DMF and white smoke

[Popeye4th]

Hi all
As the title says but ill give you my problems then hopefully someone can help.
So i bought a seat leon 2.0 tdi (stylence i think) its 2007 model
So I've had it since the weekend taken it for a test drive everything was fine but two days later I've noticed a sound on the bottom end. Its like a ball bearing knock about there's no pattern just random there was also some white smoke. The thrus bearing rattles but when you put your foot down on the clutch the rattle goes but the ball bearing sounds still there.
I've been to see 3 mechanics and there all saying DMF if there all saying the same am just stumped why theres white smoke coming out the back.
I've got the DMF orderd and its getting done Thursday.

Please any help or someone with same symptom thanks

 

[Popeye4th]

So would dodgy duel mass flywheel make car smoke...

 

[mty12345]

Nope, it's probably 2 unrelated issues.

 

[Popeye4th]

Nope, it's probably 2 unrelated issues.

I had low oil and i originally thought that was why it was making the sounds. I've topped ack up now but sounds still there and so is the smoke.

 

[mty12345]

I had low oil and i originally thought that was why it was making the sounds. I've topped ack up now but sounds still there and so is the smoke.

How low is low? If it was really low, below the min mark, then maybe it has damaged the bottom end bearings?

 

[Popeye4th]

How low is low? If it was really low, below the min mark, then maybe it has damaged the bottom end bearings?

It was on the minimum level. And the is tapping on the bottom like some hard rubber balls are in there. To me the car drives fine gears go in properly no crunching or hard to do. Whats the symptom ofbottom bearings.

 

[Popeye4th]

Im putting a video on YouTube now ill put link in. But I've YouTube bottom end bearings and its a different sound.

 

[Popeye4th]

Its not letting me post video

 

[Popeye4th]

Search karllee2111 on youtube video is there.

 

[Speed-FReek]

This is a link to the video: https://youtu.be/svgr-iezLuU

That doesn't sound good at all.

Did you buy this from a garage or was it a private sale? If from a garage then I would be taking it back pronto. The fact that you've only had the car for two days and discovered the oil on the min mark clearly shows that the car has been neglected by its previous owner.

 

[Popeye4th]

That doesn't sound good at all.

Did you buy this from a garage or was it a private sale? If from a garage then I would be taking it back pronto. The fact that you've only had the car for two days and discovered the oil on the min mark clearly shows that the car has been neglected by its previous owner.[/QUOTE]

Thanks for posting video for me.
It was a private sale so ill just have to deal with it. Ive just watched a video on tube and a man had same problem as me but on a vw jetta and when he had the gearbox apart the clutch i think was tapping on the sides he said it was because the springs had gone or something. If thats my problem whats with the smoke im getting from the exhaust. Its white but not thick smoke.

 

[Speed-FReek]

Well I guess the noise could well be the DMF. You won't know until they take the gearbox off to replace it and can see what the deal is. Simply replacing the DMF might sort that particular issue out.

White smoke from the exhaust usually means that moisture or water is getting into the combustion chamber (i.e. failing head gasket). Is the water in your coolant expansion tank going down at all? Also, take a look under the oil filler cap to see if there is any "mayonnaise" type residue, and take the cap off the coolant expansion tank (when the engine has cooled down a bit as it will be under pressure) and see if there is any sign of oily residue floating about on top of the water.

 

[Popeye4th]

Well I guess the noise could well be the DMF. You won't know until they take the gearbox off to replace it and can see what the deal is. Simply replacing the DMF might sort that particular issue out.

White smoke from the exhaust usually means that moisture or water is getting into the combustion chamber (i.e. failing head gasket). Is the water in your coolant expansion tank going down at all? Also, take a look under the oil filler cap to see if there is any "mayonnaise" type residue, and take the cap off the coolant expansion tank (when the engine has cooled down a bit as it will be under pressure) and see if there is any sign of oily residue floating about on top of the water.

I've checked the oil cap for that already all is good there but ill check expansion tank tomorrow. Do you think the dpf could be the issue?

 

[mty12345]

Well I guess the noise could well be the DMF. You won't know until they take the gearbox off to replace it and can see what the deal is. Simply replacing the DMF might sort that particular issue out.

White smoke from the exhaust usually means that moisture or water is getting into the combustion chamber (i.e. failing head gasket). Is the water in your coolant expansion tank going down at all? Also, take a look under the oil filler cap to see if there is any "mayonnaise" type residue, and take the cap off the coolant expansion tank (when the engine has cooled down a bit as it will be under pressure) and see if there is any sign of oily residue floating about on top of the water.

Agree with all the above, good advice. Was someone blipping the throttle in the vid or is the engine doing that on it's own?

 

[Speed-FReek]

I've checked the oil cap for that already all is good there but ill check expansion tank tomorrow. Do you think the dpf could be the issue?

Do you know if tbe car definitely has a DPF still fitted or is there a chance that the previous owner had it "deleted"?

Are you getting the white smoke all the time or just after a cold start?

There are a couple of other causes of white smoke so I would strongly recommend getting a diagnostics check done on the car if you haven't already done so which might help pinpoint any failing components.

 

[Popeye4th]

Do you know if tbe car definitely has a DPF still fitted or is there a chance that the previous owner had it "deleted"?

Are you getting the white smoke all the time or just after a cold start?

There are a couple of other causes of white smoke so I would strongly recommend getting a diagnostics check done on the car if you haven't already done so which might help pinpoint any failing components.

Im unsure if previous owners had it done. And the smoke started last night very faintly. But when i drove it around today to get opinions of the mechanics it smoked but then stopped for abit then started again. Its not all the time.
Thanks for your input too its appreciated.

 

[Popeye4th]

Hi all I've got my car back and it was the dmf. The reason why its smoking is because the turbo on its way out. The mechanic said its pulling a bit of oil in if this is soo how do i fix it without getting a new turbo.

 

[Speed-FReek]

Hi all I've got my car back and it was the dmf. The reason why its smoking is because the turbo on its way out. The mechanic said its pulling a bit of oil in if this is soo how do i fix it without getting a new turbo.

If the oil seals on the turbo have gone then the only way to fix this is with a new / reconditioned turbo. No other way.

 

[Popeye4th]

If the oil seals on the turbo have gone then the only way to fix this is with a new / reconditioned turbo. No other way.

I've just paid £525 for this doing now the turbo.
I've no luck with cars for the amount of cash I've spent on cars in the last year i could of saved and bought a new one. How hard would it be to do the seals myself?

 

[kazand]

I've just paid £525 for this doing now the turbo.
I've no luck with cars for the amount of cash I've spent on cars in the last year i could of saved and bought a new one. How hard would it be to do the seals myself?

Not hard, in the same way as diy eye surgery is not hard. You really are asking for trouble. The turbo is more than likely worn, the reason the seals have failed is probably down to play in the shaft spindle, putting new seals in on their own will not cure the problem. If you refit your turbo having only done the seals you could destroy your engine if the turbo goes bang.