High oil level warning

[Wingtank]

As an update: this morning I took the car for a 50 mile blast along the motorway (possibly and only momentarily exceeding the speed limit) and then parked the car for a good hour. When I came to drive home the warning had self cleared!

Perhaps the oil over fill warning is also an indication that the car needs a thrash to clear the DPF out?

However, doing a pointless motorway blast every couple of weeks kinda defeats the object of fuel economy and reducing emissions.

[Wingtank]

Further update:

Part way through 200+ mile journey the oil over full warning is back! The car is booked into Hatfields (Bury) next Tuesday to be corrected and they advised me that it could cost £66 for oil and filter change if there aren’t any ‘warning codes’ showing. I was further informed that an oil change could br required every six months or so given my driving habits.

I thought I was doing the right thing for economy by buying a diesel but if I’d known that a car fitted with a DPF would give me this trouble I wouldn’t have bothered!

[Quacker]

Originally Posted by Wingtank

Further update:

Part way through 200+ mile journey the oil over full warning is back! The car is booked into Hatfields (Bury) next Tuesday to be corrected and they advised me that it could cost £66 for oil and filter change if there aren’t any ‘warning codes’ showing. I was further informed that an oil change could br required every six months or so given my driving habits.

I thought I was doing the right thing for economy by buying a diesel but if I’d known that a car fitted with a DPF would give me this trouble I wouldn’t have bothered!

It won't help you one bit if I told you that while I run an all diesel fleet, there is no way on earth that I would specify diesel of any brand for a driving duty that consisted of less than 8000 miles a year and/or mainly journeys of less than 15 miles. Not on any diesel fitted with a DPF, which is every current diesel car.
DPF's are, on the whole and with specific exceptions, very reliable as long as the car is driven for say 20 mile journeys once a week or so at least. I've not had a single issue with any DPF apart from its 'diffuser', which is more commonly called a fifth injector, needing to be changed on my Ford Ranger diesel pickup. I changed it before the DPF became a problem. As soon as the amber warning light showed on the dash, using a third party [not Ford] part. This was at 50,000 hard miles which consists of much heavy [3.5 tons] towing.

Land Rover Discovery Sport and RR Evoque plus one of the Jaguars with the same Ingenium engine, transverse mounted, have massive issues with fuel contamination and DPF blockages currently. Theirs is a design fault. Volvo has no such design fault and indeed has a very well designed system with the DPF unit close-coupled to the turbocharger for maximum heat retention.

Your only solutions are to drive more and further, or to change the car for one with a petrol engine or even all electric if most journeys are of less than 200 miles round trips.

[James77]

Originally Posted by Quacker

It won't help you one bit if I told you that while I run an all diesel fleet, there is no way on earth that I would specify diesel of any brand for a driving duty that consisted of less than 8000 miles a year and/or mainly journeys of less than 15 miles. Not on any diesel fitted with a DPF, which is every current diesel car.
DPF's are, on the whole and with specific exceptions, very reliable as long as the car is driven for say 20 mile journeys once a week or so at least. I've not had a single issue with any DPF apart from its 'diffuser', which is more commonly called a fifth injector, needing to be changed on my Ford Ranger diesel pickup. I changed it before the DPF became a problem. As soon as the amber warning light showed on the dash, using a third party [not Ford] part. This was at 50,000 hard miles which consists of much heavy [3.5 tons] towing.

Land Rover Discovery Sport and RR Evoque plus one of the Jaguars with the same Ingenium engine, transverse mounted, have massive issues with fuel contamination and DPF blockages currently. Theirs is a design fault. Volvo has no such design fault and indeed has a very well designed system with the DPF unit close-coupled to the turbocharger for maximum heat retention.

Your only solutions are to drive more and further, or to change the car for one with a petrol engine or even all electric if most journeys are of less than 200 miles round trips.

My current 2 cars are petrol,however, the previous 6 have all been diesel (with DPF) and all low mileage. I cover c6000 miles a year my commute to work is 5 miles each way and the vast majority of driving is local. I have never experienced any oil overfill issues on any diesel BMW, Renault or Volvo. My last car was a 2015 XC60 D5 which when returned last December had covered 32000 miles from new. Agreed Diesel is best for long distance driving, however, what is shows is a fundamental flaw in the current Volvo design whatever why you cut it there is an underlying issue.

[Ringthane]

Originally Posted by Quacker

DPF's are, on the whole and with specific exceptions, very reliable as long as the car is driven for say 20 mile journeys once a week or so at least.

My last D5, did about 6000 miles a year, for eight years, short commutes of no more than 10 miles a day and never suffered from oil dilution or DPF issues. My current D4 has done 6000 miles so far and this weeks commute is 8 miles a day. No oil dilution issues so far and it still returns an average of 34.5 mpg. I might be on the edge here; I won’t know unless I get a problem, but don’t you think that a diesel engined Volvo would be unusable, if we couldn’t just potter to the shops in it without blasting it down the motorway once a week?

[Quacker]

Originally Posted by Ringthane

My last D5, did about 6000 miles a year, for eight years, short commutes of no more than 10 miles a day and never suffered from oil dilution or DPF issues. My current D4 has done 6000 miles so far and this weeks commute is 8 miles a day. No oil dilution issues so far and it still returns an average of 34.5 mpg. I might be on the edge here; I won’t know unless I get a problem, but don’t you think that a diesel engined Volvo would be unusable, if we couldn’t just potter to the shops in it without blasting it down the motorway once a week?

There is no motorway of even a dual carriageway of more than half a mile within 30 miles of me, and then only in one direction, from Carmarthen to the M4. Anyone who has been North West of Carmarthen [not down to Pembs which is not the route I take to get there] will know what I mean and that the next dual carriageway is about 100 miles North. So no motorways where I am but the nearest large supermarkets are 20 miles to the North or South or 30 miles South East.

If you predominantly use a DPF equipped car for short journeys, it doesn't matter much what brand of car, you are playing with fire. It will only be a matter of time before you have DPF issues.
Knowledge is power. Knowledge of this universal issue means saving a whole lot of potential aggravation, inconvenience and cost.

[uksteve]

Coming in late with this and I don't know if this has been mentioned but on page 466 of my S90 user manual they cover low mileage in diesel cars with the words " the car should be driven on A roads at speeds in excess of 60km/h ( 38mph) for at least 20 mins between each refuelling.


Cheers

[Steve XC60]

I am probably showing my ignorance here, but what if you do a mixture of long and short journeys (as many do) and the DPF chooses to start a regen on a fairly short journey, or on a long journey just before the journey's end?

I appreciate that on the balance of probabilities if you do more long than short journeys then you are less likely to have a problem, but I am struggling to see how just making sure you do a 30 minute drive at a decent speed between fill ups would mean you are unlikely to have a problem.

[Wingtank]

Yet another update:

The oil overfull warning on the driver display has cleared again and the oil level indicator in the centre display shows ‘full’ (not overfilled). I’ve now no idea what’s going on but I’ll still take it to the dealer as arranged and see what they make of it.

Question: what happens at the end of a drive and you turn off the engine but hear the fans running, indicating active regeneration. If the engine is immediately restarted will the regeneration continue or, because it’s been interrupted, is that the end of it?

Confused!

[gaby]

Originally Posted by uksteve

Coming in late with this and I don't know if this has been mentioned but on page 466 of my S90 user manual they cover low mileage in diesel cars with the words " the car should be driven on A roads at speeds in excess of 60km/h ( 38mph) for at least 20 mins between each refuelling.

The 2019 Belgian manual (and probably other as well) gives the same advice for petrol engines.