TDI oil pump drive chain tensioner kit change

So is this another chain that needs to be replaced on top of the cambelt that Im already aware of?
So 16 year old Audi A2, 115k miles ... its due a cam belt which is £400. maybe a waterpump, and this also ??!
With regarding doing your Cambelt you just as well do waterpump while it’s all apart from memory about £40 ..5 min job to fit while it’s all apart that’s a no brainier if you pardon my expression ...the oil pump timing chain and sprockets is new to me as well and I’ve run a couple of tdis for donkeys years ..so I’m in the same position as you and many others as above I’ve written ..I will be doing it around 160k but will be listening out ....I understand for a lot it’s funds ..I can only suggest keeping an ear for any strange noises ..
 
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When I went into Audi dealership they brought up their list of service intervals, there were loads of things, and some at 2 year intervals ... it was daunting.
Things like brake fluid, does that really need to be changed every 2 years?
 
When I went into Audi dealership they brought up their list of service intervals, there were loads of things, and some at 2 year intervals ... it was daunting.
Things like brake fluid, does that really need to be changed every 2 years?
This could be controversial but no brake fluid is not necessary to change every 2 years I have done it around 4 to 5 years ..I’ve also had several super cars and unless your tracking and virtually boiling your brake fluid it’s not necessary I would rather you use good engine oil and change that regularly ..? and fit decent tyres
 
This could be controversial but no brake fluid is not necessary to change every 2 years I have done it around 4 to 5 years ..I’ve also had several super cars and unless your tracking and virtually boiling your brake fluid it’s not necessary I would rather you use good engine oil and change that regularly .. and fit decent tyres

I changed the brake fluid on one if my cars recently, I’m sure it’s factory fluid, didn’t really nice must difference after.


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Really old brake fluid tends to take on an almost burnt smell I can attest to that as autumn time I was stripping out the brakes on my old 1950s dodge pickup ...and yes it can over time absorb moisture ..I’m not advocating leaving it 10 years but every 5 for me personally is fine ..although I believe most of the new cars produced say 2 to 3 years ..I think servicing is in a lot of ways a money making machine ..a lot of this is common sense ..and let’s face it these big posh showrooms taking some up keep ..don’t fall for it ..
 
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You can get a tester for the brake fluid, it absorbs water over time. It is now an MOT failure if it's dirty. I had one vehicle that didn't need it changing till it was 10 years old.
 
So to the untrained eye which areas show wear?
If you look at the balance weight sprocket you can see the difference in tooth shape , this is indicative of a badly worn sprocket ( sharp peaks to the teeth compared to other visible sprockets) normally caused by a worn or badly adjusted chain or tensioner.

Keith.
 
I had the chain, tensioner and ķpulleys replaced two weeks ago on my wifes tdi90. I was worried about the noise from the sump, at 105k worse than my tdi90 @237k. It turned put to be the idler pulley, the one with the the seven ball bearings making a rattle, the chain was rubbing against the crankcase but im not sure why(no pics from mechanic). The chain itself and tensioner were not bad so alot of labour for a ball bearing. Nice to know its ready for another 100k
On the photo the balancing pulley does seem to have pointy teeth, however i noticed the tensioner has pushed the chain up to the crankcase, so that must be a worn(longer chain). In my case it was only 2mm longer at about 35cm-impressive.
I suspect most of the failures may be down to a blocked oil supply to the back of the tensioner, which hydraulically pushes its arm against the chain. A slack chain would result which could get caught up on itself.
 
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