Hi to all. I am based in New Zealand and have been the proud owner of a 2007 Scout for the past 6 months. Its the 140 pd engine, Code bmm. It is great and love driving it.

I will be honest and say that I stumbled on this site while searching for information on a fault that it has. I carried out a oil and filter change before xmas and drained way to much oil from the sump. As a precaution I sent the oil for testing and found out that it was contaminated by diesel.

I contacted the previous owner who reluctantly mentioned that it had been a problem under warranty but that Skoda had fixed it. He agreed to send me the warranty history that he had.

Interesting reading, briefed as follows. Injector seal kits fitted, tandem pump replaced, complete exchange long block fitted, rebuilt injectors removed and new ones fitted, last repair was another tandem pump fitted ( superceded part number) and new software installed.

I got scared. Traveled 3000kms since then and re-drained the oil. 5 ltrs from a 4 ltr sump. Same result from the Lab. Oil is contaminated by fuel.

As far as I can tell, everything has been replaced. so looking for suggestions on where to go next. Don't want to give up on the Scout as she is absolutely perfect in every other way for my driving and towing needs, Any suggestions would be welcome.

Great reading the positive feedback these vehicles get on here and look forward to your responces.

Kind Regards

Edited 12 January, 201214 yr by Just_Call_Me_Dave
Better title

Welcome again to Briskoda! Lots of views but no advice as yet...

I contacted the previous owner who reluctantly mentioned that it had been a problem under warranty but that Skoda had fixed it. He agreed to send me the warranty history that he had.

Interesting reading, briefed as follows. Injector seal kits fitted, tandem pump replaced, complete exchange long block fitted, rebuilt injectors removed and new ones fitted, last repair was another tandem pump fitted ( superceded part number) and new software installed.

Hi,

So basically they replaced the entire engine, the engine software and most of the fuel system but the fault still remains? Straightforward problem - your car is possessed

Did you buy the car from a dealer or direct from the previous owner? Just wondering if the previous owner would back you up if you took it back to the Skoda dealer where they had all the warranty work done? Clearly the original fault was never cured and it sounds like the first owner just gave up and got rid. Could the dealer be persuaded to have another go if you spoke to Skoda customer service perhaps?

There's every possibility that this is not relevant, but I thought I'd just chuck it into the mix anyway :-)

Before I bought my vRS a couple of months ago I was considering several other cars. Among these was the Mazda 6. Reading around on the internet about these, I found many, many stories of their 2.0 litre diesel engine doing exactly this. Somehow Diesel was ending up with the oil in the sump until it effectively became so overfilled that the engine would become damaged. In those cars, the fault was something to do with the regeneration process for the DPF filter in the exhaust system. IIRC those cars deliberately burned diesel in the exhaust system to raise the temperature to regenerate the DPF. Any unused diesel from this process over - flowed into the sump.

As I said, I have no idea if this is the process used on the PD 140 engines, but it might be an area for more research?

There's every possibility that this is not relevant, but I thought I'd just chuck it into the mix anyway :-)

Before I bought my vRS a couple of months ago I was considering several other cars. Among these was the Mazda 6. Reading around on the internet about these, I found many, many stories of their 2.0 litre diesel engine doing exactly this. Somehow Diesel was ending up with the oil in the sump until it effectively became so overfilled that the engine would become damaged. In those cars, the fault was something to do with the regeneration process for the DPF filter in the exhaust system. IIRC those cars deliberately burned diesel in the exhaust system to raise the temperature to regenerate the DPF. Any unused diesel from this process over - flowed into the sump.

As I said, I have no idea if this is the process used on the PD 140 engines, but it might be an area for more research?

I agree, my first thought on reading the problem was that it could be DPF related. I beleive it is normal for a small ammount of diesel to end up in the sump if a regen is interrupted (For e.g. turning the engine off mid regen) however unless your driving style casues a lot of regens which are being interupted then it shouldn't put as much diesel in the sump as you suggest. Possibly the DPF is faulty?

My thinking is get rid and see if you can find a better example, I have a 2008 Scout 140PD BMM and trust me they don't all fill the sump with diesel!

As the sump level rises, could you experience the dreaded 'diesel runaway'?

http://en.wikipedia.org/wiki/Diesel_engine_runaway