Discovery 4 Another D4 engine failure - Page 11





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  1. #201
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    Default Re: Another D4 engine failure

    Quote Originally Posted by zoneout View Post
    Haven't really been following the thread too closely, but....
    1. Spelling mistake was under duress!! In the car stopped on the highway with the trauma of a broken crank in front of me eyes..... Come on man!
    [...]

    Quote Originally Posted by A&B View Post
    Update:

    Ok here it is
    I've decided to let the Disco go (a very difficult decision)
    Well done, I think it was the most rational decision.
    But I still think you should go for a D3 V8

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  2. #202
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Blue Shirt View Post
    Here is a thought:

    It is completely understandable that you decided to sell the car with broken engine.

    However, Mikebob will just repair the car with a new sub, and will have a good running vehicle to use or to sell on to a new owner. His only advantage is that he uses his own labour to create the value that you would have paid for if you had it repaired.

    Situations like these often force one to think emotionally rather than rationally.

    Personally, I am of the opinion that if a car can be repaired economically, it makes sense to do so.
    I think thats the key here, labour especially specialist labour doesn't come cheap. I have seen the same thing with regards to my wood working hobby, I can build myself very nice solid wood furniture that is of much higher quality than the stuff you buy at Ikea or the like, however when I have to add the time and effort spent onto the price of materials most people who were ooing an aaahing about how nice the item was 2 minutes ago would rather go buy the flat-pack chipboard crap from the store.

    So in short, if you have the skill and tools to do the job yourself, then great, go for it, but if you don't the sizeable labour bill will be your downfall...

    '07 VW Touareg (T2) 3.0 V6 TDi (BKS), Air Suspension, Centre and Rear diff locks, DeCAT, 265-65R17 muds
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  3. #203
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Forest Fab View Post


    But I still think you should go for a D3 V8
    From a D4 to a D3?
    What will he lose out on specs wise?
    Always think: Could this be sarcasm?

  4. #204
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Oppies3800 View Post
    From a D4 to a D3?
    What will he lose out on specs wise?
    What will he win in reliability?

    That's the problem these days, if you're not willing to "downgrade", you're stuck if you start too high. Luckily, the banks are always willing to lend you money and hold you by the balls.

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  5. #205
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Forest Fab View Post
    What will he win in reliability?

    That's the problem these days, if you're not willing to "downgrade", you're stuck if you start too high. Luckily, the banks are always willing to lend you money and hold you by the balls.
    A lot... but, might as well go D4 then?
    Always think: Could this be sarcasm?

  6. #206
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    Default Re: Another D4 engine failure

    In my humble opinion the D4 seems to have much less little snags than the D3 I had. They seem to have sorted a lot of the issues like suspension compressor, torque converter clutch, diff issues etc.

    As for the specification I think its more cosmetic other than the reliability issues they sorted.

  7. #207
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Forest Fab View Post
    What will he win in reliability?

    That's the problem these days, if you're not willing to "downgrade", you're stuck if you start too high. Luckily, the banks are always willing to lend you money and hold you by the balls.
    Probeer jy s n D3 is baie meer reliable as n D4?
    Vrywaring: Niks wat ek hier kwyt raak moet hoegenaamd as feite beskou word nie.

  8. #208
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    Default Re: Another D4 engine failure

    a RRS supercharged is also an option if you don't need 7 seats.

    those Jag V8s are bulletproof
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  10. #209
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    Default Re: Another D4 engine failure

    .
    Last edited by Forest Fab; 2018/01/26 at 01:29 PM. Reason: double post

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  11. #210
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Oppies3800 View Post
    A lot... but, might as well go D4 then?
    Based on his budget, a D3 will be easier to find.

    Quote Originally Posted by Reenen View Post
    Probeer jy s n D3 is baie meer reliable as n D4?
    No, I'm saying that the V8 will be more reliable than the TDV6.

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  12. #211
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Oppies3800 View Post
    From a D4 to a D3?
    What will he lose out on specs wise?
    What he will lose in Spec, he will gain in sleep

  13. #212
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    Default Re: Another D4 engine failure

    He has 2 x defenders

    a D2 V8 with center diff and traction control is all he needs if he needs luxury
    2012 Jeep Sahara Unlimited 3.6 V6
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  14. #213
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    Default Re: Another D4 engine failure

    This is very sad indeed. A&B is my brother and i gave him some advice on what to do with the disco. But knowing all the cost involved and amount of work to fix it is just as sad as the break down next to the road itself.
    He bought that disco from Land Rover brand new and had it services from LR till 150000km. Most of the mileage was long distance trips. I did some research on that specific problem and found that its a common problem on all Disco 4's from 2009 - 2012. Apparently the main bearings was not properly installed.
    So i guess that the main bearing does not have a locating pin and they work themselves loose after some time causing the bearing to spin and break the crank.
    So my questions is, how can a company like Land Rover make a mistake like that ? How does it pass quality control ? How do they test the engine after it has been designed and built ? Any good manufacturer put their new engines on a test bench and test the s**t out of it. They even test their cars in extreme conditions like very hot country's etc. So to me it looks like that the owners must test the engines at their own expense. Then only after some complaints then they will re design the engine. But LR still dont take responsibility.

    The other question is why didnt LR contacted all Disco 4 (2009 - 2012) owners to do a call back ? Especially when the owners bought the discos new from LR agents? Clearly there is a design fault in that engines.
    Apparently LR fixed that problem from the 2012 models upwards.

    The Disco could easilly cost him up to R200 000 and dont forget that he also had to pay money to stay over in a guest house and rent a car to get them home and pay the R10500 to get the car to his place if he decided to repair.

    Personally if i were him i would never drive a Disco again and Land Rover will get a piece of me for sure. But thats just me.
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  16. #214
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    Default Re: Another D4 engine failure

    Would have loved to get feedback on this from someone who works at Land Rover. Someone high up.
    Volkswagen Jetta 1.9 Tdi, 2002
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  17. #215
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    Default Re: Another D4 engine failure

    Nothing ?
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  18. #216
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    Default Re: Another D4 engine failure

    Dieselman, according to LR there is no problem. Engine bombs within warranty, free replacement. After warrantee most brands will shrug it off as bad luck.
    Always think: Could this be sarcasm?

  19. #217
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Oppies3800 View Post
    Dieselman, according to LR there is no problem. Engine bombs within warranty, free replacement. After warrantee most brands will shrug it off as bad luck.
    Not true. There is a problem on those certain models (2009 to 2012)

    Please read the link below vvv


    https://www.iol.co.za/motoring/cars/...engine-1925479
    Last edited by Dieselman; 2018/01/28 at 02:26 PM.
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  20. #218
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    Default Re: Another D4 engine failure

    That is why LR have an unofficial extended warranty if you stay servicing in their network.

  21. #219
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    Default Re: Another D4 engine failure

    I believe that the LR assistance plan is limited to 240 000 km's and 7 years
    Off course I fell out of the 240k and 7 years

    A&B

  22. #220
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    Default Re: Another D4 engine failure

    Quote Originally Posted by Dieselman View Post
    This is very sad indeed. A&B is my brother and i gave him some advice on what to do with the disco. But knowing all the cost involved and amount of work to fix it is just as sad as the break down next to the road itself.
    He bought that disco from Land Rover brand new and had it services from LR till 150000km. Most of the mileage was long distance trips. I did some research on that specific problem and found that its a common problem on all Disco 4's from 2009 - 2012. Apparently the main bearings was not properly installed.
    So i guess that the main bearing does not have a locating pin and they work themselves loose after some time causing the bearing to spin and break the crank.
    So my questions is, how can a company like Land Rover make a mistake like that ? How does it pass quality control ? How do they test the engine after it has been designed and built ? Any good manufacturer put their new engines on a test bench and test the s**t out of it. They even test their cars in extreme conditions like very hot country's etc. So to me it looks like that the owners must test the engines at their own expense. Then only after some complaints then they will re design the engine. But LR still dont take responsibility.

    The other question is why didnt LR contacted all Disco 4 (2009 - 2012) owners to do a call back ? Especially when the owners bought the discos new from LR agents? Clearly there is a design fault in that engines.
    Apparently LR fixed that problem from the 2012 models upwards.

    The Disco could easilly cost him up to R200 000 and dont forget that he also had to pay money to stay over in a guest house and rent a car to get them home and pay the R10500 to get the car to his place if he decided to repair.

    Personally if i were him i would never drive a Disco again and Land Rover will get a piece of me for sure. But thats just me.
    Hi Dieselman

    it really is a very sad affair indeed.

    your comments in red

    1. The problem is evident up to 2016 models as documented ad nauseum in Disco3.co.uk and Disco4.co.uk.

    2. No the problem was not fixed in 2012.

    There were actually four separate issues causing engine failures on the TDV6's:

    1. Plastic thermostat housing cracking open = new sub
    2. Oil Pump housing crack at the tensioner pulley mount = new sub (very often snapped crank here as well)
    3. Oil pump taking too long to build up pressure from cold = rotating bearings = new sub
    4. Snapped crank with bearings intact (mainly on TDV6 3.0 and SDV6)

    The oil pump problems started with introduction of MY2007 - MY2009 (up to 9A510121), when a drastically modified oil pump was introduced, which fixed the cracking oil pump housings and the delay in building up pressure.

    As a result of this, the only way to prevent premature engine failures is/was to change those oil pumps at very earliest opportunity, an advice which I have been documenting on this forum as early as 2012. This together with a frequent change in plastic thermostat housing (about every 80K 100K kilometers) is the only way to minimise engine failures.

    Crank snaps cannot be prevented by any means, as they are the result of a QC issue with component suppliers to the assembly line. This is also the reason, why very reputable motor engineers such as CME now refuse to rebuild these motors.

    Hope this explains the issues your brother has been encountering.
    George Bosch
    2003 RangeRover Vogue 3.0 Td6 (Mine) / 2005 LR Disco3 TDV6 S (Swambo's) / 1998 Disco1 Tdi ES (Sold) / And some more serious stuff

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