D5 owners (or prospective owners), read this

[Nicky]

133527

[scarry]

There is heaps about this on another thread.

So if the oil dilution detection system fails,there goes an engine....[bigsad]

Washing fuel into the cylinders as part of normal DPF operation doesn't seem good for the bores and rings either.

We have a Tojo work van with DPF,has about 50000K on it and no issues at all.

Just does the regen every so often by itself,sometimes upping the idle.

[Tins]

133527

16-17 MY Jaguar Land Rover vehicles? What, all of them?

[GP1200]

Reading the UK Land Rover forum threads, it claims that LR have pulled this bulletin, as it been doing the rounds on the internet and would no doubt been causing them some grief.

I”m really hoping they have pulled the bulletin because they have solved the oil dilution issues,
but I doubt it.....

my new D5 arrives in late January/ early February, any ideas what to do?

[Geedublya]

If you are not driving short trips and let the DPF regen complete its cycle you will be OK. Most of these problems come from short trips. If possible run an additive which will assist combustion helping prevent the DPF from doing a regen as often.

[MadAndy]

Interesting read, my discovery arrives late January and will be travelling around this big country of ours
hope I made the right choice

[incisor]

you have to treat a Diesel engine differently to a petrol powered vehicle and many people don't or are unaware that they should.

as stated above this should really only affect vehicles that only ever do short runs and never pull a load as they will clog a DPF quickly.

pulling a decent load regularly ensures the DPF gets a good clean out and ensures the bores don't glaze excessively in my experience.

high revs on a diesel motor alone, does not load the burn cycle. pulling a heavy trailer, pulling a van or a horse float does.

as with the earlier Diesel engines if the vehicle is never loaded then you should use something like Cost Effective Maintenances FTC DEcarbonizer (https://costeffective.com.au/product/ftc-decarbonizer/)

i used it on my late model VW with DPF and i had none of the issues many others had with the DPF setup.

i also use it in 2 @ 300TDi powered land rovers as they tend to glaze their bore if not used to pull a decent load on a regular basis.

it does make a significant difference and is a far superior product to the others i have tried over the years.

my 2c

[shanegtr]

If you are not driving short trips and let the DPF regen complete its cycle you will be OK. Most of these problems come from short trips. If possible run an additive which will assist combustion helping prevent the DPF from doing a regen as often.
That would depend on how the regen activation is triggered. Some may trigger on fuel burn, some may be on DPF differential pressure etc.... If its monitored from an actual differntial pressure sensor setup then yes you could in reduce the DPF regen cycles. If its calculated from a fuel burn rate from the manufacturer then it most likely wont make much difference as they will do a regen for whatever its been calculated/programed to do

[Geedublya]

That would depend on how the regen activation is triggered. Some may trigger on fuel burn, some may be on DPF differential pressure etc.... If its monitored from an actual differntial pressure sensor setup then yes you could in reduce the DPF regen cycles. If its calculated from a fuel burn rate from the manufacturer then it most likely wont make much difference as they will do a regen for whatever its been calculated/programed to do


I didn't realise that some regen on fuel burn my only experience is differential pressure. Hopefully fuel burn is mainly on commercial vehicles (ie. trucks) as I haven't heard of it being used on passenger vehicles.

[PAT303]

Interesting read, my discovery arrives late January and will be travelling around this big country of ours
hope I made the right choice

Do a google search,every make has issue's with regen because people won't operate them properly.All modern vehicles need time to regen,it's no more difficult than a 30 minute drive at operating temps or a quick blast down the highway. Pat

[MadAndy]

Thanks Pat I burtenyly drive a diesel Jeep GC which is great but needed to change and liked the new LR Discovery I usually change my oil every 10000 km so have not had much to do with iop dilution issues so being told that the new discovery is 26k between services was great but was intendending to do pull changes more often then reading about this issue with done reporting having this issue with less than 6k from new I was a little concerned
thanks

[SBD4]

....being told that the new discovery is 26k between services was great.....
I've never adhered to this in the 7 years of owning a vehicle with the 3.0l V6. I have always done an "interim" service at 13K to have the fluids done. I think the dealers call this a "health check".

I am sure you'll be fine.

Adhere to the running in guidelines :
Land Rover Owner Information (http://www.ownerinfo.landrover.com/document/3D/2017/T19962/22219_en_GBR/proc/G1804713)


The vehicle is built using high-precision manufacturing methods, but the moving parts of the engine must still bed-in, relative to each other. The process occurs mainly in the first 3 000 km of operation.

During this running-in period of 3 000 km, observe and follow the instructions below:


Do not fully press the accelerator pedal during starts and normal driving.


Avoid high engine speeds (rpm) until the engine has reached its full operating temperature.


Avoid labouring the engine by operating the engine in too high a gear at low speeds.


Gradually increase engine and road speeds.


Avoid continuous operation at high engine speed and abrupt stops.


Avoid frequent cold starts followed by short-distance driving.


Preferably take longer journeys.


Do not participate in track days, sports driving schools, or any similar events.

Also, understand what is required for the DPF to do it's regen:
Land Rover Owner Information (http://www.ownerinfo.landrover.com/document/3D/2017/T19962/22219_en_GBR/proc/G1904948)


Diesel vehicles equipped with a Diesel Particulate Filter (DPF) have more efficient emissions control. The particles in the exhaust gases are collected in the exhaust filter during normal driving.Cleaning of the exhaust filter is also known as regeneration. The cleaning occurs automatically, approximately every 300 to 900 km, depending on driving conditions, and requires the engine to reach its normal operating temperature.Self-cleaning takes place when the vehicle is driven steadily at speeds between 60 km/h and 112 km/h (37 mph and 70 mph). The process normally takes 10 to 20 minutes. Self-cleaning can occur at lower vehicle speeds, but the process may take a little longer at a 50 km/h (30 mph) average speed.


Some driving conditions may not provide sufficient opportunity to begin the exhaust filter self-cleaning automatically. For example, frequently driving short distances in slow-moving traffic or in cold weather. When this occurs, the instrument panel displays a warning icon, depending on status, as follows:


Amber: Exhaust filter self-cleaning is required. Driving above 60 km/h (37 mph) for 20 minutes should clean the filter.
Green: Exhaust filter self-cleaning is complete.
Red: The exhaust filter is full. Contact a retailer/authorised repairer as soon as possible.

[scarry]

Off topic a bit,but the diesel Hi ace we have had for the last year and a half,regens automatically when ever it needs to.It is noticeable when it does it.It also has a DPF gauge and push button switch,to use once the gauge says it needs a regen.

As the vehicle is a work vehicle,on the road all the time,the manual regen switch has never been needed.

[PAT303]

Off topic a bit,but the diesel Hi ace we have had for the last year and a half,regens automatically when ever it needs to.It is noticeable when it does it.It also has a DPF gauge and push button switch,to use once the gauge says it needs a regen.

As the vehicle is a work vehicle,on the road all the time,the manual regen switch has never been needed.

Problem is many privately owned vehicles do short 3km trips to school or the shops,if they were used like your vehicle the problem wouldn't occur. Pat

[scarry]

Problem is many privately owned vehicles do short 3km trips to school or the shops,if they were used like your vehicle the problem wouldn't occur. Pat

Correct,but what does the manufacturer do?

All they want to do is sell,sell,sell.

They can’t start telling customers that this vehicle doesn’t seem to suit their needs,because of the around town usage,they may have issues.

I definitely wouldn’t want the high costs or the inconvenience of taking it to the dealer every few thousand km for an oil change.