Weird unknown sound on 2.0TDI EA 288 engine

[N871BUD]

Helo everyone, yet back with a weird problem sound.

Engine is as above code crlb 129k miles, no dtc, no issues but a weird sound as per following link:

2.0 tdi unknown sound 2 - YouTube (https://youtu.be/qIwDkpV3j84)

No clue what it is and cause of for last 1500 miles since noticed. Do to it and that was do soon on the car :

* Cambelt with water pump
* Glow plugs( as one was playing up
* Cambelt again without water pump thinking might be related causing the sound.
* Aux belt and tensioner also suspected as i had a spare kit.

I usee a stethoscope to try to pin point it and the loudest it can be heard from injector 4 feed pipe.

Any opinions?

[VAG-Abound]

It says age restricted and I don't have an account to sign in with. On the plus side, pretty sure I wouldn't have known what it was :).

[Roverfan]

Always associated that noise with an aux belt pulley. Run car with aux belt disconnected to see if one of the pulleys/idlers on its round is the culprit

[Crasher]

This engine is gaining a reputation for terrible problems with the VVT unit and wear of the cam to cam drive gears on the end of the head above the gearbox. The system has been revised five times and before ordering any new parts, the old system has to be removed and checked to see what is fitted so the correct parts can be ordered. You need to get someone who knows the EA288 to listen to the noise directly.

[N871BUD]

@Roverfan (http://www.vwaudiforum.co.uk/forum/member.php?u=262836); i usually think the same but not the case here.
@Crasher (http://www.vwaudiforum.co.uk/forum/member.php?u=6324) 04L109096 is what i have on the housing but my parts catalogue says is supposed to be 03L109096 B, and apparently... if I have 04L109096 housing the 04L906455G is the operating valve so for housing 03L109096 B operating valve should be 03L906455C.

i think you are might be very right about the sound coming from Crasher take a look of this from minute 6:00 to 7:00 it has the same sound, and yes i had a few occasions when it cranked longer to start... but did not though much of as it a happened vary rare... 4 times in the last 3 months.

https://www.youtube.com/watch?v=DXvHdmq0reA

@20:45 the high pitch sound is not present anymore.

can you please confirm the part numbers are the latest revisions of what is fitted or i one after the 2019 revision?

[Crasher]

I need your REG by private message to continue

[N871BUD]

Sent. Thank you.

Seems like the part catalogue i have is pretty useless...

I am using engine oil G 052 195 M4 is this being superseded by something else also?

[Crasher]

Even the full VAG system ETKA online needs to use info of the old parts on this job. I will have my lunch first.

[N871BUD]

Even the full VAG system ETKA online needs to use info of the old parts on this job. I will have my lunch first.

Hi everyone time to update this i think... sort of... as end result is next to nothing as i am spinning in a dealership circle with no exit.


After my last post i have been to a skoda dealership tho as i have vw and audi far closer to my house but hmmm for some reason either vw or audi want to hear about ordering parts for a skoda...

Anyway i gived to parts counter reg vin and asked for the valve and housing and i received last week 03L109096B and 03L906455C tho i specified that on the car i have housing 04L109096 so most likely my valve is 04L906455G and the reply was those part numbers are not for skoda:zx11:.


Today as the only day with half decent weather i got on taken the valve apart and what i have on the car is housing 04L109096 V350and valve 04L906455G V350 actual number from parts... New parts however housing 03L109096B V300 and valve 03L906455C V300 ... the valve will not even fit as a different diameter to the actual cam 04L109088 V360...:aargh4::zx11::mad::1zhelp:.

the solenoid on the housing is actually the same part number old and new... and obviously i had to put everything old back change the oil in the process, i found the solenoid to be a bit sticky but managed to get it freed up... end result was the same tho...

So now next i need to find out what is what...:confused::banghead:

[Crasher]

If you ordered 04L 109 096, that is what you should have been supplied, not 03L 109 096 B and the same for 04L 906 455 G. I know it is expensive but the only way we will deal with this is to fit the full twice revised camshaft module 04L 103 044 Q at £1417.86., from my perspective time is money and I have had enough pain with VVT systems to last me a lifetime. Why can't VAG do nice reliable VVT units like GM do on the LS and LT engines, simple, reliable, economical and powerful.

[N871BUD]

hi, i went with both sets of part numbers and i said this is what is on the car my parts catalogue shows this set tho, my reg is this and my vin is this, obviously on a printed piece of paper. And obviously i asked them to check and double check as i need the valve and cover and i do not know which is latest rev or what it will fit. Took about 40 minutes to cross reference in stuff on what they say 2 systems and they said i actually need the 03L set...

Had a trip yesterday there to either get a refund or a exchange for the correct part and parts counter after another 30 minutes of digging, said the set they supplied is the right one for my vin engine code bla bla bla... but they can not check the second system as it is down... so they will investigate further on Monday and give me a call. They also specified the set with 04L does not appear in skoda database...:confused::confused::confused::confused ::confused::zx11:.


On top of all this this morning i had extended cranking time again with no fault codes (something i looked in before and is not a fuel supply issue but vvt).

[N871BUD]

hi, i went with both sets of part numbers and i said this is what is on the car my parts catalogue shows this set tho, my reg is this and my vin is this, obviously on a printed piece of paper. And obviously i asked them to check and double check as i need the valve and cover and i do not know which is latest rev or what it will fit. Took about 40 minutes to cross reference in stuff on what they say 2 systems and they said i actually need the 03L set...

Had a trip yesterday there to either get a refund or a exchange for the correct part and parts counter after another 30 minutes of digging, said the set they supplied is the right one for my vin engine code bla bla bla... but they can not check the second system as it is down... so they will investigate further on Monday and give me a call. They also specified the set with 04L does not appear in skoda database...:confused::confused::confused::confused ::confused::zx11:.



On top of all this this morning i had extended cranking time again with no fault codes (something i looked in before and is not a fuel supply issue but vvt).


Right time for a update, maybe not the best but i think i am on to something.
Cambelt done twice as first was thought something was missed, aux belt and rollers done also glow plugs.... and as per previous postcamshaft operating valve and housing making no difference whatsoever.
I have to mention is 18000k miles since issue was first noticed... and did not got any worse or better...

I was planning to order the whole camshaft module that includes the vvt system as sugested but now i am hesitant as i discovered something, my brother in law just bought a 17 plate este with identical specs and engine 2 months newer than my one and more then less milage. out of curiosity i put the vcds on it to see if anything is standing out and looking at cams in measuring blocks dat i noticed something that made me facepalm...

on idle
coolant temp 90 celsius
camshaft adjustment intake bank1: specidified value is 10*
camshaft adjustment intake bank1: actual value is 9.97*
camshaft adaptation intake bank1: phase position: 0.99*
camshaft speed (RPM): 375.0/min
camshaft adjustment intake bank1 activation 6.592%

on the same conditions parked on idle with engine at normal operating temperature my one:

coolant temp 91 celsius
camshaft adjustment intake bank1: specidified value is 47.52*
camshaft adjustment intake bank1: actual value is 47.98*
camshaft adaptation intake bank1: phase position: 0.0*
camshaft speed (RPM): 375.0/min
camshaft adjustment intake bank1 activation 44.116%

obviously way out then expected and to be fair i do not know how i missed this before in live data?!

Anyway let it cool off covers off checked the timing via crankshaft and pin on camshaft and also pin on the camshaft cover acces hole and spot on ***?! i was thinking i goofed up something on timebelt even tho i done it twice checked and double checked...

[radiator]

So what are you traying to say? The readings are different in your btrothers-in-lows car that they are in yours? But did you find the remedy to cure long crank?I have 1.6 tdi ea288 and don't see vvt 'barrel' so to say but flat cover where you have that I guess old part (vvt). Never mind. Did you solve the problem?

[N871BUD]

So what are you traying to say? The readings are different in your btrothers-in-lows car that they are in yours? But did you find the remedy to cure long crank?I have 1.6 tdi ea288 and don't see vvt 'barrel' so to say but flat cover where you have that I guess old part (vvt). Never mind. Did you solve the problem?

hi replacing the vvt system ( cover and insides ) sorted the values issues but not the ocasional slightly longer crank, that turned out to be a combination of things: battery issue, even if the battery was not old seems like was replaced with genuine and the value of the battery set on the car battery management did not match the battery causing it to wear prematurely. Once battery was replaced and car configured properly in battery management system with the correct type and capacity problem did not repeat itself. This happened in November 2022. Attention needs to be paid on changing battery on this engine as are 3 options of battery as type and many more are different capacity so... is not just a case of replacing the battery with another one. the car needs to know if is wet efb agm and what capacity it is 54 66 70 ah etc and manufacturer (while the rest makes sense as specs not sure how this affects the way battery management on the car behaves).

lesson learned: dealership might forget to configure the change of battery and that will cause preamature wear and shorten the life span of it... also is possible other issues to apear long term

[alan.bain]

You say you replaced the VVT system cover and insides. Which parts do you mean by that?