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  #1 (permalink)  
Old Dec 16th, 2013, 02:58 PM
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Exclamation DPF Malfunctioning??

Hi all,

I'm in need of some expertise.

Last Monday my girlfriend was driving her 57 Plate Mini Cooper Diesel home from work when a warning symbol came up on the display. I checked it out when she got home and it refers to Diesel Particle Filter (DPF) Malfunctioning (CC-ID 049).

The Mini Owners manual says to drive the car over 40Mph for a period of over 5 minutes to force a regeneration. I found this to be odd as my girlfriend drives 25 miles, twice daily which is mainly dual carriageway. However, I decided to take the car out for a spin to see if I could clear the fault. I drove approximately 15 miles with the car at 2.5K revs, which didn't clear the fault, so I drove back at over 4K revs which also didn't clear it.

There are no performance or efficiency issues with the car.

The car has done 82K and fell out of it's Mini TLC XL package a couple of months ago. I didn't really want to pay main dealer prices for them to diagnose the fault, so I decided to take the car to my local approved Mini specialist.

They connected the car up to the laptop and ran the diagnostic check which failed halfway through the check with an EGR valve problem. We had this replaced costing just shy of 400. He said the EGR valve was completely blocked as were the inlet and outlet pipes. He managed to clean out the pipes. He then ran the diagnostic check again and the car passed the test. DPF blockage was showing as 0.3%. For good measure he decided to put a couple of bottles of DPF cleaner in the fuel tank just to make sure. He then took the car out and everything seemed fine.

When we picked the car up, immediately the same warning message came back, so we gave the car back to the specialist. He did another diagnostic check which passed with no faults and the DPF still reads 0.3% blocked. He tried a software update which also made no difference. It is probably worth noting that the specialist said that when he connects the laptop into the car, the warning message disappears, and then comes back when it is unplugged.

Last night I took the car out for a 60 miles round trip and kept the car at 2.5K revs for the majority of the journey and the fault still stands. The specialist has said that there isn't anything else he can think of??

Is someone able to help me with this please, it would be much appreciated.

Thanks,
Liam
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  #2 (permalink)  
Old Dec 17th, 2013, 06:34 AM
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If the load on the DPF was too high, even if it went through a regeneration, it may need to be reset by the dealer.

Second, he should have never put the DPF additive in the tank, there is already a reservoir of eolys fluid that is automatically injected into the fuel line depending on the particle filter load.

I'm not familiar with CC-ID 049, can you post some more detail on the exact error?

LAst, was there any change in performance after the EGR was cleaned?


Quote: Originally Posted by LSM1604 (original)
Hi all,

I'm in need of some expertise.

Last Monday my girlfriend was driving her 57 Plate Mini Cooper Diesel home from work when a warning symbol came up on the display. I checked it out when she got home and it refers to Diesel Particle Filter (DPF) Malfunctioning (CC-ID 049).

The Mini Owners manual says to drive the car over 40Mph for a period of over 5 minutes to force a regeneration. I found this to be odd as my girlfriend drives 25 miles, twice daily which is mainly dual carriageway. However, I decided to take the car out for a spin to see if I could clear the fault. I drove approximately 15 miles with the car at 2.5K revs, which didn't clear the fault, so I drove back at over 4K revs which also didn't clear it.

There are no performance or efficiency issues with the car.

The car has done 82K and fell out of it's Mini TLC XL package a couple of months ago. I didn't really want to pay main dealer prices for them to diagnose the fault, so I decided to take the car to my local approved Mini specialist.

They connected the car up to the laptop and ran the diagnostic check which failed halfway through the check with an EGR valve problem. We had this replaced costing just shy of 400. He said the EGR valve was completely blocked as were the inlet and outlet pipes. He managed to clean out the pipes. He then ran the diagnostic check again and the car passed the test. DPF blockage was showing as 0.3%. For good measure he decided to put a couple of bottles of DPF cleaner in the fuel tank just to make sure. He then took the car out and everything seemed fine.

When we picked the car up, immediately the same warning message came back, so we gave the car back to the specialist. He did another diagnostic check which passed with no faults and the DPF still reads 0.3% blocked. He tried a software update which also made no difference. It is probably worth noting that the specialist said that when he connects the laptop into the car, the warning message disappears, and then comes back when it is unplugged.

Last night I took the car out for a 60 miles round trip and kept the car at 2.5K revs for the majority of the journey and the fault still stands. The specialist has said that there isn't anything else he can think of??

Is someone able to help me with this please, it would be much appreciated.

Thanks,
Liam

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Old Dec 17th, 2013, 07:47 AM
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Hi,

Thanks for the reply.

Could this not be reset by the specialist?

Ohh, I didn't realise there was an additive. I take it that the cleaner that he put through won't cause any damage?

CC-ID 049 is basically the BMW check control code - it just refers to the DPF Malfunction. I think it is just a code that matches the symbol.

It is the girlfriends car, and she hasn't noticed any performance or efficiency changes. When I took the car out Sunday night, I didn't notice any obvious differences either.

Thanks,
Liam


Quote: Originally Posted by MiniDeLux (original)
If the load on the DPF was too high, even if it went through a regeneration, it may need to be reset by the dealer.

Second, he should have never put the DPF additive in the tank, there is already a reservoir of eolys fluid that is automatically injected into the fuel line depending on the particle filter load.

I'm not familiar with CC-ID 049, can you post some more detail on the exact error?

LAst, was there any change in performance after the EGR was cleaned?

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Old Dec 18th, 2013, 07:47 AM
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From what I understand, there are two levels of errors thrown. the first can be reset if the DPF manages to regenerate. However, the second error level requires a reset by the dealer. I suppose, depending on their equipment, a specialist non-Mini mechanic could likely reset it.

The Mini uses an additive (Eolys fluid) to burn off the particulate matter trapped by the DPF. They advise in the owner's manual not to put any additional additives into the fuel. The reason being is that the regeneration cycle activates based on the DPF load and. I think what happens is that the additive gets injected into the fuel and then the ECU increases the fuel quantity in an attempt to increase the exhaust gas temperatures. The additive lowers the combustion point of the particulate matter so that, combined exhaust gas temps and additive allow the particulates to be burned off.

There is a possibility that the additive put into the tank could foul the particle filter interior, but there is no way of knowing this unless the DPF is removed and inspected.

I know that on the Peugeot forums (the engine in the Cooper D is a Peugeot engine) I've seen people state that at high mileage the DPF becomes choked with ash after many regeneration cycles and then it requires replacement.

So, either it's a simple code issue or there might be a problem with the DPF itself. The CC-ID 049 isn't all that helpful in diagnosing the issue. The car hasn't thrown any P-codes, has it?


Quote: Originally Posted by LSM1604 (original)
Hi,

Thanks for the reply.

Could this not be reset by the specialist?

Ohh, I didn't realise there was an additive. I take it that the cleaner that he put through won't cause any damage?

CC-ID 049 is basically the BMW check control code - it just refers to the DPF Malfunction. I think it is just a code that matches the symbol.

It is the girlfriends car, and she hasn't noticed any performance or efficiency changes. When I took the car out Sunday night, I didn't notice any obvious differences either.

Thanks,
Liam

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