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Oil level too high - sold the car!Views : 9270 Replies : 76Users Viewing This Thread : |
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Nov 6th, 2021, 16:32 | #11 |
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I got rid of my ‘18 plate S90 D4 Inscription in May, for exactly the same reason.
It was 7 months old when I bought it and during my ownership it went back to Volvo twice for the ‘oil overfilled’ warning. On both occasions an oil and filter change was done under warranty but as the warranty was due to expire any further problems would be down to me as the fault was “because of my driving style”! The dealer wouldn’t entertain any discussion about the DPF active regeneration and oil dilution problems despite them being a known issue. I never really gelled with the car, particularly the noisy and unrefined Diesel engine and only average build quality and materials. It’s also my opinion that some of the supposed safety features relating to collision avoidance and traffic sign recognition braking are positively dangerous. Calling Volvo a premium brand is a real stretch. On the day it was sold and driven away I was a very happy bunny. |
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Nov 6th, 2021, 16:38 | #12 | |
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The diluted oil is also not providing sufficient protection in later stops. So cycle of wear is started that ruins the engine. If you are offered a low mileage diesel car you need to walk away. Unless the low mileage is made up of long runs with no cold stop/starts in between. And, of course, this problem is nothing to do with Volvo quality. The replacement Peugeot will go the same way if it suffers cold stops (which a Hybrid is more likely to do). Hopefully the new one is a petrol?
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Nov 6th, 2021, 17:22 | #13 | |
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Surely such a significant amount of diesel being accumulated in the sump is far likely to be caused by one (or more) leaking injectors, potentially allowing the entire pressurised volume in the rail to be discharged?
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Nov 6th, 2021, 18:01 | #14 | |
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https://www.jstor.org/stable/26273272 I'm no expert, but the issue affects many more vehicles than Volvo. It seems that vehicles which have the DPF situated further from the engine are prone to greater problems, partly because it is more difficult for the engine post-injection cycles to achieve suitable DPF temperatures to complete the regeneration cycles. My Volvo is a petrol car, but I know that many diesel vehicles including my van can suffer from oil dilution. My van has a built in software algorithm that monitors a variety of sensors and external conditions, from which it "calculates" (guestimates) the likely conditon/dilution of the oil due to the number and type of regeneration cycles, and displays a warning when or if it considers that the oil should be changed before the normal service interval. If the warning is ignored, the vehicle enters limp mode a short time thereafter, and if further ignored, refuses to start until the system has been reset - hopefully following an oil change, but some owners are just resetting the warning system without changing the oil by following YouTube type instructions and because they don't understand the logic! Modern DPF compatible oils are engineered for use with up to something like 9% oil dilution by fuel, from memory, by which time however they are often barely capable of meeting the grade criteria from what I have read. |
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Nov 6th, 2021, 18:26 | #15 |
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Exact same issue with the LR Discovery Sport that we’re handing back in January (and replacing with a XC90 T8) - oil dilution. Land Rover know the problem and have even got a sensor to detect the dilution level which then triggers an oil service message. LRs answer is to just regularly change the oil- which they’ll do for free under warranty- and then charge a fortune for afterwards.
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Nov 6th, 2021, 19:41 | #16 |
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Yes, it's a petrol.
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Nov 6th, 2021, 19:50 | #17 | |
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Nov 14th, 2021, 11:16 | #18 |
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Hello Zebster,
I asked my dealer if the problems might be a symptom of something more profound. Our neighbour (a GP) drives a 2018 diesel XC60 almost exclusively on short trips related to work and has never had any issues. My car was a 10-month old ex-Volvo management car when I bought it, so perhaps the problem originates in the 10k miles it did then. Regardless, the dealer would not investigate the root cause, and Volvo wouldn't acknowledge the issue or help with any costs incurred in searching more deeply. I was bound to be the loser if both the dealer and manufacturer refused to back me, so I sold the car. Cheers, Iain |
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Nov 14th, 2021, 12:03 | #19 | |
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Very convenient for the dealer to blame the owner's driving habits though...
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Nov 14th, 2021, 17:31 | #20 |
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any unburnt fuel is forced past by the massive compression a diesel engine has
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