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Audi A4 B6 1.8T AMB Timing Belt Replacement

We have another Audi A4 repair guide for you today. This tutorial will show you how to replace the timing belt on you B6 generation Audi A4. Just a FYI, this 1.8t AMB engine has an internal water pump. You can definitely do the timing belt replacement in your garage provided you have the right tools. And while the procedure itself is not difficult, because you are working with timing parts, you have to be careful. Double check everything at each step and then check it again. You can do some serious damage to your engine if the timing is off. Now that the doom and gloom part is out of the way, let's save some money! In addition to your regular socket and wrench set you will need:

  1. Jack stands
  2. Torx socket bit set (T20, T25, T30, T40, T45)
  3. Hex allen socket bit set
  4. Belt Tension Pin Wrench Tool 3387 (not mandatory but highly recommended for setting proper belt tension)
  5. G12 Coolant (if you are changing the water pump)

Preparing For Carrier Service Position

1. Remove the front bumper by following the Audi A4 B6 Bumper Removal Guide.

2. Remove the top engine cover by turning the three plastic screws 180 degrees and lifting the plastic cover off. audi a4 1.8t engine cover

3. Remove the two screws holding the air duct. audi a4 air duct

4. Remove two of the torx bolts holding the top of the carrier. Do the same on the other side of the carrier. audi a4 carrier bolts

5. Remove the inter-cooler duct (held in place by 4 clips) by pressing the clips and sliding the duct to the right. Remove the three big torx bolts that secure the shock absorber. Do the same on the other side of the car. Finally remove the torx bolt below the headlight that is securing the fender. Do the same on the other side. audi a4 carrier removal bolts

6. There are clips on both sides of the car that secure the AC lines. Unclip the lines. audi 1.8t ac line clip

7. At this point you can slide the carrier forward several inches into the service position and secure it by putting one of the top bolts back in. While there are some people that prefer to completely swing the carrier out of the way - that is unnecessary on the 1.8T. There is plenty of room to do the work with the carrier in the service position.

8. Continue by removing the accessory serpentine belt. Use a 17mm open ended wrench to rotate the tensioner clockwise and take out the belt. After that remove the three bolts that hold the belt tensioner and take it out. audi a4 1.8t serpentine belt tensioner

9. Remove the plastic brackets that secure the hose from the top timing cover. They are held in place by phillips screws. audi a4 engine clip

10. Two metal clips (one on each side) secure the top timing cover. Undo those and slide the cover up and out. You will have to do some maneuvering to get the cover to clear the hose.I recommend removing the electrical plug from the camshaft position sensor to give you more room. audi a4 1.8t upper timing cover

Comments

jim 06-21-2016 10:46
this is a great info and I thank you very much
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lefu 09-06-2016 02:33
Hi, the water pump failed and audi a4 1.8t 2005 model could not cran, when replacing the water pump I found that the timing belt was badly damaged. Timing belt and the water pump were replaced and now car crank but it does not sta. Please help.
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lefu 09-06-2016 02:37
Again, how to set up a time on the timing belt when it it became out of time because of teeth of timing belt that were damaged
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ben 10-31-2016 23:37
When the timing belt was damaged it jumped time and bent the valves in the head so you have no compression and the motor will not start. You will need to pull the head and take it to a machine shop.
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ithuteng 12-21-2016 09:50
Afternoon i mistakenly didnot mark my cams on A4 b6 2.0 Alt engine. I was doing the valves and the stem seals so just finished putting the valves back on the head but now im having a problem with lining the other 2 to the 1 with thetiming mark as i took the timing chain out. Can you please help with lining the cams
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ben 12-21-2016 21:11
It appears that motor is similar to the 1.8t vw engines. We don't have the ALT motor in the u.s. but it looks like the timing set up is like the 1.8t.
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Jack 12-24-2016 15:38
Helpful Article!! I have a situation/quest ion regarding the tensioner. I had not the tool to hold the piston depressed, hence allowed it to extend fully. Question is two fold: one- what is the method to recompress the piston, and two- what else can be used as a tensioner securing tool, as I have neither time nor availability to source the proper Audi tool. Thanks!!!
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ben 12-25-2016 22:50
You pretty much need the tool to keep it compressed or you won't get the tensioner installed. It is a cheap too. Maybe $10
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Lyzz 05-11-2017 23:01
I get the marks on both timing and cam aligned and when I reinstall the belt, the cam moves by one tooth. How do you get the belt on properly without moving the timing at all?
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Mohsin 05-29-2017 07:58
Extremely good n well explained with the helps of pics. Thanku so much.
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Suzuki Pho Quang 10-01-2017 01:58
Thanks your witn train You will have to do some maneuvering to get the cover to clear the hose.I recommend removing the electrical plug from the camshaft position sensor to give you more room... http://www.suzukiphoquang.org/
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Buhle 11-15-2017 07:15
Hi
I have a audi a4 1.8t
I have done all markings and reinstalled the timing belt but when I start the car it has jumped tooth

Please help
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fennnell 02-05-2018 23:47
hi my a4 B6 audi check engin light stays on timing looks good
car starts good , drive,s good .help
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Helpful knowledge. Regards.
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Jimmy 03-15-2018 15:37
We replace timing belt and valves when we first take off on first gear really sluggish once going it runs good what is the problem
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