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royxaxa

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Posts posted by royxaxa

  1. I agree with RFM. these Audi always have gradual changes here and there all the time including engine, drivetrain and styling things.

    also Q5 2.0T reaches peak torque of 258 ft.lb at 1500rpm vs. 955 4.5 CTT at 2250 rpm

    and it is a much lighter vehicle of 4079lbs vs. 5200+lbs of our CTT. that's 1000+ lbs of weight.

    the only complain I have for the Q5 is the steering feeling is a little on the light side comparing with CTT and my wife's Audi TT

  2. I know there should be no match here.

    but I was driving my friend's 11 Q5 2.0T with 20kkm on it. the small animal feels so strong and ready. the gas pedal feel is very smooth and turbo kicks in almost instantly on local or highway speed.

    my 04 CTT with 210kkm is strong and brutal but it seems the turbo lag is rather more noticeable than that 2.0T engine.

    IS there ANYTHING wrong with my CTT? I know there is no code related to engine nor transmission now with Durametric scan. the p!g is bone stock. I really take care of the car with good German oil and additives, always running on 94 gas. Diverter valves were replaced less than a year ago with OE bosch ones.

    any suggestions guys? might be a time to get a tune?? or fuel pumps?

  3. tell me where you can cruise @ 200km/h in Canada? I would love to be there.

    one of the biggest problems of our p!gs is the car runs so fast and smooth and quiet , you thought you were slooow. lol

    back to the story, the video is a little loud to me. I've seen about five 04 or 05MY CS or CTTs, all have the tapping noise more or less. but yours is pretty loud. but that might related to where you put your camera, distance to the engine, stuff like that.

    I tried some Liqui Moly MOS2 in my 210kkm CTT . It quiets down the tapping.

    instead of replacing the engine, or any major rebuild, I would just put some proper oil and enjoy it.

  4. I plan to replace the fuel filter for my 200k km CTT.

    so my question is: should I disconnect both batteries or just the main one under the seat before I perform the service?

    I noticed there is a ground wire out of the battery box under the driver seat. I assume disconnection of that one is equivalent to removing the cover of the box and disconnect from there.

    thanks guys!

  5. working4it, that's some hard core job. congrats!

    when i did the timing chain replacement and saw the alternator, I was like "hope I will never have to change that" cuz it is so tight down there!

    do you think the it will be different on CTT? I am not sure if the pass. side turbo will be in the way.

    also did you change the timing chain tensioner? I think it is right above the alternator and only $70 bucks or so.

  6. you can get the calibration tool from dealer.i think it is like $100 or so. it is basically 2 pieces of steel. when you calibrate the camshaft, you insert the steel pieces to the slots at end of the camshafts to lock them in place. this way you can tight the bolts for the camshaft wheels. remember rotate the crankshaft couple of turns to check the angle of the slots with a mirror. we did calibrate 3 times before getting a satisfying result.

    I would exhaust all other options before changing the chain. it is a big job. no parts are particularly expensive but there are so many of them. it all adds up.

    check the deviation angles of 2 camshafts with Durametrix and read the factory service manual. next i would probably change the chain tensioner.

    also if you just want to calibrate the timing, you do not need to remove the chain and the chain cover at front. only the valve covers are good enough. only challenge is probably the access to crankshaft.

    I did notice that the new chain was about 1/4 shorter than the old one. but i do not think that will result a P0016 code. the play of chain tensioner should be able to compensate that.

    good luck

    Roy

  7. regarding the P0021 bank 2 code, it could be a big job

    mine was P0016 which was same problem on bank 1

    plug in your durametric and check the camshaft deviation angles. they should be around 0 at idle and the limits are +/- 6 degrees(it is measured at crankshaft angle so the actual camshaft angle is half of that). if it is out of the range, it would throw out a code. and the car could have rough idle. mine was +13 at bank 1 and -5 at bank 2

    swapping the camshaft sensors of bank 1 and 2 did not change the readings. i also replaced the timing chain tensioner.

    so long story short I opened up the front end, calibrated the timing(you gonna need a special tool for that), changed the timing chain and all the chain guides(one of them was actually cracked in the middle), all o-rings, and gaskets that I could see. also water pump, pulley, thermostat, and starter, some broken hoses/vent lines. parts was about $2k-3k. and we spent about 25-30 hrs total.

    after that everything was okay.

    I have a more detailed write up for that on 6speed forum under the name of zzzx990.

    hope you do not have to do the same. good luck

    Roy

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