Navara DPF filter issues

rolion

Hello,

To any Navara owners with past or recent DPF filters issue, advice needed.

Got DPF warning light on dashboard.
Drove it to nearest dealer, they had it for few days to regenerate the DPF.
After few days, still same issue and they called me back, i said "forget it"

Monday I wasn't able to drive up a normal soft hill ,running very slowly.
Same day, I parked the car in a position that it had no power to reverse, I had to drive on the grass to return back on the road !

Dropped the car to a garage beside Leixlip...the chap there sounded very familiar with the problem, it explained me in plain English what's wrong and I left the car with him for diagnosis.

Today he came with a price of around €1,500 VAT included for:
-removing /cleaning the filter
-reconditioning or new EGR valve
-various pipes
-various calibration,
-on-board computer reset / set

Final price could be lower or could be higher !

Not sure that makes sense but what about Navara's owners, is that fcuking normal !??

Thanks in advance.

dingus12

You would be crazy to replace the dpf, only to have the same problem down the line, go to a specialist dpf removal/remapping place, such as torquetronix in NI,or where-ever does it down south, they will gut out the DPF, then remap the ecu, to a software version with out the dpf malarkey, such as a manual Navara.

You'll also gain around 4-8pmg from doing so, Lots of info on the Navara.net forum.

rolion

Thanks.

The garage will not replace or remove the DPF unit.
They are taking it down to clean as is more than 70mg of something .
The quoted price is only for labour, which I find ...too "dirty" to be true but who I'm I to argue or to know what is true or not.

I'll ask for a full invoice breakdown, to see how can it be charged that kind of money on 2 days of only labour.

Been told late last night that is better to take it down and replace it with a second hand unit, from a written-off car...problem is how good will that be !??

I guess they have me by my balls here...

_Brian

Would It Be worth trying some if the DPF cleaner solutions in the diesel.

I know it's worked a treat for some folks to clean DPF and extinguish the DPF light.

rolion

Done it two times already Brian.Still no joy.

Been told that with the cleaners we may end up in a false comfort by forcing the engine to warm-up and the fact that gases cannot go out in a proper way, turbo and / or engine may be damaged.

Still trying to understand how my hard worked 1500 will help the already compromised environment !

Falcon L

Research DPF removal. There are many very capable guys doing this service throughout Ireland.

supervento

you could try these people, u will need to get the dpf removed and sent to them.... they charge between €250 & €300 depending. link: http://www.thedpfclinic.com/

to get an idea of the time involved removing the dpf filter u could ring a nissan main dealer to see if the will give u the flat rate time to remove and refit this item. they will have this information, its warranty flat rate times. this will give u an idea if u are being over charged on a labour time.

kapisko1PL

What my mechanic told me is that you can connect it to a computer and set the computer to rev at different high speeds and leave it for some time until the carbon sot in the DPF filter burns out. Blocked DPF filter is a result of non dynamic driving style. You need to drive it a little bit more aggressive.

I have a 2.0HDI Peugeot 307. When I bought it I would get a message error on the dash saying "UNBLOCK DIESEL FILTER". (It was bought from a lady so I assume she would never rev it high). After I got it I took it for a drive to Limerick and back on the motorway and kept the revs high at around 3000RPM in low gear. (Yes this is very uneconomical but way more economical than paying 1500 at the dealer). Since that time I have no problem with a DPF filter.

kapisko1PL

What my mechanic told me is that you can connect it to a computer and set the computer to rev at different high speeds and leave it for some time until the carbon sot in the DPF filter burns out. Blocked DPF filter is a result of non dynamic driving style. You need to drive it a little bit more aggressive.

I have a 2.0HDI Peugeot 307. When I bought it I would get a message error on the dash saying "UNBLOCK DIESEL FILTER". (It was bought from a lady so I assume she would never rev it high). After I got it I took it for a drive to Limerick and back on the motorway and kept the revs high at around 3000RPM in low gear. (Yes this is very uneconomical but way more economical than paying 1500 at the dealer). Since that time I have no problem with a DPF filter. Find a long stretch of road and drive uo and down on it reving it high (around 4000-4500RPM). Believe me, force it to unblock itself.

watch?v=9oulaV4sGxo

Falcon L

My understanding is that you can burn off soot, but the problem is ash buildup. When the ash reaches a certain level, replacement is recommended.

kapisko1PL

"Recommended"

I wouldn't use a "recommended" dealer service for replacing something simple like fuel/oil filter. They would rip me off.

Floor the accelerator. It will help but drive it slowly for a while and let the engine warm up. When the engine warms up, floor it and drive it aggressively for half an hour (reving it around 3000-4000rpm) using maximum possible acceleration.

Falcon L

kapisko1PL wrote: »

"Recommended"

I wouldn't use a "recommended" dealer service for replacing something simple like fuel/oil filter. They would rip me off.

Floor the accelerator. It will help but drive it slowly for a while and let the engine warm up. When the engine warms up, floor it and drive it aggressively for half an hour (reving it around 3000-4000rpm) using maximum possible acceleration.

Yep, all fine for burning off the soot, but after about 100,000 km the DPF is full of ash. At this point, you can send the unit off for cleaning (somewhere in Clare), replace with a new one or get it professionally removed and a remap done.

kapisko1PL

Falcon L wrote: »

Yep, all fine for burning off the soot, but after about 100,000 km the DPF is full of ash. At this point, you can send the unit off for cleaning (somewhere in Clare), replace with a new one or get it professionally removed and a remap done.

Hmm... I am not trying to be smart (I know I sound like it) but my DPF filter should be blocked at this stage. (117000k miles). So far it drives very nicely.

But I have to agree with you on the removal and remap. It costs way cheaper (450-500 euro) and not 1500 like the OP told us.

What I am thinking. Let's try the simplest and cheapest options first. Drive it at high revs and tell us if it helped. If it doesn't we can be sure that the only option left is to either clean it or get a new one.

Falcon L

kapisko1PL wrote: »

Hmm... I am not trying to be smart (I know I sound like it) but my DPF filter should be blocked at this stage. (117000k miles). So far it drives very nicely.

But I have to agree with you on the removal and remap. It costs way cheaper (450-500 euro) and not 1500 like the OP told us.

What I am thinking. Let's try the simplest and cheapest options first. Drive it at high revs and tell us if it helped. If it doesn't we can be sure that the only option left is to either clean it or get a new one.

Yeah the mileage can vary a lot. I had my DPF cored and a remap done last year. The ash content was quite low and a regen would have sorted her out. The removal was the best thing I have done for a car on many years. Much beter MPG, much more power.

But you're right, go for the simple fix first.

kapisko1PL

Any luck OP ?

rolion

Hi,

Long story and I had a mental breakdown !

Went on Friday afternoon to pay & collect the car.
Got an invoice for €1,500 inc VAT for the work, paid and got the car.
Drove it for few miles and I felt that is not right...thought may need to warm-up or something. Got home safely that afternoon.

Next morning, at 10ish ,start the car and drove to work. Shocked...after few miles, DPF light came on again and the car wont even rev over 2000.At the nearest hill, shocked, mental ...the 2500 turbo diesel engine will not get the car running ! I got in a complete stand still with engine running in the middle of a softy hill (after Lucan bridge, on the back road to Clonee) and ...got no words !
Garage closed on Saturday !

Today, Monday, texted the garage and asked to come with a response by lunch time. They've text me and asked me to drop the car back to mechanic.
Dropped the car to garage and told the staff that any further technical communications between me and them will be done via my local Nissan garage(as they will be able to get down to technical terms that I cannot get it myself) AND any future costs occurred will be going trough my company solicitor(as I paid for a repair that hasn't been completed, even I can say that the car / engine performs worse than before).

After car is been second time repaired,it will be dropped to a local Nissan garage for a technical report.

To be honest, i don't trust the second repair anymore but according to legislation, I have to give them a second chance.
What other options do I have now !??

Please see attached invoice listing the breakdown cost(s).

malinheader

Had the same problem with Volvo s40, kept on going into slow mode and and giving code for dpf blocked. Lost count how many times i had to crawl back to main dealer a round trip of 100 miles, each time i was told problem solved ie egr valve at fault , air flow meter at fault,or a faulty pipe on the turbo This was after having the dpf replaced at a cost of around €800 euro.After counting up what it had cost me it nearly drove me to the mental.I think Simple explanation is the mechanic in the dealership hadnt a clue about a dpf and was just resetting the cars computer and getting me away for a couple of weeks or less at a time. Know what your going through its a head fry.

Leydo10

Sean ryan cleans DPFs in clane. RADS is the name of the garage. He uses the bg products DPF machine.. Guy in finglas has it also. Think around €450 to do and includes oil service after...