Question about 1998 Audi A4

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Diagram of brake line on front passenger side for 1998 Audi A4. Question? Does the 98's have the senor on the brakes, as my neighbor changed my brakes last nite and said, the old ones dont have the sensor like the new ones. Left brake is done, Right brake.....problems. I need a brake line diagram Please. No man around so my young son and I are doing the work. But I need a diagram to "finish" following the line. Thanks Bunches!! Michele

Posted by mcdavittmich on


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  • Audi Master
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Was the brake line removed ? There is no reason a brake line needs to be replaced unless the line was broken or damaged.
One way to check if your car has sensors, is to look for a harness that runs and is secured on the strut. Also check the hub, there is usually a slot in the back where the sensor is mounted.
Some vehicles come without brake sensors, best thing to do is call local dealer, supply them with your VIN and ask them if it comes with sensors.
What were the repairs done to your brakes ? What is the problem after the repair was done ? You may only need to bleed the complete system if calipers were replaced.

Posted on Jun 17, 2017


5 Related Answers


  • 36 Answers

SOURCE: 2000 Audi A4 Quattro Passenger Side Power Window...

Ok you have either one of two main problems with it.
1. does it go in one direction only then jams the other way?
Ans. the plastic clips that hold the window to the lifting rail can break.
these can be replaced by removing the door trim & replacing though you will need torx type tools.
2. As with vw golfs & passets the motors pack up or even the wire can break on some of them.
Ans. replace the motor unit in the door or the cable & rail.

3. It is heardly heard tell of but the only other problem is that one of the wires in the hinge area to the door has broken.

4. we have had this one a few times but this would also include the interior lights & central locking not working as well as the windows.
The central convenience unit under the passenger foot well can go wonky & needs to be replaced, usually caused by water coming in through the heaters air filter when the water is trapped in the front of the car ( caused by rotten leaves stuck in the drain points & also happens to the A6 models )

Posted on Nov 28, 2008


Colin Stickland

  • 22485 Answers

SOURCE: Knocking noise on right side when applying pressure to brakes!

lower track control arm bushes

Posted on Dec 14, 2008


Clint Smock

  • 4669 Answers

SOURCE: abs noise in 2001 Audi A6 2.7 T Quattro

It is common that ABS system do this from too much air gap to a wheel speed sensor. I would check the left front, since that is the side you had apart. Make sure the air gap is o.k and the reluctor wheel is the same size as the old one.

Posted on Mar 28, 2009


  • 79 Answers

SOURCE: Audi A6 Allroad

jack the car up saftely then take the wheels off .. then you will see the brake calipier turn the wheel towards you so the calipier is facing you . at the bottom of the calp you will see a small bolt at bottom undo this and lift prize the calp up then remove 1 pad the inside on where the piston is then put calp back down and put the bolt back in just to hold it in place then when you have done this put a large stronge screw driver in via hole in front to push the piston all the way back but make sure you do the evenly and piston goes in straight or it will get stuck same with all types of brakes. once you have done this reopen calp and take the other pad out clean all area with a wire brush and replace the new pads in place,, and retighten bolt etc , before you start the other side please make sure you pump brake peddle until it goes hard again. then do same to over side ,

hope this is a great help matdav69

Posted on Apr 07, 2009



  • 1874 Answers

SOURCE: How do you change front brake pads on an Audi A6

How to change front brake pads & rotors (brake disc) on 2006 Audi A6:

Don't disconnect any brake line from caliper!
Don't disconnect any ABS sensor!
For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow:

1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose!
2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper.
3. Now you must thoroughly clean the brake calipers (free of grease).
4. Remove outer brake pad from brake carrier.
5. Pull inner brake pad out of brake caliper piston.
6. Remove brake carrier from wheel bearing housing (two ribbed bolts). 125 Nm
7. Remove brake disc from wheel hub.
8. Install brake carrier on wheel bearing housing. Tightening torque for two ribbed bolts = 125 Nm.
9. Check up the brake fluid level on the reservor, and emptying if neccessary!
10. Push piston back into brake caliper housing.
11. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward).
12. Install outer brake pad into brake carrier.
13. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm.
14. Install both caps.
15. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!

Posted on Nov 28, 2010

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