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Old Dec 5th, 2012, 09:23 PM
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Dastardly Particulate Filter

Well this week I bought my wife a 57 plate Mini Cooper Diesel with 78K on the clock. We were chuffed to bits with it, that was until yesterday when the dastardly warning triangle showed up on the dash and basically showed a problem with the dpf system (not covered under warranty). I have been on a good long run in the car this evening (40 miles) at 2500 rpm and the light is still on so I guess the regeneration cycle isn't working or the filter has come to the end of it's usefulness.
Now here is my dilemma.

Do I go down the road of trying to fix the problem keeping the DPF system and probably end up getting ripped off by my local stealership, who already said they want £80 just to do a diagnostic!!!!!! or do I go down the deletion/remap path if so can anyone recommend a company in the Cambridge area that I can trust to do the job properly?

Not a good start to my MINI ownership

your input is appriciated
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Old Dec 5th, 2012, 10:04 PM
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If it were me id be having the delete and remap. DPFs are a pain in the you know what.


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Old Dec 6th, 2012, 01:03 PM
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Quote: Originally Posted by Ryanjdover (original)
If it were me id be having the delete and remap. DPFs are a pain in the you know what.




Thinking the same myself, I have been quoted £450 for a delete and remap, BMW/Mini will not even give me a price without looking at the car first and that will cost £100. Rought guess from what I have found online is £1000
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Old Dec 6th, 2012, 06:21 PM
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We have just this week had ours deleted and remapped.

Sill got our low mpg problem tough
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Old Dec 6th, 2012, 07:36 PM
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I thought the DPF was cleaned by long runs at higher revs. It's cold starts and urban traffic that clogs the DPF. Also I thought that cars with a DPF also have additive injected into the fuel line. Maybe the additive injection system is not working or additive empty.
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Old Dec 7th, 2012, 05:35 AM
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Quote: Originally Posted by Benlg81 (original)
We have just this week had ours deleted and remapped.

Sill got our low mpg problem tough

Who did you get it done by?


I spoke to one company in St Albans and he basically said you need to find and fix the problem that is causing the DPF to malfunction fix that and only then should you remove the DPF. He has had a lot of experience of companies removing the filter without curing the engine fault first, so basically if an erg valve or injector is causing the filter to block you will still have that issue if the dpf removed.

Taking my car to a friends garage on Monday to have the error codes read and have a forced regeneration carried out. if that clears it I am still going to get rid of the DPF at some point.
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Old Dec 7th, 2012, 05:37 AM
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Quote: Originally Posted by MrLoz (original)
I thought the DPF was cleaned by long runs at higher revs. It's cold starts and urban traffic that clogs the DPF. Also I thought that cars with a DPF also have additive injected into the fuel line. Maybe the additive injection system is not working or additive empty.


The DPF is cleaned by driving for a duration of atleast 30 miles at over 2000 rpm. Fluid may have run out in my car as it's done 78K, I will find out on Monday


I am of the mind that this system has been installed so owners are forced to go to the main stealers to repair the car. Why not put a fluid level indicator on the car and why not make it possible to do a forced regeneration without needing to plug the car into a diagnostic machine. I remember when Catalytic converters came out in the early 90's car owners had issues with them and just removed them.
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Old Dec 7th, 2012, 08:23 AM
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Where is the egr on these cars? I will take off and give a good clean.
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Old Dec 7th, 2012, 07:44 PM
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On the PSA diesel engine variants, it's behind the motor under the airbox but offset to the right (standing in front of the car). It should have a "Valeo" mark on it. Hard to miss.

When you look down there, you'll see a silver cylinder, that's the exhaust gas cooler. On the right hand side of the silver cylinder is the EGR. You'll need a special clamp to refit the EGR if you remove it.

I can try and snap a photo, but it might be tricky with the airbox in the way. It's also dark and snowing right now...maybe tomorrow if you're desperate for a snapshot.
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Old Dec 8th, 2012, 09:02 AM
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Cheers for that mate ill have a look after the weekend. Is the clamp not reusable then?

Any ideas on part number or if hey separately?
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Old Dec 8th, 2012, 09:08 AM
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16283J - EGR Valve Clamp - Citroen Peugeot Fiat Renault


Is this the clamp
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Old Dec 8th, 2012, 05:24 PM
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Hmm, not sure if that's the one. I think it doesn't necessarily have the bolt on it. I'll have to verify.
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Old Dec 10th, 2012, 05:37 PM
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I have had a diagnostic done on the car by ATS as I can't get it to the main dealer until next Wednesday.

They found the following fault, 4159 Main Pre-Heating relay faulty

I have done a search and can not find any references to the fault code, can anyone shed more light on the matter?
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Old Dec 12th, 2012, 05:21 PM
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Sounds like a glow plug issue
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Old Jan 5th, 2013, 09:58 PM
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ditto heater relay or glow plug issue.
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