Member Since: 02 Nov 2016
Location: Surrey
Posts: 1047
Gary_P wrote:
My car showed overfilled at the end of last year after having been fine (showing full) for 5 months since servicing. I put it down to incomplete regenerations to clear the DPF where the extra diesel ends up in the oil. We had done quite a few short journeys through the summer. Had oil and oil filter changed. Indy agreed it was pretty likely that it was that. It was fine afterwards and has been since, so not a sensor fault.
Couldn’t find the oil dilution service setting/change on the diagnostic so just reset the whole service setting as it will be done at 12m full service interval. The oil dilution indicators are just a calculation so not too much help, but the obvious ‘overfilled’ indicator is a tell tale sign.
I’ve bought a pump now and plan an end of year oil and filter changes now because of this.
Good to hear it was a one off occurence, I'll be checking much more often once I have changed the current oil.
I am a bit concerned I may be dumping £70 worth of oil every couple of months.Just 'cause you got the power... that don't mean you got the right.
19th Apr 2023 12:43 pm
ClassikFan
Member Since: 02 Nov 2016
Location: Surrey
Posts: 1047
M3DPO wrote:
ClassiKFan:
I wouldn’t even start it up with oil diluted like yours. You can always check the level with my well proven dipstick method, if only to confirm your reading is accurate, if the contamination is fuel it will work like an oil flush cleaner, this cleans all the sludge off the internals of the engine and mixes with the oil and in bad case blocks the oil filter, you won’t know it’s blocked because the system has a saftey bypass, don’t forget the oil can also be diluted with water although there will be other symptoms. :thumbs up:
100% M3DPO I'm not starting the engine until it has a new filter and oil.Just 'cause you got the power... that don't mean you got the right.
19th Apr 2023 12:49 pm
Disco4Chris
Member Since: 11 Oct 2022
Location: Reading
Posts: 36
Disco4Chris wrote:
I've had pretty much the same experience!
I bought my D4 in November last year and the oil level was reading OK and now it's reading overfilled. I understand it could be oil contamination in the sensor.
It's being services in a couple of weeks, so we'll see what happens then!
I had to go to the office today (24 miles) and on the way experienced a 'Restricted Performance' moment. Anyway, before I left the office to come home I checked the oil level and the reading is back to 'OK' and the level is showing at max.
I had done a quite a few of very short journeys recently so maybe that was the problem. I'll be checking regularly and see if it re-appears.Cheers
Chris
1999 D2 TD5 Manual
2015 Discovery 4 SDV6 HSE Luxury
Member Since: 02 Nov 2016
Location: Surrey
Posts: 1047
I sucked out 1.2 litres and the gauge now reads one segment below full.
New oil should arrive tomorrow and I’ll drain the engine and refill with the correct amount.
Maybe I’ll leave it one segment from full so I can monitor if it goes up without becoming over full.Just 'cause you got the power... that don't mean you got the right.
20th Apr 2023 7:40 pm
ClassikFan
Member Since: 02 Nov 2016
Location: Surrey
Posts: 1047
Oil pumped out and replaced with fresh Magnatec. Will be keeping a
closer eye on the level in future.Just 'cause you got the power... that don't mean you got the right.
24th Apr 2023 5:11 pm
Moo D3 Decade
Member Since: 13 Aug 2010
Location: UK
Posts: 14389
Fingers crossed. New Defender L663 110 SE (known as Noddy!)
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
24th Apr 2023 6:38 pm
s60r
Member Since: 14 Mar 2021
Location: West Sussex
Posts: 287
I got a little OCD with my D4 before I sold it.
I would check the oil prior to every start up each day and always park it flat overnight prior to the check. I just didn't trust that gauge! lol
I don't suggest a check every single start up!........ at least weekly though! The modern diesel engine is a swine for diluting its oil.A mod a week until I have nothing to improve or add.
25th Apr 2023 4:23 pm
urhunden
Member Since: 15 Jan 2010
Location: Stockholm
Posts: 813
Fine with dilution.
my D4 3.0l MY2011 drinks oil. 1 ltr every 3500kms. Oil goes into intercooler. No smoke from exhaust
Cannot find why.
Could it be the crankcase ventilation. But which part.
Desperate for help.Discovery 4, MY2011, TDV6 Auto
Discovery 4, MY2013, SDV6 Auto
26th Apr 2023 11:28 am
Rotara
Member Since: 02 Mar 2021
Location: UK
Posts: 59
Hi everyone, Recently experienced a similar issue. I had done a full service on my D4 in February at an independent. I check the oil level usually once or twice per week, everything has been spot on. However, in the last few weeks, I've experienced the 'overfilled' message. I removed about 100ml of oil using a hand suction pump and it still says 'overfilled'. I'm not sure what has caused this, but the car drives ok. I performed a forced regen of the dpf last week after my IID Tool said I had 14gms of soot buildup (I've been doing mostly city driving in the last few weeks) - but reading this thread I'm going to pump out all the oil and see how much was in there. Then I will refill with only 5.5 litres (one or two bars below max on the digital display) then monitor the situation.
16th May 2023 7:28 pm
ClassikFan
Member Since: 02 Nov 2016
Location: Surrey
Posts: 1047
Keep us postedJust 'cause you got the power... that don't mean you got the right.
16th May 2023 9:27 pm
Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1664
I forgot to say, mine started a service required countdown around 5m after the previous service. That together withe the overfilled oil level indicator was gave me confidence it was definitely oil dilution ( as it had previously been at the ‘OK’ full level for those 5m). I’m scheduling in a second oil change towards the end of the year now.
Glad you got it sorted.Gary
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Discovery 4 HSE 2016MY
17th May 2023 7:59 am
Rotara
Member Since: 02 Mar 2021
Location: UK
Posts: 59
Hello everyone. I’m doing my oil change today and will remove the entire lot (suction method until nothing comes out). Two questions am I better off doing this method on a cold engine (after everything has drained to the sump) or on a warm engine where the oil is thinner? Second question is what amount do I put in? This would not be considered a dry fill would it? Service fill is 5.9 litres. Will probably start with 5.5
Thanks
26th May 2023 6:48 am
Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1664
My indy showed me how they do it . Warm engine, loosen oil filter before sucking out the oil. They have a proper vacuum pump, so get it pretty much all out and put in 6L . It shows bang on full an 'OK: following their procedure.
Good luck. Let us know how you get on. I'm going to do an interim oil and filter change at the end of the year using my newly acquired suction pump.Gary
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Discovery 4 HSE 2016MY
26th May 2023 2:43 pm
Rotara
Member Since: 02 Mar 2021
Location: UK
Posts: 59
Ok everyone this is what I experienced after taking my car to have a service done (I'm not going to name the garage - as it is yet to be determined whether it is a technician error or there's something wrong with my car).
But this is the procedure I carried out to fix the situation:
After checking the oil level some days after my service I had an overfill message - After driving the car and leaving it to settle the warning would not appear (it had the top of normal level indicator). The overfill message only appeared once the oil was allowed to completely drain back to the sump (overnight or more than 4 hours).
Checking with the GAP IID Tool (after leaving the car overnight) it said I had 7.4L of oil in the system.
Using the vacuum pump method I removed exactly 6.75L of oil (measured precisely) ensuring the car was left to stand for about two hours before the fluid removal (to ensure most returned to the sump).
Changed filter - re-torqued filter housing - replaced engine cover - added 5.2L of fresh Castrol Magnatec 5W-40 Diesel DPF (see LR_Time for advice on which oil to use).
The first check of oil level:
Checked with GAP IID Tool:
Topped up, drove around for a while - took another reading:
Checked again with GAP IID Tool:
Left it to stand overnight and took another reading this morning:
Checked again with GAP IID Tool:
It seems the GAP IID Tool measures how much is in the entire system (via some clever trickery).
I extracted all that I could with the vacuum pump and measured precisely 5.5L of fresh oil. So there's around 1.3L of oil retained around the engine in the galleries and lubrication channels. The only way to remove this would be to strip the engine completely. That would then result in a 'dry fill'.
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