 | Home > Faults & Fixes (L663) > D300 engine failures? |
 
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| YOLO110 Member Since: 14 Feb 2015 Location: Perth Oz and Stansted UK Posts: 1646  
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It's on it's way in a few more days guys... patience! YOLO... You Only Live Once... |
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17th Nov 2024 12:06am |
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| YOLO110 Member Since: 14 Feb 2015 Location: Perth Oz and Stansted UK Posts: 1646
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So!
To now fill in the blanks... I have successfully rejected my used 2023 Defender 90 HSE D300 over concerns regarding oil dilution and engine wear. I recently purchased the vehicle. It had just had it'd one and only service at the recommended service interval of 21,000 miles. Being 'old fashioned' (sensible), on collection I looked at the oil level on the dipstick and noted it seemed very black and very thin. I queried this but the dealer assured me the service had been carried out. Out of prudence, I subsequently decided to take an oil sample and send it off to a respected specialist oil analysis company for report. The results came back and were of significant concern. Bearing in mind the sample was taken just after the engine oil and filter change, I was astounded to discover that the oil viscosity (0w-30) was diluted nearly 10% by diesel. But more importantly, Iron levels were found to be 150ppm. (The recommended maximum Iron level is circa 50ppm). Crankshaft wear was identified. Despite the vehicle having 2 years warrantee remaining, the prospect of this engine lasting me over 100k miles and 10 years now seemed problematic. I believe that JLR has a smoking gun still brewing with these high oil change intervals. The combination of this with DPF's and oil dilution is IMHO just a bad decision, both for the customer as well as JLR. I forecast there will be an outbreak of failures on the D250/D300/D350 engines as a result. Perhaps if I bought a new vehicle and then changed the oil every 5,000 miles, I might be able to live with it. I was gutted to say goodbye to what is such a great car in so many respects. But the lack of confidence in the engine product is not something I was willing to risk. I would suggest that all of you out there with the D300 engine spend £50 or so and get an oil analysis carried out. I would be really interested in the results. YOLO... You Only Live Once... |
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4th Dec 2024 6:59pm |
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| TexasRover Member Since: 24 Nov 2022 Location: Paris Posts: 1144  
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Just a silly question, but how do you know for sure they did change the oil?
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4th Dec 2024 7:47pm |
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| YOLO110 Member Since: 14 Feb 2015 Location: Perth Oz and Stansted UK Posts: 1646
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Yes, 100%! YOLO... You Only Live Once...
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4th Dec 2024 9:09pm |
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| YOLO110 Member Since: 14 Feb 2015 Location: Perth Oz and Stansted UK Posts: 1646
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Reply was deleted??? YOLO... You Only Live Once...
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4th Dec 2024 10:09pm |
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| lightning Member Since: 23 Apr 2009 Location: High Peak, Derbyshire Posts: 2948 
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My oil was changed by an independent Land Rover specialist and they drained it using the sump plug. lt's a pain because you have to remove both under trays to get to it.
lf the oil dilution in yours was at 10% after 80 miles then either the oil wasn't changed at all, there's a major issue with the EGR unit or (as you suggested) the oil was not fully drained when it was changed. From your findings l think you did the right thing rejecting it. Sadly someone else will take delivery and probably have the engine grenade itself after a couple of years. Last edited by lightning on 5th Dec 2024 7:53am. Edited 1 time in total |
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4th Dec 2024 10:18pm |
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| Eric Caterpillar Member Since: 17 Jun 2024 Location: West of Scotland Posts: 65 
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Sorry to hear you rejected the car based on your experience, but it was a good move in the long term.
The reason why I bought a brand new Land Rover was purely so I could have it serviced every year and potentially mitigate any engine wear due to an unreasonable interval schedule (I don't buy into the modern engineering advancement and that it's ok to leave it for 21k miles, but it's a personal opinion without any engineering background or mechanical experience) + to add the spec I wanted. The plan is to keep it long term. But it's a good question, you can't really be 100% sure the paid for service has been carried out properly. So I think it'd be good to have an intermittent service carried out by an independent. Funnily enough, my local independent (Prestige in Paisley) quotes £200 + VAT for oil and filter change and the main dealer quotes £250 inclusive (Parks Ayr)... |
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4th Dec 2024 11:00pm |
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| ruben Member Since: 04 Feb 2021 Location: ASTURIAS Posts: 242 
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IMHO, I think it's crazy, I experienced the same thing 15 years ago when I bought my beloved D3 TDV6 in manual gearbox. Everyone was talking about deficiencies, oil pump problems, crankshaft, injectors, clutch, handbrake... pneumatic problems... that is, everything... and there was already very bad talk about the proposed maintenance periods, they were 24,000 km, it seemed like a lot at the time, it wouldn't hold up, many said at the time, and there was no talk of dilution in EURO 3, many people known here began to change the oil prematurely at 10,000, add 2T oil... replace the clutch with reinforced models... that is, all kinds of mischief... my previous car, an Opel Frontera 2.2 DTI, required oil changes every 15,000... and I ALWAYS did the maintenance on the strict recommendation of the manufacturer, and the Frontera left with 290,000 km and 6 years without problems to buy something better, the D3, and this one also followed the same guidelines, strictly those of the brand... it never gave up. No problems at all, and it went strictly as standard, at 18 years old and 390,000 passing the TUV without problems and pulling like a locomotive ... and it was only, with great regret, for something better, in my opinion, which is my current DEFENDER 2023.5 I6 D MHEV to which I will do the same, an engine about which not many complaints appear today on the networks ... and which I do not intend to analyze its oil or give up for fear of dilution ... I will not do it, I only focus on enjoying and taking care of this wonder as much as possible and that what has to happen will happen, as with all brands and all cars, they are machines, but I will do it, I insist, once again always with the strict recommendations of the manufacturer ... there is no literature on the networks or the media to make you think otherwise ... and once again I will say:
do not panic !! Defender 110 SE I6 D250 23MY ExDiscovery 3 TDV6 SE |
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5th Dec 2024 3:54pm |
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| zilch Member Since: 11 Sep 2019 Location: Whitsundays & Sydney Posts: 823
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For about $350 I would strongly suggest that anyone who wishes to keep their vehicle longer than the usual lease period changes their oil and filters at least annually or 12,000km. yet another pommie bar steward down under MY20 110 P400 SE Defender MY10 3.0 RR Sport |
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6th Dec 2024 3:51am |
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| lightning Member Since: 23 Apr 2009 Location: High Peak, Derbyshire Posts: 2948
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Or do it yourself for $200/£150
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17th Dec 2024 5:58pm |
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| fubar Member Since: 16 Sep 2023 Location: Ipswich Posts: 6
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So basically there was nothing wrong, you just think something could go wrong. I won't say Karen but seriously... You made out like there was something majorly wrong and it was nothing. Also if you are in Australia, why is everything in miles and pounds? ----- Larry Junior: L663 MY23.5 D300 110 Larry Senior: Series 3 Stage 1 V8 109 |
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29th Jan 2025 10:15am |
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| TexasRover Member Since: 24 Nov 2022 Location: Paris Posts: 1144
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Well the way I read it what was wrong is that the dealer said the oil was changed yet the sample showed it was not and the OP keeps insisting the oil has been changed. To have such blind faith in the motor trade...
Even if the engine had (non catastrophic) issues and runs seemingly fine it would take a while for that to show up in fresh oil. |
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29th Jan 2025 10:25am |
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| revd Member Since: 20 Apr 2024 Location: England Posts: 183
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Any owner with half an eye on engine longevity knows 20k oil changes are a bad idea -only promoted to look good for the benefit of fleet buyers and cost accountants. Annually or 5-7k is my usual oil change interval
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29th Jan 2025 12:52pm |
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| jim4244 Member Since: 13 Apr 2014 Location: Bedfordshire Posts: 850  
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I never realised that the D300's had a dipstick? I thought most modern cars showed you the oil level electronically?
Jim |
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29th Jan 2025 1:01pm |
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