Originally Posted by Jack88

Pump the brakes. What trouble codes or symptoms do you have? And what tensioner are you talking about? I know of only the two timing belt tensioners and serpentine tensioner. None would be characterized to a bank.

If you are having issues with one of the timing tensioners, park the car immediately and do not start it again until it is fixed. Have it towed to where the work needs to be done, and do the full timing belt job. At a decent independent shop, there is no way around this costing $1400-1700, most of it labor. Do not try to save money and skip parts. Changing the belt, both tensioners, idler pulley, and water pump is absolutely required in any timing job, unless you have had it done recently already. Also highly recommended is the thermostat, given it only adds 5 minutes to the job and cost $12. If you had to do a thermostat later, it's about 12 hours labor by itself.

I repeat, if this is a timing tensioner issue, DO NOT START THE CAR AGAIN.

Originally Posted by Alfredoa8l

yes it does have a belt outside the engine that drives compressor /steering pump etc, but once you remove the valve covers a metal chain is run and has 2 tensioners for the camshafts, 1 in the driver front and 1 on the rear passenger side, that's the one that has to be replaced on mine

Originally Posted by Alfredoa8l

hello, I bought the car last week, chk engine light on, car drives fine no issues according to the seller timing belt done 10k miles ago,,, codes were P0020 and P0492, it calls for camshaft tensioner adjuster bank 2 internally open when tested, so the technician said he has to replace the tensioner with the shoes(guides), seems like I found a shop that can do that next week in Manchester CT lets see how they do and price, I will post how it goes, im still thinking if I want to do the other side (because of price amount),,,, as far as the P0492 its the secondary air (idk what it is or how to go about it) it will be looked once its in the shop

Originally Posted by Jack88

If you don't have receipts for it, I'd take off the timing cover on the front of the engine(two pieces, star bit screws hold it on.) Look at the water pump and two tensioners, they should look nearly new if they were done that recently. It's not terribly uncommon for a less informed owner ask the shop to replace just the belt in an effort to save money, not realizing replacing the rest is equally important. It would be good to know for sure.

Originally Posted by ohsigmachi

I saw you said you were getting a secondary air fault, those pumps are a known failure point on numerous Audi and other European models.

If your pump is indeed bad, and it's not a vacuum line, combi-valve, or solenoid fault (they can all throw secondary air codes) the pump is pricey, but very easy to replace on your own.

It's just inboard and forward of the passenger wheel once your take off the belly pan , a few screws, a hose and wire harness connector.

Originally Posted by Alfredoa8l

Hello, all I have its the code P0492 and I have not diagnosed the problem at all, once i take it to the shop tomorrow for the ist issue P0020 and fix it then ill have an answer this Friday for the secondary air fault, thanks for giving some hope on my nightmare for saying its not too hard to replace the pump if that's the issue, i will let you guys know what happens friday