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Ash Waldron

T180 Cat And Dpf Replacement Really Needed?

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Hi fellow RAV4 owners,

I have just had some very bad news from FRF Toyota regarding an engine, VSC and 4x4 warning lights and the engine gone into 'Safe Mode'.

After them spending over 4 hours diagnosis they have concluded that the CAT and DPNR (DPF??) needs replacing, apprarently they are clogged. Also they mentioned that they would remove and replace 2 custom pipes as a manufacturer uprgade requirement.

My 2006 T180 has done 65k miles and I am struggling to understand why can't the CAT & DPF be cleaned or similar to cure this problem. Has anyone else on here of anything similar? Do I have any other options?

Thanks for reading.

Ash

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Has your engine ever been replaced under warranty? The CAT and DPNR is combined, these can be bought on ebay for around £400-500 for an OE quality replacement - I would recommend buying the toyota workshop DVD on ebay, its under £5 delivered, its fantastic, i bought one for my IS220d and there are detailed procedures for troubleshooting and replacing the dpf. The other option is to get the DPF removed, the denso ecu cannot be cracked, so a tuner will gut out the dpf and install an emulator for the dcat system - this can be done for aroun £400.

Is the car burning a lot of Oil or using coolant?

Good luck

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Thanks for the reply blackcts.

I have owned the car for nearly 2 years and not aware of any engine replacement by the previous owners.

It has been burning more Oil lately, well more than it should anyway.

Thanks again for the great advice!

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Thanks for the reply blackcts.

I have owned the car for nearly 2 years and not aware of any engine replacement by the previous owners.

It has been burning more oil lately, well more than it should anyway.

Thanks again for the great advice!

No problems buddy, bit of a nightmare for you! Do you know what month your car is registered in 2006? Going by what you are saying about the Oil consumption, this could be the reason why the dpf is blocked - toyota extended the warranty to 7yrs 111k miles - what kind of service history have you?

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I don't know the exact month as i don't have the paperwork to hand but i'm sure it's April 2006. My service history is good, but not all services have been carried out by the franchise dealer

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Unfortunately you are out of the good will warranty period - as said before its not just as easy as changing the dpf, you need to fix the reason why it it clogged, which is more than likely caused by the Oil burning unfortunately. As said before, the workshop cd is your friend, if you are replacing the dpf it gives step by step instructions on toyota repair procedures. I think chances are your dpf is too far gone, if the dealer has done 4 hours worth of diagnostics its likely they would have tried a forced regeneration which has obviously failed.

Kingo @ just to confirm - isnt the dpf and cat 1 combined unit on the 2.2 d-cat?

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Is it possible to steam clean the cat out ? Have thay checked the egr valve , is that blocked 2 ? Frf do my servicing 2

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Find out what exactly what they have done - I'd imagine they would have done a forced regen anyways!

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If the cat/dpnr is shot through burning of Oil it will just happen again... If your car is burning Oil then you surely have to treat the disease not the symptoms .... This is after all Why Toyota adopted the replacement engine programme ... If your car is out of warranty then I'm afraid you have real problems

The so called DPF unit is in Toyota speak the DPNR.. This is a one piece unit and can be I believe cleaned but it success rate is not high and anyway as above you need to address the cause first.

For an in warranty car the service history must be good but Not all Toyota. All they ask is that vehicles have been serviced in accordance with manufacturers guidlines... It does not have to be all Toyota !

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Thanks all again for the views and replies.

Toyota did say they tried to clean it, but to no avail. But I don't think they tried very hard :dontgetit:

My local mobile diagnostics and tuning guy who happens to live next to my parents had the car last night and he managed to turn the 'safe mode' off and run the engine at high revs on the dual carriageway. I have picked the car back up today and all seems to be fixed, the high rev run must have burned the soot out Ok.

My service garage (Toyota specialist - not franchise) doesnt think it is burning Oil because I have only topped a litre up outside of Oil changes in the last 2 years.

He seems to think that the frequent short journeys that the car does has caused the DPF to get sooted up.

I have recently filled the tank with Diesel & used a DPF cleaner (Wynn's Gold). I'm going to make sure this car does at least one long run per week from now on as well as DPF cleaner every 3k miles or so.

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DPF cleaner is generally pretty worthless; It'll be burned long before it gets to the exhaust manifold! Long loaded runs to get the exhaust really hot are the best thing for igniting the soot in the DPF!

I use that as an excuse to go on random joyrides in my Yaris on twisty country roads (4th gear up and down twisty hilly country roads! Woooo! :D)

Great fun on a day like this when you have aircon :naughty:

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I hate to be the harbinger of doom but if your car is burning Oil then any amount of cleaning or use of products is going to be throwing good money after bad.. I really am sorry but that is the reality......

Toyota have spent millions replacing engines in all the range of cars that are fitted with the 2AD series of diesel engines....

If I'm honest my advise to anyone considering buying a car fitted with one of these engines should think long and hard unless of course it has had the engine replaced or is still with warranty with at least a year or more to run... To anyone who has one that is failing OUTSIDE of warranty then the Auctions is the best way out.. Trust me I am not happy giving this advise but what else can anyone do ?

!Removed! shame cos sorted T180 or any other Rav4 really is a cracking car !! Good luck with your one !

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Hi guys - sorry to come into this so late (and, even then, not helping but asking further questions!). I have had a 57 reg Avensis T180 Tourer since it was about 18 months old and apart from the (very) poor fuel consumption - averages under 40 MPG - even when I drive like my granny, it has been more or less trouble free. It is serviced by the book at a Toyota main dealer but nowadays is mostly for short local journeys and the occasional fast run on motorways. I am now getting concerned that I am entering the time frame for potential problems as described elsewhere in this thread - it has been on my mind for a little while now as a friend of mine with the same car (but a year older) had the same problems with his and eventually had to pay a huge bill to get it sorted (he then got rid of the car!). What is this 'additional' or 'goodwill' warranty of 7 years / 111K that is mentioned by blackcts please??

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Hi fellow RAV4 owners,

I have just had some very bad news from FRF Toyota regarding an engine, VSC and 4x4 warning lights and the engine gone into 'Safe Mode'.

After them spending over 4 hours diagnosis they have concluded that the CAT and DPNR (DPF??) needs replacing, apprarently they are clogged. Also they mentioned that they would remove and replace 2 custom pipes as a manufacturer uprgade requirement.

My 2006 T180 has done 65k miles and I am struggling to understand why can't the CAT & DPF be cleaned or similar to cure this problem. Has anyone else on here of anything similar? Do I have any other options?

Thanks for reading.

Ash

Hi Ash. I found some interesting info on how to clean a cat on Youtube. Some Yank suggested either washing the cat out with soapy water or putting 5 ltrs of high grade thinners into half a tank of petrol and running the engine until the next top up. I have no idea if this would work with diesel, but it might be worth a search. Incidentally, if you have a sniff in the can of DPF cleaner, you might find that it is thinners. I had a severe Oil burning problem before getting a recon engine, but the cat was fouled so I bought some Cataclean, and it seemed to me that was just thinners. It worked for a while, but the warning light came on after while so I intend to use the 5ltr thinners option this time.

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Methinks that, with what you are suggesting, your avatar is highly appropriate..............

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Methinks that, with what you are suggesting, your avatar is highly appropriate..............

You insinuating this guy's a fox, Davrav.......?

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Hi guys - sorry to come into this so late (and, even then, not helping but asking further questions!). I have had a 57 reg Avensis T180 Tourer since it was about 18 months old and apart from the (very) poor fuel consumption - averages under 40 MPG - even when I drive like my granny, it has been more or less trouble free. It is serviced by the book at a Toyota main dealer but nowadays is mostly for short local journeys and the occasional fast run on motorways. I am now getting concerned that I am entering the time frame for potential problems as described elsewhere in this thread - it has been on my mind for a little while now as a friend of mine with the same car (but a year older) had the same problems with his and eventually had to pay a huge bill to get it sorted (he then got rid of the car!). What is this 'additional' or 'goodwill' warranty of 7 years / 111K that is mentioned by blackcts please??

Read here....

http://www.toyotaownersclub.com/forums/topic/132178-charliefarlies-guide-to-the-toyota-2ad-diesel-engine-and-its-issues/

Same applies to your Avensis or any other car in the Toyota range if it is fitted with the 2AD series Diesel engine and IS within seven years of age... HTH.

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.......and please, FFS, consult with someone who knows (i.e........not me)........introduce thinners into yer petrol mix?.....nah........

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