judd judd juddering!?

[Nicks]

when I start my golf 1.8T from cold sometimes it makes this horrible noise almost like something is catching whilst spinning... i don't thinks it's the starter motor because I had it replaced.. but not only that it seems to judder quite a bit not loads but def noticable only from a cold start though. The car has done 41K, 03 plate.

Hope some one can help!!?

[mwazi]

if someone can answer this question it will help alot of us...sorry for hijacking your thread

[Crasher]

Two things spring to mind, starter motor squawk (the best way I can describe it) or cam chain tensioner/adjuster rattle, both of which are very common.

[Nicks]

the thing is I had the starter motor replaced..
and had the cam belt serviced very recently....
the thing is i could live with it, it's just the thought of it damaging something and then having to shell out!.....

[Crasher]

The cam relay CHAIN is inside the cylinder head at the other end of the engine to the cam belt and is not replaced as part of the cam belt change. The tensioner (AGU/ARZ) or timing adjuster (AUM/AUQ) is oil pressure fed and on the AUM/AUQ electronically activated by the ECU to vary the cam timing. These adjusters can rattle horribly on start up, my brand new genuine VAG AUQ engine in my Octavia VRS rattles horribly for a moment on start up in the morning.

[mobitune]

The tensioner (AGU/ARZ) or timing adjuster (AUM/AUQ) is oil pressure fed and on the AUM/AUQ electronically activated by the ECU to vary the cam timing. These adjusters can rattle horribly on start up, my brand new genuine VAG AUQ engine in my Octavia VRS rattles horribly for a moment on start up in the morning.

Wow!! VW's very own VTEC :)

[Nicks]

cheers for the feedback Chrasher!

sorry mate I don't have a clue about the tech side!

soo does this mean it's doing damage unless it's sorted!?

I've still got one months warranty on mine...
at the moment it's at vw sitting there because when they started it the other day it didn't make a whisper...(i wasn't there) so I said you better have it untill it does..

[a8 tech]

when I start my golf 1.8T from cold sometimes it makes this horrible noise almost like something is catching whilst spinning... i don't thinks it's the starter motor because I had it replaced.. but not only that it seems to judder quite a bit not loads but def noticeable only from a cold start though. The car has done 41K, 03 plate.

Hope some one can help!!?This is caused by brief oil starvation from start up and can be resolved by fitting the larger capacity oil filter and by cleaning out the oil strainer and removing the rocker cover and removing the carbon build up which ends up in the sump and blocking the oil pick up strainer.
Also change the oil more frequently and use mobile 1.
I have been involved with this issue as far back as 1998 and found no damage occurs to the chain but it doesn't sound good on a cold morning and the repairs suggested will decrease the frequency of the noise.I would say over the years i have carried out this repair to 300 1.8 t and 1.8 none turbo which had a recall for this issue (audi adr) in the early days where the oil pump was replaced and the timing chain and tensioner.

[Crasher]

The problem is that I have found with my own 1.8T that a brand new 2007 VAG AUQ engine with the 06A 115 561 B oil filter still rattles on start up.

[a8 tech]

mines ok crasher,but again it is classed by vag as ok and no long-term damage.Again mobile 1 seems to be the key in my opinion.AND THAT'S ALL IT IS

[a8 tech]

CONFIRMATION Long periods means overnight in german deception talk
Technical solution Transaction No.
1.8 l turbo - noises after cold start

Problem description

All Audi with 1,8 Turbo - engine

Noise from the engine for a few seconds after cold start

Cause

The camshaft is hydraulically adjusted through the engine oil pressure. If the engine is switched off for a long period, the pressure is reduced and the some of the oil flows back into the oil sump.

For the an adjustment to take place after the engine start, the oil pressure in the camshaft adjustment must be build up as fast as possible. During this time rattling noises can occur.

Production solution

None.

Service solution

Argumentation under Cause.

This noise doesn't affect the service life and the function of the engine.


• A parts replacement is not permitted.
And before you start harping on Crasher i have owned 3 1.8 ts and found the clean out and the bigger filter from the a4 and mobile 1 stops it when using every day.And by the way i started with vag in 1990and i dont wish to sound like a tw t but i will in this 1.8 t issue as i love 1,8 t and have carried out a lot of repairs over the years to these engines and have yet to see a camchain snap

[Nicks]

hey A8 tech!

cheers for the advise! appreciate. Is there only one type of the mobile 1 oil you talking about? or is it a semi?

I've just had a oil change and brake fluid change at Vw to and I think they always put in the castrol magnatec... doh

I'm going to have a word with them tomorrow and tell them about your advise if that is okay? thing is they have never heard about a strange noise coming from a first start except if it's from a dodgy starter motor... but I do live in red neck county.....

[Crasher]

I am going to change to a thinner grade (using 10w-40 Synta at the moment) of oil at 10k; it has only done 3k so far. Which Mobil 1 do you use the 0w-30, 0w-40, 10w-30, 15w-50 or Extended Performance versions such as the 10w-30?

[a8 tech]

1444144410W-30 if i remember,and it seems to resolve the problems.I will say the longer you leave the vehicle the more likely the brief rattle can occur.I think a bigger oil capacity and larger oil pick up should have been introduced on this engine and fixed service only but i suppose if the owners no the symptoms then they understand whats going on.

I believe nicks story with vw dealer as it still surprises me that dealers don't no about the common 1.8t oil problems.Nick if you live near Crashers workshop take it to him as hes a good un in the world of so called vw indi/main dealers that have only kids in there workshops.I've been looking at the Americans problems with the 1.8t sludge/carbon build up and they seem to suffer even more over yonder and they seem to change there oil more frequently,any way have a look at this.VW / Audi sludge problems

While the the 1.8T engines in Audi A4's, Audi TT, VW Passat, Jetta, Golf, New Bettle, are all very prone to sludge build-up, Audi/VW does not have an extended warranty for them from the factory. The factory warranty(USA) is 4 year/50,000 miles but it can be extended if purchased.

Although Audi/VW now has 10,000 mile service intervals, oil changes can be done between "services", and should be done if the vehicle is driven in heavy traffic, offroad, and non-highway use. Also, Audi/ VW will only warrant an engine if the customer has proof of all their oil changes. As of 2004 I believe all 1.8T engines must use synthetic oil.

So if you own one of these sludge-prone engines, what can you do? Obviously, Volkswagen Audi Group (VAG) recommends that you use only VW/AUDI recommended oil which at the time of writing is Castrol Syntec 5W-40. You should also keep up on your oil changes, making them more frequent if you drive hard or haul a lot of cargo. The most important thing for the VW or Audi owner is this: if the oil light comes on and beeps the high pitch beep that most everyone ignores, pull over and shut the engine down immediately. Many VAG engines can be saved by this procedure. Have the vehicle towed to a VAG dealer.

Their standard procedure is to inspect the cam bearings; if they're not scored, the oil pan will be removed and cleaned out and all the crankcase breather hoses and the oil pickup tube will be replaced. They'll do an oil pressure test with a mechanical gauge, and hopefully will also replace the turbo lines. Finally, the turbo will be checked for bearing free-play. The VAG turbos run really hot even with proper oil and coolant supply - that's why you need a good quality synthetic in them.Interesting points by those bots over the pond and i would say if the rattle from start up is more frequent then its a sign of blockages to the oil supply.

Once cleaned out i would continue to monitor and change the oil a second time after 1000 miles and then return to 10,000 or 12 months depending on your driving style.Crasher some of the us boys have mentioned the oil grade from the factory being incorrect for this engine type which may explain you very early signs of noise,it would be interesting to see the what's stuck to your rocker cover and oil strainer as i no there's always crap in mine when i remove them.

[Nicks]

Hey mate! just got back from the vw garage and they couldn't hear anything... but then I found out that they were moving the car into the shop over night so obivously it was moved last thing at and kept probably fairly warm....

I've just checked the invoice and they have a put Castrol Magnatec 500 in.
Now I'm pretty sure this a 10w 40 because this is what they advised me to top it up with about 10 months ago. ahhhhhhhhhhhhh are these guys for real.. I mean i was putting 10w 40 in my 1992 190e 2l merc but that had done 130k.

I'm not sure what to do now!! I just shelled out 188 pounds on a service(new rear and front pads, brake fluid change) and I don't even have the right oil in it..

to be honest I don't really want to ever have to go back there...
I used to have my merc serviced at merc and the service and respect to the customer seemed so much better. but then I guess it really just depends who is running the joint.

and another thing how much does the interior(dash) of my car rattle! bloody hell what did put this car together with prit stick. i think it's the rear columes aswell or something because it seems to be squeaking from the inside of them.sorry to go on! i do love my vw. i just wish they would spend a bit more time putting it together.. or have i just got a friday afternoon car.

cheers a8 tech and chrasher you guys rule! wish you guys worked down here...