ricric
Member Since: 27 Nov 2005
Location: Somerset
Posts: 85
  
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I've been getting between 27 and 28 mpg in my auto diesel. I cannot say I've noticed a power loss problem as I've had this trouble basically since I first picked it and noticed the 'fault' notice after 20-30miles I guess I'm used to the power my disco gives out but it will be interesting to see what it's like after the turbo has been replaced.. Zambezi Silver SE / Ebony Leather
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 5th Jan 2006 9:30 pm |
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steveho
Member Since: 07 Jan 2006
Location: lincoln
Posts: 74
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could be the variable nozzle turbo intermittently seizing (new turbo)or a fuel temperature sensor or egr issue which can be solved with the 'very latest' engine software download.The 'p code' which would have been stored in the power train control module will tell them what avenue to explore.
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| 7th Jan 2006 10:24 pm |
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adara
Member Since: 14 Nov 2005
Location: Eastern Europe
Posts: 152
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Had the engine system fault error, had the turbo replaced and now I am having 19-20 mpg. I'm convinced the turbo replacement is responsible for the low mpg. Dealer denies this though...
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| 7th Jan 2006 11:00 pm |
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ricric
Member Since: 27 Nov 2005
Location: Somerset
Posts: 85
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they tried the very latest system update but the intermittnet fault continues - a new turbo is on order (1-2 weeks)! Zambezi Silver SE / Ebony Leather
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| 8th Jan 2006 8:37 am |
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AN
Member Since: 26 Jul 2005
Location: Hungary
Posts: 327
 
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I had engine system fault error twice within one week, ignition off/on sloved it. I took the car to the dealer and I was told that it was a software problem with the fuel temperature sensor. Somehow there was communication error and the car thougth that the fuel temp. is critical and reduced the engine power. New software got uploaded and according to the dealer this should solve the problem (this is same remedy as per Steveho post). Also I was told this is a usual problem on the early built cars (mine is Oct 2004)
In the process I got a software update on the instrument cluster as well, the new software is putting a "i>" (little i and arrow) just above the line which divides the Message Center display.
Regards, AN LR D3 S Black, Auto TDV6
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| 9th Jan 2006 8:18 am |
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Winger
Site Moderator
Member Since: 15 Feb 2005
Location: UK
Posts: 3428
 
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As I have posted elsewhere, communication errors between control modules - either missing or mistimed messages (often due to voltage issues) - will throw up false warnings. If you have a problem that consistently occurs, regardless of how many times the vehicle has been switched off and powered down (which is important; just turning off and restarting may not fix the "error"), then it is likely to be a genuine, physical problem.
Obviously some problems, like a failed turbocharger, are relatively obvious; some of the other engine management system errors may be less so.
If you have had an error message, and this message has never presented itself again, then an electronic glitch is most likely to be the cause - and, in turn, this does not mean that there is anything wrong with the software....it may be as simple as the reporting ECU not receiving a timely signal from another part of the system.
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| 9th Jan 2006 9:43 am |
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ricric
Member Since: 27 Nov 2005
Location: Somerset
Posts: 85
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My feeling is that it could indeed be an intermittent dodgy connection but as it recurrs the dealers have via LR been advised to change the turbo. Maybe this is unnecessary but it's difficult to know what's best and going along with LR and the dealer (in replacing the turbo) seems the best choice Zambezi Silver SE / Ebony Leather
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| 9th Jan 2006 9:55 am |
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Piero
Member Since: 10 Jan 2006
Location: SW London
Posts: 54
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Hi people, new Disco owner here! Very interesting discussion, well my car is now 2 days and 90 miles old and has already displayed the dreaded Engine System Fault message about 6 times, today she was stripped down in the thought that there might be a loose connection in the turbo as the diagnostics suggested a boost problem. Anyway the problem is still there so I limped home in reduced engine power mode!!
Can't believe I spend all this money and thats what I get in return!!
Seems from other people's experiences that the turbo is in fact the culprit.
Fingers crossed they can sort my car! 2006 TDV6 SE
Buckingham Blue/Alpaca
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19 Inch Alloys
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| 10th Jan 2006 7:39 pm |
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angrd020
Member Since: 14 Dec 2005
Location: Branford
Posts: 148
  
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Does your vehicle seem underpowered? Was your test driving only in this LR3?
ALR 2005 Tonga Green Land Rover LR3(Yes I wheel it!!!)
2002 Shale Green Jeep WranglerX(Yes I wheel it!!!)
1994 Red Jeep Cherokee (Use it as a spare vehicle)
DO IT! DO IT NOW!!!
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| 10th Jan 2006 8:52 pm |
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Piero
Member Since: 10 Jan 2006
Location: SW London
Posts: 54
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After the fault message appears the engine power is decreased by the ECU, this is what the car should do in the event of an engine fault....as mentioned in the handbook. This was not a testdrive but my own new vehicle.  2006 TDV6 SE
Buckingham Blue/Alpaca
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Adaptive Xenons
19 Inch Alloys
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| 10th Jan 2006 8:55 pm |
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Winger
Site Moderator
Member Since: 15 Feb 2005
Location: UK
Posts: 3428
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The next time that a fault message appears, as long as it is convenient, drive the car, without turning it off in the interim to the dealer, and present it to them in that state. Because it has flagged a warning to you, a fault code must have been raised too.
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| 10th Jan 2006 9:03 pm |
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tucker_j
Member Since: 01 Oct 2005
Location: England
Posts: 203
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Winger wrote:The next time that a fault message appears, as long as it is convenient, drive the car, without turning it off in the interim to the dealer, and present it to them in that state. Because it has flagged a warning to you, a fault code must have been raised too.
It won't do you any good. My boss drove his RRS to the dealer first thing one morning when an error occured. Sat outside for 45 mins with the engine running until the workshop staff arrived. They drove it into the workshop, turned the engine off, connected to test book and couldn't find the fault. Apparantly the vehicle has to be off before you can connect it to test book
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| 11th Jan 2006 7:10 pm |
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Piero
Member Since: 10 Jan 2006
Location: SW London
Posts: 54
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Well the Engine System Fault was gone for a couple of days but this morning it reared it's ugly head!!! Got her booked into Guy Salmon's in Kingston on Monday so hopefully they can sort it....they should be able to retrieve the fault if they know what they are doing with the diagnostics...hate intermitent faults, they're the worst!
Apart from that I have enjoyed the first week of ownership, the adaptive Xenons are awesome  2006 TDV6 SE
Buckingham Blue/Alpaca
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Adaptive Xenons
19 Inch Alloys
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| 13th Jan 2006 7:49 pm |
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steveho
Member Since: 07 Jan 2006
Location: lincoln
Posts: 74
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To clear a few misunderstandings up in relation to the 'turbo fault',when the engine management fault comes on the display and is coupled with a severe loss of power if it is the turbo that is at fault it will always log one or more of four particular fault codes which indicate an overboost/underboost situation.what is happening is a seizing situation of the variable nozzle actuator mechanism of which the only repair is a replacement turbo-cycling the ignition can often rectify it for a short while because this puts the turbo in a 'self test 'mode which works the actuator a few times and can have the effect of freeing it off.The chances of an electrical/connection issue to the turbo are very slim indeed.
If WDS (t4 diagnostic system) indicates different fault codes in the power train control module to those that relate to a boost problem then the root cause lays elsewhere.
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| 13th Jan 2006 10:05 pm |
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Piero
Member Since: 10 Jan 2006
Location: SW London
Posts: 54
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Let's see what the dealer says, each time the warning has come up I have been on boost ie accelerating, it always happens after the car has been running for over 15mins and normally in 5th/6th gear. There is a severe loss of power, I dont know whether the vehicle is programmed to do this or it is a result of the problem encountered. What's strange is that each time the fault has arisen, when I stop there is a horrible burning smell....keep in mind that the car has 200 miles on the clock and I still have yet to use more than 2500rpm!!!
I just hope they can diagnose the fault, I don't want the whole "we don't know what it is" or "are you driving it properly" scenario. 2006 TDV6 SE
Buckingham Blue/Alpaca
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Adaptive Xenons
19 Inch Alloys
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| 14th Jan 2006 12:08 am |
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