Marius's Touareg R5 life thread. - Page 46




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  1. #901
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    I agree on the turbo thing. Low as possible temps and decent oil and there is no reason why they should not go the distance of the engine
    LC 78 Troopie 1HD-FTE

  2. #902
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    So at what mileage should I gut my cat? I've got 100k now, 5.4 years old. Last 50k km's virtually only 50 ppm.
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
    2008 Audi A4 B8 2.0 TDI (Multitronic)
    2009 KTM 990 Adventure (Daily Commuter & Weekend Fun)
    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 50% of the time.


  3. #903
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    i hear that most cats need replacing at 100k kms. they say in america at 100k miles.
    alot depends on how you drive. idling like a taxi all day, open road petrol or diesel.
    some vehicles, like some merc's and porsches have the cats half way down the exhausts, some cars, like the renaults have them literally within 10 inches of the turbo, so residual heat is huge.
    the smaller the capacity the engine, the closer the turbo needs to be the exhaust valves, and yet i have heard and read of a cat melting on a lamborghini 1000miles from new even though its got no turbo, so, heat is needed in the cat to ensure correct readings ore given of the exhaust mixture. So the closer it is to the turbo, and the more clogged up it gets, the shorter your turbo life.
    i say its cheaper to replace the cat at 6k than a turbo at 20k. cheaper to get rid of the cat. the turbo spools up quicker and the exhaust gas has free'er flow and so runs a bit cooler.

  4. #904
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    Quote Originally Posted by Kortgat View Post
    So at what mileage should I gut my cat? I've got 100k now, 5.4 years old. Last 50k km's virtually only 50 ppm.
    V6 TDi engines aren't known to fail so you may be OK, but if you have the itch..... have it done!

    Problem is I suspect the V6 TDi has post CAT sensors that will need fooling or need to be mapped out.

  5. #905
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    I am not going question the Volla engineers they know much more than I do. But I have build a few high power engines. Steam holes form a critical part of cooling. It is evident that the front and rear pistons short steam holes in the marked areas. When fitting high performance aluminum heads to v8 blocks these steam holes needed to be drilled if they does not have it as standard. Just picked up something else those adjacent cylinder sleeves are almost fused together. Most other engines has water passages between the sleeves. Sure not the best design for max cooling.
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    Last edited by grips; 2013/03/12 at 07:18 PM.
    It is not what you buy its what you build.

  6. #906
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    I am adding a very very poor cell phone pick of a Mercedes Sprinter diesel cooling cavities and steam holes to show what I meant in my previous post. This engine is stored in a way which make taking pic`s very difficult.
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    It is not what you buy its what you build.

  7. #907
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    point taken but that was not the area of failure. The failure was on the turbo side of the piston.

  8. #908
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    Quote Originally Posted by MariusFourie View Post
    point taken but that was not the area of failure. The failure was on the turbo side of the piston.
    marius, let me spend a morning with you, if we can get a thermometer , and by logic and electronics and past knowledge and wisdom, work out why number 5 dies

  9. #909
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    Another spanner in the works here... EGR blanking & heat:

    http://en.wikipedia.org/wiki/Exhaust_gas_recirculation

    By feeding the lower oxygen exhaust gas into the intake, diesel EGR systems lower combustion temperature, reducing emissions of NOx. This makes combustion less efficient, compromising economy and power.
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
    2008 Audi A4 B8 2.0 TDI (Multitronic)
    2009 KTM 990 Adventure (Daily Commuter & Weekend Fun)
    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 50% of the time.


  10. #910
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    Quote Originally Posted by Kortgat View Post
    Another spanner in the works here... EGR blanking & heat:

    http://en.wikipedia.org/wiki/Exhaust_gas_recirculation

    By feeding the lower oxygen exhaust gas into the intake, diesel EGR systems lower combustion temperature, reducing emissions of NOx. This makes combustion less efficient, compromising economy and power.
    Reading that quickly people will fear for high EGT but RELAX!

    On a diesel EGR is only used at part throttle where there is excess air and only a bit of diesel injected so EGT is not high anyway.

    At WOT where EGT is highest the EGR is not introduced at all.

    What does this mean? Your max EGT on a given trip will be the same whether you have EGR blanked or not.

    Spanner in the works is as follows. EGR gasses like to mix with the CCV gasses and make a sticky black mess in the intake that restricts airflow (just google image EGR buildup). That restriction in the intake will allow less air in which richens the mixture - that in turn leads to high EGT on a diesel engine!

    I for one will keep my EGR disabled, thank you very much!

  11. #911
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    Just find the pipe and insert a tee?
    2006 Touareg R5 - SPORTSVANS body lift, Alpine Type R sound system:
    http://4x4community.co.za/forum/show...ouareg+stealth

    2010 Volvo XC60 D5 R Design
    2013 Polo Vivo traffic mobile
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  12. #912
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    Quote Originally Posted by Wedgy View Post
    Just find the pipe and insert a tee?
    correct

    pull this pipe off
    put screw into pipe

    no vagcom required

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  13. #913
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    Shot. Its raining now, so tomorrow's job.
    2006 Touareg R5 - SPORTSVANS body lift, Alpine Type R sound system:
    http://4x4community.co.za/forum/show...ouareg+stealth

    2010 Volvo XC60 D5 R Design
    2013 Polo Vivo traffic mobile
    2012 Husaberg TE300


  14. #914
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    Quote Originally Posted by Wedgy View Post
    Shot. Its raining now, so tomorrow's job.
    Scared you will melt?

    It's a 60 second job!

  15. #915
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    No, took the Treg to Franky the other day, and someone left the key in the ignition, and locked the door somehow. I had to climb in through the rear door and over the centre bit, managed to break the sole off my shoe a bit. So no, i do not want wet sockses.
    2006 Touareg R5 - SPORTSVANS body lift, Alpine Type R sound system:
    http://4x4community.co.za/forum/show...ouareg+stealth

    2010 Volvo XC60 D5 R Design
    2013 Polo Vivo traffic mobile
    2012 Husaberg TE300


  16. #916
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    OK precious. You keep sockses dry and watch out for orcses when it gets dark!

  17. #917
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    Thank you for the clarification Marius... so I'll be blanking my EGR then. Wonder if it's as easy on the V6.

    Won't that EGR valve then suck unfiltered air? Should but a little filter on it. I guess blocking it can cause issues?
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
    2008 Audi A4 B8 2.0 TDI (Multitronic)
    2009 KTM 990 Adventure (Daily Commuter & Weekend Fun)
    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 50% of the time.


  18. #918
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    Quote Originally Posted by Kortgat View Post
    Thank you for the clarification Marius... so I'll be blanking my EGR then. Wonder if it's as easy on the V6.

    Won't that EGR valve then suck unfiltered air? Should but a little filter on it. I guess blocking it can cause issues?
    V6 is electronic so mapping/tuning is required.

    EGR won't suck anything. If you pull that vacuum pipe off it prohibits the valve from opening and letting exhaust gasses into the intake.

  19. #919
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    EGR blank video uploading

    Check back in an hour or so and it should be live


  20. #920
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