SEAT Ibiza SC - Diesel in engine oil - Riggindale

My first car is a 3 years old SEAT and it has packed-up 5 days outside the Warrantee.

The engine has been wrecked by the leakage of diesel into the engine oil and with weakened lubrication the oil pump has failed, etc.

Is this a common fault?

How did the oil make its way into the sump? I have read of failures of fuel injector seals - could this be the problem?

I assume that the fuel has been leaking into the engine for some period of time but getting SEAT/the dealer to admit this could be a problem?

A new engine is needed and they don't come cheap.

SEAT Ibiza SC - Diesel in engine oil - Peter.N.

I'm not very familier with these engines but I believe fuel can get into the oil via the DPF system.

SEAT Ibiza SC - Diesel in engine oil - elekie&a/c doctor

Yes,that sounds feasable.At 3 years old ,I would think this is a common rail diesel engine and so the leaking injector seals theory does not apply.More likely to be overdosing of fuel for the regeneration of the paticulate filter system.This will certainly dilute the fuel and then the oil for the lubrication system.This problem would have been happening over a period of time,so well within the warranty period.Get the dealer to fix it Foc.hth

SEAT Ibiza SC - Diesel in engine oil - galileo

Yes,that sounds feasable.At 3 years old ,I would think this is a common rail diesel engine and so the leaking injector seals theory does not apply.More likely to be overdosing of fuel for the regeneration of the paticulate filter system.This will certainly dilute the fuel and then the oil for the lubrication system.This problem would have been happening over a period of time,so well within the warranty period.Get the dealer to fix it Foc.hth

Always assuming oil changes and servicing per manufacturer's specifications has been done on time/mileage!

SEAT Ibiza SC - Diesel in engine oil - The-Mechanic

I assume that the fuel has been leaking into the engine for some period of time

It probably has been. Not wishing to sound harsh but, this fault obviously didn't happen overnight but over a longer timescale as you state, and if you had been checking your oil level on a regular basis it would / should have come to light that the level was rising not falling earlier.

To dilute the engine oil to such an extent that it loses it's ability to sufficiently lubricate would take several weeks, if not longer (unless there was a catastrophic failure in the fuel system which would have been obvious). How often has the oil been changed, and was the correct oil used ? Has the DPF been successfully regenerated when required ? If not, this will cause the system to inject large amounts of fuel in an attempt to regen and if it fails or is aborted by not reaching the required parameters, it will try again and each time, loads of fuel is used which can cause the dilution. If the oil is old or the incorrect grade, the possibility of it losing it's lubricating properties is greater. Just last week I carried out an emergency regen on a 1.6 CR Golf and the instantaneous fuel consumption dropped to just 5.9 MPG ???? Luckily it was also having a service so the oil was changed afterwards which in my opinion, is the best thing to do. If a forced regen is required the car hasn't been driven within the parameters for normal regeneration, and as such, it has tried unsuccessfully at least three times and will weaken the oil.

Good luck with the dealership, I hope it goes well. Just remember to check the oil (and other levels) regularly in future though..............

Edited by The-Mechanic on 24/12/2013 at 07:51

SEAT Ibiza SC - Diesel in engine oil - skidpan

VAG engines are not well known for diluting the engine oil with diesel. The only cases I have read about have had nothing to do with the DPF regen but have been leaking/faulty injectors and in all cases the owners have admitted that fuel consumption had been much higher than normal in recent months.

As is normal the owners had all done nothing (including no weekly checks) until it was too late.

When will people learn they have to take responsibility to help ensure their investment keeps working, if something appears/is faulty take the car to a garage. An annual service is not enough, read the handbook.

 

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