 | Home > Puma (Tdci) > 2.2 tdci oil level & warning light |
 
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| ozzie1989 Member Since: 25 Feb 2009 Location: Wales Posts: 282   
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If the oil pressure warning light comes on then that indicates there was not enough oil in the engine to sustain the correct pressure, or a pump failure etc. This can cause damage depending on how long it occured before the engine was stopped.
I think there is around 1 litre between bottom and top of the dipstick so this would suggest you had lost a significant amount of oil somewhere, or it hasn't been checked in a long time. Worth checking turbo etc. to ensure that's not on it's way out. Have you noticed any smoke from the exhaust? Now: 2010 2.4 TDCi 110 Utility Wagon Then: 2004 2.5 TD5 90 Hard Top (X-Tech Edition) |
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22nd Aug 2020 12:19pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8006  
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I too was under the impression 1l from max to min on dipstick.
Add another 500ml. To me that oil looks like it needs a change. 3l that would be, engine takes 7l is it? Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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22nd Aug 2020 2:56pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 1981 
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Oil level dropping on a 2.2 does indicate a problem as normally it increases due to the dpf regeneration process. I would check sump plug, oil filter, under engine and where engine meets gearbox for signs of oil leakage first.
Then do a full oil and filter change( that oil has been working hard as it’s 3l short in the engine) make sure its at top level, run engine for five mins, let engine cool for 15 mins then check oil level again and top up if required. Take truck for a 15 min drive , on return park up and place a large piece of clean cardboard under engine and gearbox, this will show up any oil dripping far better than if it drips on a drive or road and and help in identifying where it’s coming from. If no drips and level continues dropping then it must be being burnt so as ozzie1989 says keep an eye out for black smoke from exhaust. |
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22nd Aug 2020 3:42pm |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 1065  
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It's two litres between min and max!
As above, it's an oil pressure warning. There is no oil level sensor! (well there is, the oil temperature sensor could do that but LR decided not to use it...) |
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22nd Aug 2020 8:27pm |
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| discomog Member Since: 09 May 2015 Location: Notts/Lincs Border Posts: 2526 
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Just a slight correction with regards to the colour of exhaust smoke. If the engine is burning oil then it will be blue/grey smoke not black. Black smoke is indicative of unburnt fuel. Defender 90XS SW
Mini Countryman Cooper S Morgan Plus 8 |
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23rd Aug 2020 7:24am |
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| qwert Member Since: 26 Aug 2010 Location: Switzerland Posts: 33 
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Hmmm. Good that you noticed a warning light. I would not mind if there was a warning sound as well.
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23rd Aug 2020 3:45pm |
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| Supacat Member Since: 16 Oct 2012 Location: West Yorkshire Posts: 11018 
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Yes, odd that there is a combined oil level and temperature sensor fitted and whilst the level sensor is not used the temperature sensor is used: "The oil level and temperature sensor is installed in the cylinder block skirt stiffener, mid-way along the RH (right-hand) side of the engine. The oil level signal is not used, as a mechanical dip stick is fitted. The ECM uses the oil temperature signal to control the engine oil temperature. In extreme operation the ECM limits engine torque to prevent the oil temperature exceeding 140 °C (284 °F)." (from Workshop Manual) It's interesting that with that much oil missing from the system of the OP's vehicle that the temperature did not exceed the threshold stated and so limited engine torque in a way apparent to the OP; or perhaps it did and OP did not connect the two? Also begs the question if the level sensor is there why it's not used to give an extra level of protection. If it's engineered into the wrong part of the engine and may give false reading when off road at extreme angles, then surely the temp element of the same sensor would suffer the same issue? |
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24th Aug 2020 8:29am |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 1065
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Good question(s). Maybe a level sensor is better placed in the sump pan? And when would you read that level? Only with engine "cold" as with the dipstick? Also a sensor requires a software to interpret its signal, write DTCs and display a "panic" signal to the driver
 Only thing I don't like about the dipstick is I find it hard to read because of this zigzag pattern... |
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24th Aug 2020 9:45am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17337 
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If the oil level is so low that the oil is no longer in contact with the sensor it won't flag up any overheat warnings.
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24th Aug 2020 11:28am |
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| Supacat Member Since: 16 Oct 2012 Location: West Yorkshire Posts: 11018
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Good point.
If you were designing the function, hopefully you'd take account of high temp as a result of volume loss and place the senor accordingly. I am rather assuming that if the volume of oil decreases the temperature rises ~ maybe it doesn't and the reduced oil volume just doesn't cool some parts. |
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24th Aug 2020 12:20pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17337
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It would not be a problem if the level and temp sensors were used since the level sensor would go berserk before the temp sensor was uncovered.
The design (Ford) is fine, the error is in only using one sensor of the two provided by design. Clearly an unimaginative and generally gormless person at Landrover failed to carry out an FMEA on this. No surprise there. |
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24th Aug 2020 12:32pm |
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| Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 477 
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Have you ever thought about off road use ?
That's why they changed the oil sump for instance. They did it even twice 
And I would not like the engine warning light (and the limp mode) to come up while I am at 45° inclination on a hill. There are at least a few things I'd never do with a Transit van ... that I do with the Land Rover But that's just my opinion. |
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24th Aug 2020 8:45pm |
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| Supacat Member Since: 16 Oct 2012 Location: West Yorkshire Posts: 11018
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Yes ~ I even referred to it in my post.
If a warning light is going to put you off whilst on a 45° inclination on a hill, I can't imagine what a seized engine will do! |
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25th Aug 2020 6:45am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17337
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There are plenty of ways to manage this aspect, for example to read the level at engine start only, to include a tilt sensor on the vehicle (not expensive), or simply to persist the reading over a suitable period. It is for example rare that you have the vehicle running on a 45 degree tilt for half an hour. That being said, the problem arises because one sensor is used and not both. Best of all would be to use neither and derive the oil temperature indication from a more sensible location. There are, sadly, many features of the adaptation of the Ford engine and gearbox into the Defender which rather force you to the conclusion that the job was done on a very tight budget, rather than being properly engineered. |
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25th Aug 2020 10:48am |
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