ask HJ)
  You kindly helped me chose between a petrol 4x4 and a diesel pick-up to replace my 20 year old Ranger. I've been looking at Nissan Navara, Mitsubishi L200,...
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  Can we reject a Mazda 3 for a DPF issue? 11 Nov 2021 (Ask HJ)
  Four months since buying a 2014 Mazda 3 2.2-litre diesel and on the day of collection the DPF warning light came on. The garage has attempted to repair...
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  How much is a DPF replacement? 10 Aug 2016 (Ask HJ)
  How much will a DPF replacement cost for my 2010 Renault Grand Scenic?
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  Citroen C5 DPF light 16 Sep 2012 (Ask HJ)
  On my Citroen C5 2.0 diesel the DPF light intermittently comes on. At the same time, cruise control stopped working.
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  Selling a car with the DPF removed 24 Jun 2014 (Ask HJ)
  I've had the DPF removed from my diesel car and had the required ECU remapping done about 18 months ago. It's been fine since then with no more going in...
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  Will I have to change the DPF in my Qashqai after three years? 30 Nov 2013 (Ask HJ)
  You recently advised somebody who was thinking of buying a diesel car to take in to account replacing the DPF after three years. I have a one-year-old...
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  Ford Focus DPF problems 19 Jan 2012 (Ask HJ)
  Have had the engine light come on and engine malfunction message displayed on my Ford Focus 1.6 TDCI. The car restricted itself to 40 MPH. Have taken...
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  BMW 5 Series DPF issues - what should I do? 21 Jan 2022 (Ask HJ)
  I have a 63 plate BMW 520D (F10)  Auto Efficient Dynamic version (Euro 6) As I drive a lot on motorway, the car has a high mileage, close to 180,000 miles....
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  How long will the DPF last on a Volvo C30? 16 Nov 2016 (Ask HJ)
  I have always had petrol engine cars myself, but my dad has recently purchased a 2010 (60) plate Volvo C30 D2 (1.6 diesel engine, facelift model, R-Design)...
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  Mazda 6 diesel engine/system does not have DPF - good thing? 19 Jan 2016 (Ask HJ)
  I have been advised that the Mazda 6 diesel engine with SkyActive technology does not have a DPF and therefore avoids associated problems of other diesel...