important: Nuts and bolts on your bike should always be tightened to the manufacturer's specifications.

How to Bleed Tektro Auriga Comp Disc Brakes

Learn how to bleed the air out of Tektro Auriga Comp hydraulic disc brakes.

In this tutorial we’ll learn how to bleed the hydraulic brake system on Tektro Auriga Comp Disc Brakes. You should always bleed the system after shortening or replacing the hose, or if you have opened the system to air at any time. If your brake action feels spongy, bleeding the system will also improve performance.

What You’ll Need

For this job you will need a 2, 3 and 4mm allen wrench, a 7mm open end wrench, a T15 Torx wrench, a piston holder or 10mm allen wrench in order to keep the pistons in place, a small bag and elastic band, and a clean rag. You will also need a Tektro hydraulic disc brake service kit, which should include a syringe, 2 lengths of plastic tubing, an outlet valve, and a bottle of Tektro hydraulic brake fluid (mineral oil). Make sure to use the specific type of oil for this brand, as using other types could damage your system. A repair stand and clean work space are also highly recommended.

Mount your bike in the repair stand, making sure the wheel axles are parallel with the floor. Now remove your wheel. Remove the disc brake pads and slide a piston block or 10mm allen wrench into the gap to keep the pistons in place.

Remove the rubber cover from the bleed outlet valve on the brake caliper. Attach the smaller tube from your service kit onto the syringe and fill your syringe about halfway with oil. Now firmly insert the syringe and tube onto the bleed outlet valve.

Using your 4mm allen wrench, slightly loosen the brake lever bracket until it rotates on the handlebar. Loosen and move the shifter out of the way if needed. Rotate the brake lever so that the top of the reservoir tank is parallel with the ground.

Using your T15 Torx wrench, loosen and remove the bolt on top of the reservoir tank, and thread the outlet valve into the hole, with the longer plastic tube firmly attached and place the other end into your plastic bag and keep it in place with an elastic band.

Now open the outlet valve on the caliper slightly 1/8 to 1/4 turn. Using the syringe, push and pull the oil back and forth through the system several times until there are no more air bubbles coming out of either end. Now tighten the bleed valve with your 7mm spanner to 4-6Nm.

Remove the hose and reinstall the rubber outlet valve cover. Now remove the outlet valve from the reservoir and reinstall the bolt using your T15 Torx wrench. Tighten this bolt to 2-4Nm.

Use a clean rag to wipe any excess oil off the lever, caliper, and hose. Reinstall your brake pads and front wheel. Depress the brake lever a few times, to ensure the action feels stiff and not spongy.

In our next tutorial we will take a more in-depth look at replacing and adjusting the brake pads on this model.

Related Links

Recommended Tools

Categories

Discuss this topic in the Bicycle Repairs and Mechanics Forum

How to replace rear shock spring

Lastest post 1 day ago

How do I take the spring off my rear shock?...

Read more

Does anyone know if the FSA comet 27/39t crankset with FSA external bearing bottom bracket can be converted to a 1x chain ring? I am unable to find any information anywhere....

Read more

WD40 on chain?

Lastest post 3 days ago

Hi, new here. Do not know much about maintenance, that is why I need an advice on chains. I have KMC chain on my hybrid and someone told me that I can use a bit of WD40 to keep it running, clean it from dust and whatsoever. He also is not very bright in terms of bike knowledge so I am doubting his claim. Probably WD40 is not good for lubing the chain or keeping it clean, right? There is need for s...

Read more

Gears changing by themselves

Lastest post 4 days ago

I have changed the handlebars on my son's bike for him and repositioned the gear change from the post to the bars. Now the gear shift lever, when in the lowest gears is changing all by itself into the higher gears. Whilst this automatic feature could be useful, it is not very practical for him! I have tried tightening the tightener but that didn't work. Any helpful suggestions very welcome, fr...

Read more

So I have a problem adjusting the V brakes on my bike. If I set them up so the pull on the lever feels normal, the wheel is won’t move because the pads are already on contact. If I set them up so the wheel will spin freely, then the they are so mushy that fully pulling the lever barely has any effect. I’ve tried a few things: checked the housing and cable, checked for points of flex / wobble i...

Read more

How often do you wash your bike?

Lastest post 1 week ago

Ciao. I know that some bike riders overexaggerate the 'cleaning part' and wash (or spray) their bikes at least once a week. I know, it's mandatory after a muddy trail ride. But I'm thinkging more about daily commuters. It gets dusty here and there, but how long is too long without a shower for a bike? For a bike that rides almost every day....

Read more

Air still trapped in the brakes

Lastest post 3 weeks ago

So, I bleed my Magura MT7 brakes easily 10 times in the last week but there's some air trapped inside that I just can't get rid off, no matter what I do, already tried everything I saw on the internet and that lever is still spongy and the rear wheel will turn with brakes fully applied if I push it hard enough. Any bike mechanics here with some input for this kind of situations? Thanks in advance...

Read more

Schwinn Boundary bottom bracket bearing let go. I would like to upgrade them to sealed bearings. Threaded frame bottom tube 35 mm nut thread od. x 73 mm wide....

Read more

Please watch the attached video. I gave a ride to person on my luggage carrier and her jeans got stuck in the chain. Ever since then, my back has been making this "ticking" sound or whatever you can call it, and it feels as if there's a bit of resistant to the pedals and a "locking" motion sometimes. Moreover, the wheel seems to be swinging a bit in the video and it's not turning in a straight cir...

Read more

I am upgrading an 8 year old Scott Solace from the Ultegra 6700 series, have acquired almost all the new components but wondering about the shifters. I have the Shimano Ultegra ST-6703 shifters for a triple. They work on my double crankset with a 10 speed drivetrain. What I am trying to find out is will the 10 speed shifters work with an 11 speed setup? Like I said, the shifters, even though they ...

Read more

Fixing up old bike

Lastest post 3 weeks ago

Hello, new here. Recently, I bought an old second hand bike and decided to fix it up. I wanted a cheap frame that I could work on and tweak from the ground up. Have learned a lot about bike repairs (lots of mistakes) and learned that there’s still a long way to go. Including pics and would like some ideas on how to work on fixing this up from here (please go easy on this newbie, haha). That bein...

Read more

Fox DPX2 Damper sound

Lastest post 4 weeks ago

Hello togehter I got my frist piggyback damper, en hear a „nock“ which definitly comes out of my dampet while i‘m squish the damper. Is this a normal noise? Video here: https://www.reddit.com/r/MTB/comments/pvygel/fox_dpx2_2021_is_this_noise_normal_i_hear_a_quiet/?utm_source=share&utm_medium=ios_app&utm_name=iossmf thanks✌🏻...

Read more

FRONT DERALIEUR NOT WORKING

Lastest post 1 month ago

Hi guys, I have restored a 90' Fisher mountain bike. It works perfectly apart from the front derailleur. Gears goes down no problem. They go up from the first to second cog no problem but it is very difficult to make it go to the biggest gear. This is an old SRAM groupset. It is not the cable tension, not the limit screws and not the position of the derailleur on the frame. These are the basic t...

Read more

Help with headset preload

Lastest post 1 month ago

First time adjusting a headset and I'd like to get it right. Brand new giant reign with a carbon frame, that I do not want to damage I finally have the preload set to where there is no play but I'm concerned that it is to tight... Stage 1- obvious play/clunk Stage 2- no clunk, but if I lock up the brake and push and pull hard, I can feel some very slight movement Stage 3 - no play or movemen...

Read more

Rear axle

Lastest post 1 month ago

  20210910_120907(1).jpg (Size: 82.12 KB / Downloads: 31) Hi, i am looking for a rear axle for my Devox felt rear wheel. i cannot find one anywhere, if not is there an alternative...

Read more