Diesel in oil after injector change

[max69vk]

The easiest way to check if the seals are ok is for the garage to do a compression & leak test on each cylinder. If you've got access to VCDS have a look at the injector stabilization at idle, if one cylinder is showing +deviation while the other are showing -deviation then that is 99% your leaking cylinder.

Had exactly the same issues with my Audi PD170 & presented the info to Audi UK... Which then resulted in them removing the head & inspecting it to find where one of the injectors wasn't fitted properly it had ovalled the hole where it sits causing the compression to leak down the side of the injector which then affected the oil lubrication channel in the head. Cue the diesel in the oil (with rising levels on the dipstick) & oil in the diesel (black fuel filter & horrific running).

As it stands I've had a complete new top-end (inc injectors), cambelt + tensioners etc, torsion is 0.0 exactly & have had no more rising oil issues... However despite going into 2 seperate main dealers (over 5 times), the DPF warning has now been coming on almost every 100 miles & Im having turbo issues. This below might be of use to you (if you need a similar one for a free DPF replacement I have one too, from another PD170 owner)...

Edited 7 June, 2012 by max69vk

[Captain Scarlet]

Well it looks to me that I may be the latest one to suffer a rising oil level with a distinctive diesel smell coming from the oil and the oil runs very thin even when stone cold. Guess what this isn't long after having my injectors replaced under the recall notice.

The oil level was above the top bubble of the dipstick and as the DPF light came on I was able to drive as per the manual to clear it. The engine continued to tick over at 1000rpm however and after a short period returned to approx 750rpm. Then it raised the idle rpm back to 1000, and eventually the DPF light came on again. This time however I wasnt in a situation that allowed me to drive as per the manual. Resulting in the glow plug light to flash and enter limp mode, and then the engine management light came on.

Car has been recovered to the dealer who did the work while they inspect it to find the cause, seems an amazing coincidence that this has happened after the new injectors have been fitted and seeing how many more cases there have been.

I'm at the point where the service manager told me today that he has checked himself and that the oil level was normal on the phone. I then drove there and checked it myself in front of him and the oil level was above the max mark on dipstick, onto the bubble in fact.

Yet they haven't touched the oil in any way but done a forced regen on it to clear the DPF.

So would this excess oil increase the oil pressure inside the engine and cause harm?

Got a fair bit of evidence in various forms to pursue that matter as far as necessary till my car in fit again. Especially at ran perfectly fine up until, the point they serviced the car and replaced the injectors.

Any more advice for me?

[hatchy]

Christ you breathe a sigh of relief when the injectors are done and then some get this. Talk about 'out of the frying pan and into the fire'. :think:

Time to get VOSA involved again like they were brought into the injector issue in the first place and maybe even the media? Some dealer mechanics must be getting their arses kicked over this.

[skodacarman]

Captain Scarlet asks: "So would this excess oil increase the oil pressure inside the engine and cause harm?"

Too much oil in an engine can result in abnormally raised crankcase pressure that might damage seals. It can also damage catalysts and DPFs.

However, I'd be more worried about loss of lubrication from diesel mixing with the oil. High quality oil is important for the heads of SOHC PDs because of their narrow cams.

Good luck getting it sorted.

[silver1011]

Join the club Scarlet.

Skoda still deny there is an issue.

So far no one has been able to link or prove the many raising oil levels / DPF issues to the injector change.

There are at least half a dozen of us on here who know their car has issues, I dread to think how many are driving around blissfully unaware.

Ema_jane has just had her car recovered by Skoda UK to her local dealer for the same issue as you.

I too have experienced rising oil (and the associated cold starting problems you'll notice when it starts to get cold again!) and DPF warning lights.

My car was with Skoda for almost 24 working days and I'm still not 100% convinced it's totally right even now.

Some are reluctant to contact Skoda UK and are getting fobbed off by their dealer. Unless we all dig our heels in and ring HQ then Skoda will continue to ignore this issue.

[Captain Scarlet]

Hmmm, makes me wonder how long I'll be without my car now. Makes me wish I'd never bothered having the recall done, it was working perfectly fine before hand....

To be fair the after sales manager at my dealer has told me he has contacted skoda uk and is going to send off pics of my high oil levels etc and all the info they have read from my car.

We shall wait and see.

[max69vk]

Captain Scarlet asks: "So would this excess oil increase the oil pressure inside the engine and cause harm?"

Too much oil in an engine can result in abnormally raised crankcase pressure that might damage seals. It can also damage catalysts and DPFs.

However, I'd be more worried about loss of lubrication from diesel mixing with the oil. High quality oil is important for the heads of SOHC PDs because of their narrow cams.

Good luck getting it sorted.

Spot on.

Following the same incident with my engine the car goes back in next week for a replacement turbo (already had 2 sets of injectors & an entire top end) due to this exact issue. The lack of lubrication properties due to the 'watered' down oil has damaged the seals/bearings, which has in turn lead the turbo to now sound like a siren & leak oil from the exhaust side where it then burns & clogs the DPF unit. Even if the turbo wasn't leaking, the excessive crankcase pressure would still pour too much oil vapour through the engine which in turn then blocks the DPF.

Now here's the additional issue...

The main problem with the DPF is not soot blocking it, but ash. Soot can be burnt off, but ash still remains & it is this that clogs the DPF in the long run. With the addition of oil vapour/smoke pouring into the exhaust it combines with the ash forming a nasty substance that you've got no hope of removing, especially as the DPF is 'non-servicable' unit, If anyone has seen the pictures of blocked up EGR valves with the black crud everywhere, this is essentialy cooled down oil vapour & soot, now try to imagine hot oil vapour & ash which is a harder substance to deal with & you can see how much of a problem this is when its caught in the DPF.

[Captain Scarlet]

All useful info, just a shame the dealers won't have it that excess oil in the engine cause DPF issues. Which it does. Any time the oil is overfilled as you say above happens and the DPF can't clear itself. Resolve the oil level and engine returns to normal.

[Solz]

Gh

[Solz]

I dont no if you have got your car sorted but did you find out what the problem is?

Ive got a vw golf gt sport tdi 170, this also had a recall for the injectors, which vw replaced at the end of jan and mid april the car all of a sudden started juddering and letting out alot of blue smoke. Turned out cylinder 4 had lost compression went to vw as they were the last touch the car and no joy. I took it to a local garage and ended up opening the head up it had to valves that needed replacing, so ive had them replaced along with a head recon. Since having the car back it is still letting out clear smoke, so once again took it back to the garage and they opened the head up and they are keen that the injector 4 is faulty and problem is you cannot do a flow test therefore the garage went to vw with the injectors and they said they want the injectors in the car and then they will run some tests to see if the injectors are faulty. 

So now am having to wait until vw look at the car and see from there.

My car has only done 92k and has been off road since mid april. Before the injectors recall the car was runing fine never gave me a problem, then two and half months after the recall the car is misfiring surely something has gone wrong while the injectors were being replaced.

Now someone with a skoda has also got the same problem and from what has happened to my car i do no think its the dpf, after the head recon my car had a rich burning smell the garage said the dpf needs to be flushed out, but when i took the car to a vw specialist he goes its not the dpf so nw its the injectors

[Solz]

Has anyone got their car sorted after having all these issues after the injectors recall.

I have a vw golf 2.0 gt tdi 170, after giving my car in to vw for the recall, the car all of a sudden started juddering, which could be felt throughout the car and the car was smoking like hell also was misfiring. Turned out cylinder 4 has lost conpression, after finding this out i went to vw but they did not have any of it simply said nothing to do with the injectors or the recall. As i dont really know much about car i ended up giving a car to a local garage. After opening up the head turned out, i had two valves that were gone on cylinder 4, one valve had a whole in it. I forked out £1200 to have the valves replaced and have a overall head recon. 

The car has been off road since mid april, i got my car back after the head a week ago and now its back at the garage, the dpf light has come on 3 times in a week and there is burning smell coming into the car from the engine bay and also it is smoking. The garage opened the head up again and found no fault in their work carried out but when the took the injectors out, the mechanic said they think the 4th injector is faulty and as you cannot do a flow test on these injectors, the mechanic went to vw with the injectors and they go they cannot test the injectors unless their in the car and they have to carry a few tests for this. 

The car is booked in with vw for 1 aug, but after reading other peoples issues after getting the car back from the delears, im reluctant to give it to them just incase they mess something else up. Supposedly i give it to them

i they find a fault with the injectors will they replace them free and also would that allow me to say that them

injectors messed my car up in the first place.

This recall has messed up alot of peoples car and making them

fork out alot of money. Now why arent the delearships taking reaponsibility and does anyone no what i should do to solve this mess??

[silver1011]

The manufacturers and dealers know that it's an impossible job for us to prove what we know so they won't be admitting liability any time soon I'm afraid.