AlbertoMarin00
Member Since: 14 Nov 2023
Location: Burgos
Posts: 19
  
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| Sell my Disco 3, buy a Disco 4? |
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Hello to all.
I've been thinking about my 2007 Discovery 3 this week. It has 180,800 miles on it. The engine has 25000 miles on it, it was replaced by the previous owner. Since I've had it, I've changed suspension arms, turbo, HPFP twice (one was faulty), two EGR, and fuel rail with sensor as it was also failing. I bought it last year for 15.000€ and I will have invested about 10.000€ between maintenance, breakdowns and tyres, all in official dealer. It's a Discovery 3 automatic, prepared with underbody protection, winch, long range headlights, roof rack, transmitter, suspension control unit, spacers, etc. When it works it goes very well and is very comfortable, but lately all the faults are coming back, giving me the code P0087, P000E, and P2290, sometimes intermittent, sometimes permanent. When I clear them, it works again and I can make 60-80km trips without failure, they only appear very occasionally after driving in the countryside or long distances. I'm tired of these faults, and I don't know if it's the HPFP fault again, if this time it's the LPFP, some injector or some return of the injectors. I was thinking of taking it off my hands and buying a 2009 Discovery 4, standard, no preparation, with the 3.0 245 hp engine and 100,000 miles. Maintained in official service, with new compressor and new front air springs. I would pay 22.000€ for it, subtracting what they would give me for the Discovery 3.
Would you see it as a good decision? Would I get into another car full of faults, or have the fuel pump and pressure problems been solved in the D4? I'm not too afraid of the crankshaft, I usually change the oil every 6,000 miles and I use Ravenol oil, so I would take the utmost care of this aspect.
Thanks to all.
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 4th Sep 2024 11:17 am |
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loanrangie
Member Since: 18 Jun 2017
Location: Melbourne
Posts: 699
  
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You should be wary of the crankshaft, even more frequent oil changes doesn't diminish the risk of failure.
As much as i like the D4 i wont be upgrading anytime soon as my D3 has given me very few issues in the 7 years i've owned it and its never been to a dealer or workshop.
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| 5th Sep 2024 6:33 am |
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grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6400
 
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reading on crank failures it appears most took place due to very extended oil change periods and oil dilution issues associated with it
our D4 is 9 years old runs strong at almost 100K miles and purrs like a kitten on 5W40 C3 dpf oil
go for it a lot of D3 also suffered crank failure so nothing to loose
I would use engine flush and change oil right after purchase making sure you start your servicing with good oil in it
I am also changing oil around 6-7 K
G
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| 5th Sep 2024 8:13 am |
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loanrangie
Member Since: 18 Jun 2017
Location: Melbourne
Posts: 699
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If you are lucky you wont have a drama but unless you owned it from new and have done earlier oil changes its still a roll of the dice.
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| 6th Sep 2024 4:09 am |
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grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6400
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i own ours from new, had few issues like they all do byt still pulls strong when u boot it on German autobahn so i think it will be OK 
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| 6th Sep 2024 1:41 pm |
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